Last Modified: 08-22-2025 6.11:8.1.0 Doc ID: RM0000003TPCMMO
Model Year Start: 2026 Model: GR Corolla Prod Date Range: [08/2025 -           ]
Title: NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 3 Line; 2026 MY Corolla Corolla Hatchback GR Corolla [08/2025 -        ]

Check Bus 3 Line

DESCRIPTION

Symptom

Trouble Area

There are ECUs or sensors that display a communication stop on the bus diagnostic screen. Or, there are ECUs or sensors that display communication stop history on the "Detail" screen.
  • CAN main bus line, CAN branch line or connector
  • Central gateway ECU (network gateway ECU)
  • Radio and display receiver assembly

    (w/ Radio and Display Receiver Assembly)

  • DCM (telematics transceiver)

    (w/ Telematics Transceiver)

  • Stereo component equalizer assembly

    (w/ Active Noise Control System)

  • No. 2 stereo component equalizer assembly

    (w/ ASC System)

  • Combination meter assembly
  • No. 15 CAN junction connector

WIRING DIAGRAM

except G16E-GTS
for G16E-GTS

CAUTION / NOTICE / HINT

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

NOTICE:

  • Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.

    Click here 2026 MY Corolla Corolla Hatchback GR Corolla [08/2025 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

  • Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 10 minutes or more before measuring the resistance.
  • After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) battery terminal.

    Click here 2023 - 2026 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; SETUP: WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL: BEFORE DISCONNECTING BATTERY

  • When disconnecting and reconnecting the battery.

    HINT:

    When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

    Click here 2023 - 2026 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; SETUP: WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL: AUTOMATIC LEARNING CHART

  • Some parts must be initialized and set when replacing or removing and installing parts.

    Click here 2026 MY Corolla Corolla Hatchback Corolla HV GR Corolla [08/2025 -        ]; SETUP: WHEN REPLACING OR REMOVING/INSTALLING PARTS: WORK PROCEDURE

  • After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again.

    DTC check procedure: Turn the ignition switch to ON and wait for 1 minute or more. Then operate the suspected malfunctioning system and drive the vehicle at 60 km/h (37 mph) or more for 5 minutes or more.

  • After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed as normal.

    Click here 2026 MY Corolla Corolla Hatchback GR Corolla [08/2025 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM

  • Before replacing the DCM (telematics transceiver), refer to Registration.

    Click here 2023 - 2026 MY Corolla Corolla Hatchback GR Corolla [11/2022 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

HINT:

  • Before disconnecting related connectors for inspection, push in on each connector body to check that the connector is not loose or disconnected.
  • When a connector is disconnected, check that the terminals and connector body are not cracked, deformed or corroded.

PROCEDURE

1.

CHECK FOR OPEN IN CAN MAIN BUS LINES

(a) Disconnect the cable from the negative (-) battery terminal.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

I173-30 (CA3H) - I173-29 (CA3L)

Cable disconnected from negative (-) battery terminal

Below 70 Ω

*a

Component with harness connected

(Central Gateway ECU (Network Gateway ECU))
NG

GO TO STEP 80

OK

2.

CHECK FOR SHORT IN CAN BUS LINES

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

I173-30 (CA3H) - I173-29 (CA3L)

Cable disconnected from negative (-) battery terminal

54 Ω or higher

*a

Component with harness connected

(Central Gateway ECU (Network Gateway ECU))
NG

GO TO STEP 55

OK

3.

CHECK FOR SHORT TO +B IN CAN BUS LINE

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Component with harness connected

(Central Gateway ECU (Network Gateway ECU))

-

-

Standard Resistance:

Tester Connection

Condition

Specified Condition

I173-30 (CA3H) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I173-29 (CA3L) - I26-16 (BAT)
NG

GO TO STEP 30

OK

4.

