Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000002B713 |
Model Year Start: 2023 |
Model: GR Corolla |
Prod Date Range: [03/2023 -
] |
Title: NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): U115C87; Lost Communication with ECM/PCM "A" (ch5) Missing Message; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [03/2023 - ] |
DTC
|
U115C87
|
Lost Communication with ECM/PCM "A" (ch5) Missing Message
|
DESCRIPTION
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
Note
|
U115C87
|
Lost Communication with ECM/PCM "A" (ch5) Missing Message
|
Communication stops between the brake actuator assembly and the ECM.
|
-
CAN main bus lines or connector
-
ECM
-
Brake actuator assembly
-
No. 11 can junction connector
|
DTC Output from
-
ECM
-
Brake actuator assembly
|
WIRING DIAGRAM
for M20A-FKS (CVT (K120))
for M20A-FKS (CVT (K121))
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
-
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 1 minute 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
-
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
-
Some parts must be initialized and set when replacing or removing and installing parts.
Click here
-
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
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
(a) Check vehicle type.
Result
|
Proceed to
|
except G16E-GTS
|
A
|
for G16E-GTS
|
B
|
A
|
|
|
2.
|
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.
*a
|
Component with harness connected
(No. 11 CAN Junction Connector)
|
-
|
-
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-2 (CANH) - A147-13 (CANL)
|
Cable disconnected from negative (-) battery terminal
|
Below 70 Ω
|
OK
|
|
|
3.
|
CHECK FOR SHORT IN CAN BUS LINES
|
(a) Measure the resistance according to the value(s) in the table below.
*a
|
Component with harness connected
(No. 11 CAN Junction Connector)
|
-
|
-
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-2 (CANH) - A147-13 (CANL)
|
Cable disconnected from negative (-) battery terminal
|
54 Ω or higher
|
OK
|
|
|
4.
|
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
(No. 11 CAN Junction Connector)
|
-
|
-
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-2 (CANH) - I26-16 (BAT)
|
Cable disconnected from negative (-) battery terminal
|
6 kΩ or higher
|
A147-13 (CANL) - I26-16 (BAT)
|
OK
|
|
|
5.
|
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
(No. 11 CAN Junction Connector)
|
-
|
-
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-2 (CANH) - I26-4 (CG)
|
Cable disconnected from negative (-)battery terminal
|
200 Ω or higher
|
A147-13 (CANL) - I26-4 (CG)
|
NG
|
|
|
6.
|
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY)
|
(a) Disconnect the A147 No. 11 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. 11 CAN Junction Connector)
|
*b
|
to Brake Actuator Assembly
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-2 (CANH) - I26-4 (CG)
|
Cable disconnected from negative (-) battery terminal
|
200 Ω or higher
|
A147-13 (CANL) - I26-4 (CG)
|
OK
|
|
|
7.
|
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 CAN JUNCTION CONNECTOR - ECM)
|
(a) Measure the resistance according to the value(s) in the table below.
*1
|
DLC3
|
-
|
-
|
*a
|
Front view of wire harness connector
(to No. 11 CAN Junction Connector)
|
*b
|
to ECM
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-1 (CANH) - I26-4 (CG)
|
Cable disconnected from negative (-) battery terminal
|
200 Ω or higher
|
A147-12 (CANL) - I26-4 (CG)
|
OK |
|
REPLACE NO. 11 CAN JUNCTION CONNECTOR
|
8.
|
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY)
|
(a) Disconnect the A51 brake actuator 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. 11 CAN Junction Connector)
|
*b
|
to Brake Actuator Assembly
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-2 (CANH) - I26-4 (CG)
|
Cable disconnected from negative (-) battery terminal
|
200 Ω or higher
|
A147-13 (CANL) - I26-4 (CG)
|
NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY)
|
9.
|
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 CAN JUNCTION CONNECTOR - ECM)
|
(a) Disconnect the A47 or A178 ECM 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. 11 CAN Junction Connector)
|
*b
|
to ECM
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-1 (CANH) - I26-4 (CG)
|
Cable disconnected from negative (-) battery terminal
|
200 Ω or higher
|
A147-12 (CANL) - I26-4 (CG)
|
NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 CAN JUNCTION CONNECTOR - ECM)
|
10.
|
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY)
|
(a) Disconnect the A147 No. 11 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. 11 CAN Junction Connector)
|
*b
|
to Brake Actuator Assembly
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-2 (CANH) - I26-16 (BAT)
|
Cable disconnected from negative (-) battery terminal
|
6 kΩ or higher
|
A147-13 (CANL) - I26-16 (BAT)
|
OK
|
|
|
11.
|
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 CAN JUNCTION CONNECTOR - ECM)
|
(a) Measure the resistance according to the value(s) in the table below.