CHECK FOR SHORT TO GND IN CAN BUS LINE

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Component with harness connected

(Central Gateway ECU (Network Gateway ECU))

-

-

Standard Resistance:

Tester Connection

Condition

Specified Condition

I173-30 (CA3H) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I173-29 (CA3L) - I26-4 (CG)
OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

NG

5.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

except G16E-GTS

A

for G16E-GTS

B
B

GO TO STEP 15

A

6.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I214 No. 15 CAN junction connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-3 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I214-14 (CANL) - I26-4 (CG)
NG

GO TO STEP 11

OK

7.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Radio and Display Receiver Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-1 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I214-12 (CANL) - I26-4 (CG)
NG

GO TO STEP 12

OK

8.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

w/ Telematics Transceiver

A

w/o Telematics Transceiver

B
B

GO TO STEP 10

A

9.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to DCM (Telematics Transceiver)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-2 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I214-13 (CANL) - I26-4 (CG)
NG

GO TO STEP 13

OK

10.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Combination Meter Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-4 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I214-15 (CANL) - I26-4 (CG)
OK

REPLACE NO. 15 CAN JUNCTION CONNECTOR
NG

GO TO STEP 14

11.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I173 central gateway ECU (network gateway ECU) connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-3 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I214-14 (CANL) - I26-4 (CG)
OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

NG

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

12.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

(a) Disconnect the I175 radio and display receiver assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Radio and Display Receiver Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-1 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I214-12 (CANL) - I26-4 (CG)
OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

13.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

(a) Disconnect the I143 DCM (telematics transceiver) connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to DCM (Telematics Transceiver)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-2 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I214-13 (CANL) - I26-4 (CG)
OK

REPLACE DCM (TELEMATICS TRANSCEIVER)

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

14.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

(a) Disconnect the I5 combination meter assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Combination Meter Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-4 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I214-15 (CANL) - I26-4 (CG)
OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

15.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I188 No. 15 CAN junction connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-2 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I188-13 (CANL) - I26-4 (CG)
NG

GO TO STEP 23

OK

16.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

w/ Radio and Display Receiver Assembly

A

w/o Radio and Display Receiver Assembly

B
B

GO TO STEP 18

A

17.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Radio and Display Receiver Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-4 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I188-15 (CANL) - I26-4 (CG)
NG

GO TO STEP 24

OK

18.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to DCM (Telematics Transceiver)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-3 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I188-14 (CANL) - I26-4 (CG)
NG

GO TO STEP 25

OK

19.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - STEREO COMPONENT EQUALIZER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Stereo Component Equalizer Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-5 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I188-16 (CANL) - I26-4 (CG)
NG

GO TO STEP 26

OK

20.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

w/ ASC System

A

w/o ASC System

B
B

GO TO STEP 22

A

21.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - NO. 2 STEREO COMPONENT EQUALIZER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to No. 2 Stereo Component Equalizer Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-6 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I188-17 (CANL) - I26-4 (CG)
NG

GO TO STEP 28

OK

22.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Combination Meter Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-1 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I188-12 (CANL) - I26-4 (CG)
OK

REPLACE NO. 15 CAN JUNCTION CONNECTOR
NG

GO TO STEP 29

23.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I173 central gateway ECU (network gateway ECU) connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-2 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I188-13 (CANL) - I26-4 (CG)
OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

NG

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

24.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

(a) Disconnect the I175 radio and display receiver assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Radio and Display Receiver Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-4 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I188-15 (CANL) - I26-4 (CG)
OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

25.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

(a) Disconnect the I143 DCM (telematics transceiver) connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to DCM (Telematics Transceiver)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-3 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I188-14 (CANL) - I26-4 (CG)
OK

REPLACE DCM (TELEMATICS TRANSCEIVER)

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

26.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - STEREO COMPONENT EQUALIZER ASSEMBLY)

(a) Disconnect the I242 or O227 stereo component equalizer assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Stereo Component Equalizer Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-5 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I188-16 (CANL) - I26-4 (CG)
NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - STEREO COMPONENT EQUALIZER ASSEMBLY)
OK

27.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

w/ Stereo Component Amplifier

A

w/o Stereo Component Amplifier

B
A

REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY

B

REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY

28.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - NO. 2 STEREO COMPONENT EQUALIZER ASSEMBLY)

(a) Disconnect the I250 No. 2 stereo component equalizer assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to No. 2 Stereo Component Equalizer Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-6 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I188-17 (CANL) - I26-4 (CG)
OK

REPLACE NO. 2 STEREO COMPONENT EQUALIZER ASSEMBLY

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - NO. 2 STEREO COMPONENT EQUALIZER ASSEMBLY)

29.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

(a) Disconnect the I5 combination meter assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Combination Meter Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-1 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) battery terminal

200 Ω or higher

I188-12 (CANL) - I26-4 (CG)
OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

30.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

except G16E-GTS

A

for G16E-GTS

B
B

GO TO STEP 40

A

31.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I214 No. 15 CAN junction connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-3 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I214-14 (CANL) - I26-16 (BAT)
NG

GO TO STEP 36

OK

32.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Radio and Display Receiver Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-1 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I214-12 (CANL) - I26-16 (BAT)
NG

GO TO STEP 37

OK

33.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

w/ Telematics Transceiver

A

w/o Telematics Transceiver

B
B

GO TO STEP 35

A

34.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to DCM (Telematics Transceiver)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-2 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I214-13 (CANL) - I26-16 (BAT)
NG

GO TO STEP 38

OK

35.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Combination Meter Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-4 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I214-15 (CANL) - I26-16 (BAT)
OK

REPLACE NO. 15 CAN JUNCTION CONNECTOR
NG

GO TO STEP 39

36.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I173 central gateway ECU (network gateway ECU) connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-3 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I214-14 (CANL) - I26-16 (BAT)
OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

NG

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

37.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

(a) Disconnect the I175 radio and display receiver assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Radio and Display Receiver Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-1 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I214-12 (CANL) - I26-16 (BAT)
OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

38.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

(a) Disconnect the I143 DCM (telematics transceiver) connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to DCM (Telematics Transceiver)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-2 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I214-13 (CANL) - I26-16 (BAT)
OK

REPLACE DCM (TELEMATICS TRANSCEIVER)

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

39.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

(a) Disconnect the I5 combination meter assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Combination Meter Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-4 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I214-15 (CANL) - I26-16 (BAT)
OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

40.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I188 No. 15 CAN junction connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-2 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I188-13 (CANL) - I26-16 (BAT)
NG

GO TO STEP 48

OK

41.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

w/ Radio and Display Receiver Assembly

A

w/o Radio and Display Receiver Assembly

B
B

GO TO STEP 43

A

42.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Radio and Display Receiver Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-4 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I188-15 (CANL) - I26-16 (BAT)
NG

GO TO STEP 49

OK

43.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to DCM (Telematics Transceiver)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-3 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I188-14 (CANL) - I26-16 (BAT)
NG

GO TO STEP 50

OK

44.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - STEREO COMPONENT EQUALIZER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Stereo Component Equalizer Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-5 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I188-16 (CANL) - I26-16 (BAT)
NG

GO TO STEP 51

OK

45.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

w/ ASC System

A

w/o ASC System

B
B

GO TO STEP 47

A

46.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - NO. 2 STEREO COMPONENT EQUALIZER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to No. 2 Stereo Component Equalizer Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-6 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I188-17 (CANL) - I26-16 (BAT)
NG

GO TO STEP 53

OK

47.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Combination Meter Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-1 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I188-12 (CANL) - I26-16 (BAT)
OK

REPLACE NO. 15 CAN JUNCTION CONNECTOR
NG

GO TO STEP 54

48.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I173 central gateway ECU (network gateway ECU) connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-2 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I188-13 (CANL) - I26-16 (BAT)
OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

NG

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

49.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

(a) Disconnect the I175 radio and display receiver assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Radio and Display Receiver Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-4 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I188-15 (CANL) - I26-16 (BAT)
OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

50.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

(a) Disconnect the I143 DCM (telematics transceiver) connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to DCM (Telematics Transceiver)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-3 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I188-14 (CANL) - I26-16 (BAT)
OK

REPLACE DCM (TELEMATICS TRANSCEIVER)

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

51.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - STEREO COMPONENT EQUALIZER ASSEMBLY)

(a) Disconnect the I242 or O227 stereo component equalizer assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Stereo Component Equalizer Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-5 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I188-16 (CANL) - I26-16 (BAT)
NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - STEREO COMPONENT EQUALIZER ASSEMBLY)
OK

52.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

w/ Stereo Component Amplifier

A

w/o Stereo Component Amplifier

B
A

REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY

B

REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY

53.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - NO. 2 STEREO COMPONENT EQUALIZER ASSEMBLY)

(a) Disconnect the I250 No. 2 stereo component equalizer assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to No. 2 Stereo Component Equalizer Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-6 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I188-17 (CANL) - I26-16 (BAT)
OK

REPLACE NO. 2 STEREO COMPONENT EQUALIZER ASSEMBLY

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - NO. 2 STEREO COMPONENT EQUALIZER ASSEMBLY)

54.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

(a) Disconnect the I5 combination meter assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Combination Meter Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-1 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) battery terminal

6 kΩ or higher

I188-12 (CANL) - I26-16 (BAT)
OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

55.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

except G16E-GTS

A

for G16E-GTS

B
B

GO TO STEP 65

A

56.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I214 No. 15 CAN junction connector.