*1
|
DLC3
|
-
|
-
|
*a
|
Front view of wire harness connector
(to No. 11 CAN Junction Connector)
|
*b
|
to ECM
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-1 (CANH) - I26-16 (BAT)
|
Cable disconnected from negative (-) battery terminal
|
6 kΩ or higher
|
A147-12 (CANL) - I26-16 (BAT)
|
OK |
|
REPLACE NO. 11 CAN JUNCTION CONNECTOR
|
12.
|
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY)
|
(a) Disconnect the A51 brake actuator 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. 11 CAN Junction Connector)
|
*b
|
to Brake Actuator Assembly
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-2 (CANH) - I26-16 (BAT)
|
Cable disconnected from negative (-) battery terminal
|
6 kΩ or higher
|
A147-13 (CANL) - I26-16 (BAT)
|
NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY)
|
13.
|
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 CAN JUNCTION CONNECTOR - ECM)
|
(a) Disconnect the A47 or A178 ECM 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. 11 CAN Junction Connector)
|
*b
|
to ECM
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-1 (CANH) - I26-16 (BAT)
|
Cable disconnected from negative (-) battery terminal
|
6 kΩ or higher
|
A147-12 (CANL) - I26-16 (BAT)
|
NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 CAN JUNCTION CONNECTOR - ECM)
|
14.
|
CHECK FOR SHORT IN CAN BUS LINES (NO. 11 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY)
|
(a) Disconnect the A147 No. 11 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. 11 CAN Junction Connector)
|
*b
|
to Brake Actuator Assembly
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-2 (CANH) - A147-13 (CANL)
|
Cable disconnected from negative (-) battery terminal
|
108 to 132 Ω
|
OK
|
|
|
15.
|
CHECK FOR SHORT IN CAN BUS LINES (NO. 11 CAN JUNCTION CONNECTOR - ECM)
|
(a) Measure the resistance according to the value(s) in the table below.
*a
|
Front view of wire harness connector
(to No. 11 CAN Junction Connector)
|
*b
|
to ECM
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-1 (CANH) - A147-12 (CANL)
|
Cable disconnected from negative (-) battery terminal
|
108 to 132 Ω
|
OK |
|
REPLACE NO. 11 CAN JUNCTION CONNECTOR
|
16.
|
CHECK FOR SHORT IN CAN BUS LINES (NO. 11 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY)
|
(a) Disconnect the A51 brake actuator assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
*a
|
Front view of wire harness connector
(to No. 11 CAN Junction Connector)
|
*b
|
to Brake Actuator Assembly
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-2 (CANH) - A147-13 (CANL)
|
Cable disconnected from negative (-) battery terminal
|
1 MΩ or higher
|
NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 11 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY)
|
17.
|
CHECK FOR SHORT IN CAN BUS LINES (NO. 11 CAN JUNCTION CONNECTOR - ECM)
|
(a) Disconnect the A47 or A178 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
*a
|
Front view of wire harness connector
(to No. 11 CAN Junction Connector)
|
*b
|
to ECM
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-1 (CANH) - A147-12 (CANL)
|
Cable disconnected from negative (-) battery terminal
|
1 MΩ or higher
|
NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 11 CAN JUNCTION CONNECTOR - ECM)
|
18.
|
CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 11 CAN JUNCTION CONNECTOR)
|
(a) Disconnect the A147 No. 11 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. 11 CAN Junction Connector)
|
*b
|
to Brake Actuator Assembly
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-2 (CANH) - A147-13 (CANL)
|
Cable disconnected from negative (-) battery terminal
|
108 to 132 Ω
|
OK
|
|
|
19.
|
CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 11 CAN JUNCTION CONNECTOR - ECM)
|
(a) Measure the resistance according to the value(s) in the table below.
*a
|
Front view of wire harness connector
(to No. 11 CAN Junction Connector)
|
*b
|
to ECM
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A147-1 (CANH) - A147-12 (CANL)
|
Cable disconnected from negative (-) battery terminal
|
108 to 132 Ω
|
OK |
|
REPLACE NO. 11 CAN JUNCTION CONNECTOR
|
20.
|
CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 11 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY)
|
(a) Reconnect the A147 No. 11 CAN junction connector.
(b) Disconnect the A51 brake actuator assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A51-11 (CA2H) - A51-25 (CA2L)
|
Cable disconnected from negative (-) battery terminal
|
108 to 132 Ω
|
|
|
*a
|
Front view of wire harness connector
(to Brake Actuator Assembly)
|
|
|
NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 11 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY)
|
(a) Check vehicle type.