(b) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-3 (CANH) - I214-14 (CANL)

Cable disconnected from negative (-) battery terminal

108 to 132 Ω
NG

GO TO STEP 61

OK

57.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Radio and Display Receiver Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-1 (CANH) - I214-12 (CANL)

Cable disconnected from negative (-) battery terminal

200 Ω or higher
NG

GO TO STEP 62

OK

58.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

w/ Telematics Transceiver

A

w/o Telematics Transceiver

B
B

GO TO STEP 60

A

59.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

(a) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to DCM (Telematics Transceiver)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-2 (CANH) - I214-13 (CANL)

Cable disconnected from negative (-) battery terminal

200 Ω or higher
NG

GO TO STEP 63

OK

60.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Combination Meter Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-4 (CANH) - I214-15 (CANL)

Cable disconnected from negative (-) battery terminal

108 to 132 Ω
OK

REPLACE NO. 15 CAN JUNCTION CONNECTOR
NG

GO TO STEP 64

61.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I173 central gateway ECU (network gateway ECU) connector.

(b) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-3 (CANH) - I214-14 (CANL)

Cable disconnected from negative (-) battery terminal

1 MΩ or higher
OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

NG

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

62.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

(a) Disconnect the I175 radio and display receiver assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Radio and Display Receiver Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-1 (CANH) - I214-12 (CANL)

Cable disconnected from negative (-) battery terminal

1 MΩ or higher
OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

63.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

(a) Disconnect the I143 DCM (telematics transceiver) connector.

(b) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to DCM (Telematics Transceiver)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-2 (CANH) - I214-13 (CANL)

Cable disconnected from negative (-) battery terminal

1 MΩ or higher
OK

REPLACE DCM (TELEMATICS TRANSCEIVER)

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

64.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

(a) Disconnect the I5 combination meter assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Combination Meter Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-4 (CANH) - I214-15 (CANL)

Cable disconnected from negative (-) battery terminal

1 MΩ or higher
OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

65.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I188 No. 15 CAN junction connector.

(b) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-2 (CANH) - I188-13 (CANL)

Cable disconnected from negative (-) battery terminal

108 to 132 Ω
NG

GO TO STEP 73

OK

66.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

w/ Radio and Display Receiver Assembly

A

w/o Radio and Display Receiver Assembly

B
B

GO TO STEP 68

A

67.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Radio and Display Receiver Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-4 (CANH) - I188-15 (CANL)

Cable disconnected from negative (-) battery terminal

200 Ω or higher
NG

GO TO STEP 74

OK

68.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

(a) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to DCM (Telematics Transceiver)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-3 (CANH) - I188-14 (CANL)

Cable disconnected from negative (-) battery terminal

200 Ω or higher
NG

GO TO STEP 75

OK

69.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - STEREO COMPONENT EQUALIZER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Stereo Component Equalizer Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-5 (CANH) - I188-16 (CANL)

Cable disconnected from negative (-) battery terminal

200 Ω or higher
NG

GO TO STEP 76

OK

70.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

w/ ASC System

A

w/o ASC System

B
B

GO TO STEP 72

A

71.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - NO. 2 STEREO COMPONENT EQUALIZER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to No. 2 Stereo Component Equalizer Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-6 (CANH) - I188-17 (CANL)

Cable disconnected from negative (-) battery terminal

200 Ω or higher
NG

GO TO STEP 78

OK

72.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Combination Meter Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-1 (CANH) - I188-12 (CANL)

Cable disconnected from negative (-) battery terminal

108 to 132 Ω
OK

REPLACE NO. 15 CAN JUNCTION CONNECTOR
NG

GO TO STEP 79

73.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I173 central gateway ECU (network gateway ECU) connector.

(b) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-2 (CANH) - I188-13 (CANL)

Cable disconnected from negative (-) battery terminal

1 MΩ or higher
OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

NG

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

74.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

(a) Disconnect the I175 radio and display receiver assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Radio and Display Receiver Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-4 (CANH) - I188-15 (CANL)

Cable disconnected from negative (-) battery terminal

1 MΩ or higher
OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

75.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

(a) Disconnect the I143 DCM (telematics transceiver) connector.

(b) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to DCM (Telematics Transceiver)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-3 (CANH) - I188-14 (CANL)

Cable disconnected from negative (-) battery terminal

1 MΩ or higher
OK

REPLACE DCM (TELEMATICS TRANSCEIVER)

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - DCM (TELEMATICS TRANSCEIVER))

76.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - STEREO COMPONENT EQUALIZER ASSEMBLY)

(a) Disconnect the I242 or O227 stereo component equalizer assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Stereo Component Equalizer Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-5 (CANH) - I188-16 (CANL)

Cable disconnected from negative (-) battery terminal

1 MΩ or higher
NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - STEREO COMPONENT EQUALIZER ASSEMBLY)
OK

77.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

w/ Stereo Component Amplifier

A

w/o Stereo Component Amplifier

B
A

REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY

B

REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY

78.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - NO. 2 STEREO COMPONENT EQUALIZER ASSEMBLY)

(a) Disconnect the I250 No. 2 stereo component equalizer assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to No. 2 Stereo Component Equalizer Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-6 (CANH) - I188-17 (CANL)

Cable disconnected from negative (-) battery terminal

1 MΩ or higher
OK

REPLACE NO. 2 STEREO COMPONENT EQUALIZER ASSEMBLY

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - NO. 2 STEREO COMPONENT EQUALIZER ASSEMBLY)

79.

CHECK FOR SHORT IN CAN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

(a) Disconnect the I5 combination meter assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Combination Meter Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-1 (CANH) - I188-12 (CANL)

Cable disconnected from negative (-) battery terminal

1 MΩ or higher
OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

80.

CHECK FOR OPEN IN CAN MAIN BUS LINES (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I173 central gateway ECU (network gateway ECU) connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

I173-30 (CA3H) - I173-29 (CA3L)

Cable disconnected from negative (-) battery terminal

108 to 132 Ω

*a

Front view of wire harness connector

(to Central Gateway ECU (Network Gateway ECU))
OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

NG

81.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

except G16E-GTS

A

for G16E-GTS

B
B

GO TO STEP 85

A

82.

CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Reconnect the I173 central gateway ECU (network gateway ECU) connector.

(b) Disconnect the I214 No. 15 CAN junction connector.

(c) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-3 (CANH) - I214-14 (CANL)

Cable disconnected from negative (-) battery terminal

108 to 132 Ω
NG

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))
OK

83.

CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Combination Meter Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I214-4 (CANH) - I214-15 (CANL)

Cable disconnected from negative (-) battery terminal

108 to 132 Ω
OK

REPLACE NO. 15 CAN JUNCTION CONNECTOR
NG

84.

CHECK FOR OPEN IN CAN MAIN BUS LINES (COMBINATION METER ASSEMBLY)

(a) Reconnect the I214 No. 15 CAN junction connector.

(b) Disconnect the I5 combination meter assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

I5-31 (CANH) - I5-14 (CANL)

Cable disconnected from negative (-) battery terminal

108 to 132 Ω

*a

Front view of wire harness connector

(to Combination Meter Assembly)
OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (COMBINATION METER ASSEMBLY - NO. 15 CAN JUNCTION CONNECTOR)

85.

CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Reconnect the I173 central gateway ECU (network gateway ECU) connector.

(b) Disconnect the I188 No. 15 CAN junction connector.

(c) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-2 (CANH) - I188-13 (CANL)

Cable disconnected from negative (-) battery terminal

108 to 132 Ω
NG

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 15 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))
OK

86.

CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 15 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

*a

Front view of wire harness connector

(to No. 15 CAN Junction Connector)

*b

to Combination Meter Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I188-1 (CANH) - I188-12 (CANL)

Cable disconnected from negative (-) battery terminal

108 to 132 Ω
OK

REPLACE NO. 15 CAN JUNCTION CONNECTOR
NG

87.

CHECK FOR OPEN IN CAN MAIN BUS LINES (COMBINATION METER ASSEMBLY)

(a) Reconnect the I188 No. 15 CAN junction connector.

(b) Disconnect the I5 combination meter assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

I5-31 (CANH) - I5-14 (CANL)

Cable disconnected from negative (-) battery terminal

108 to 132 Ω

*a

Front view of wire harness connector

(to Combination Meter Assembly)
OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (COMBINATION METER ASSEMBLY - NO. 15 CAN JUNCTION CONNECTOR)