Result
|
Proceed to
|
for CVT (K120)
|
A
|
for CVT (K121)
|
B
|
A
|
|
|
22.
|
CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 11 CAN JUNCTION CONNECTOR - ECM)
|
(a) Reconnect the A147 No. 11 CAN junction connector.
(b) Disconnect the A47 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A47-7 (CAN+) - A47-17 (CAN-)
|
Cable disconnected from negative (-) battery terminal
|
108 to 132 Ω
|
|
|
*a
|
Front view of wire harness connector
(to ECM)
|
|
|
NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 11 CAN JUNCTION CONNECTOR - ECM)
|
23.
|
CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 11 CAN JUNCTION CONNECTOR - ECM)
|
(a) Reconnect the A147 No. 11 CAN junction connector.
(b) Disconnect the A178 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
*a
|
Front view of wire harness connector
(to ECM)
|
-
|
-
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A178-6 (CACH) - A178-7 (CACL)
|
Cable disconnected from negative (-) battery terminal
|
108 to 132 Ω
|
NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 11 CAN JUNCTION CONNECTOR - ECM)
|
24.
|
CHECK FOR OPEN IN CAN MAIN BUS LINES
|
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the A140 brake actuator assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A140-16 (CA2H) - A140-17 (CA2L)
|
Cable disconnected from negative (-) battery terminal
|
Below 133 Ω
|
|
|
*a
|
Front view of wire harness connector
(to Brake Actuator Assembly)
|
|
|
OK
|
|
|
25.
|
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
|
A140-16 (CA2H) - A140-17 (CA2L)
|
Cable disconnected from negative (-) battery terminal
|
108 Ω or higher
|
|
|
*a
|
Front view of wire harness connector
(to Brake Actuator Assembly)
|
|
|
OK
|
|
|
26.
|
CHECK FOR SHORT TO +B IN CAN BUS LINE
|
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A140-16 (CA2H) - A140-14 (+BS)
|
Cable disconnected from negative (-) battery terminal
|
6 kΩ or higher
|
A140-17 (CA2L) - A140-14 (+BS)
|
|
|
*a
|
Front view of wire harness connector
(to Brake Actuator Assembly)
|
|
|
OK
|
|
|
27.
|
CHECK FOR SHORT TO GND IN CAN BUS LINE
|
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A140-16 (CA2H) - A140-1 (GND1)
|
Cable disconnected from negative (-)battery terminal
|
200 Ω or higher
|
A140-17 (CA2L) - A140-1 (GND1)
|
|
|
*a
|
Front view of wire harness connector
(to Brake Actuator Assembly)
|
|
|
OK
|
|
|
28.
|
CHECK FOR OPEN IN CAN MAIN BUS LINES (ECM)
|
(a) Reconnect the A140 brake actuator assembly connector.
(b) Disconnect the A139 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
*a
|
Front view of wire harness connector
(to ECM)
|
-
|
-
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A139-25 (CANU) - A139-26 (CAND)
|
Cable disconnected from negative (-) battery terminal
|
Below 133 Ω
|
OK
|
|
|
29.
|
CHECK FOR SHORT IN CAN BUS LINES (ECM - BRAKE ACTUATOR ASSEMBLY)
|
(a) Measure the resistance according to the value(s) in the table below.
*a
|
Front view of wire harness connector
(to ECM)
|
-
|
-
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A139-25 (CANU) - A139-26 (CAND)
|
Cable disconnected from negative (-) battery terminal
|
108 Ω or higher
|
OK
|
|
|
30.
|
CHECK FOR SHORT TO +B IN CAN BUS LINE (ECM - BRAKE ACTUATOR ASSEMBLY)
|
(a) Measure the resistance according to the value(s) in the table below.
*a
|
Front view of wire harness connector
(to ECM)
|
-
|
-
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A139-25 (CANU) - A139-1 (BATT)
|
Cable disconnected from negative (-) battery terminal
|
6 kΩ or higher
|
A139-26 (CAND) - A139-1 (BATT)
|
OK
|
|
|
31.
|
CHECK FOR SHORT TO GND IN CAN BUS LINE (BRAKE ACTUATOR ASSEMBLY - ECM)
|
(a) Measure the resistance according to the value(s) in the table below.
*a
|
Front view of wire harness connector
(to ECM)
|
-
|
-
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A139-25 (CANU) - A139-10 (E1)
|
Cable disconnected from negative (-) battery terminal
|
200 Ω or higher
|
A139-26 (CAND) - A139-10 (E1)
|
32.
|
CHECK FOR SHORT TO GND IN CAN BUS LINE (BRAKE ACTUATOR ASSEMBLY - ECM)
|
(a) Disconnect the A139 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A140-16 (CA2H) - A140-1 (GND1)
|
Cable disconnected from negative (-) battery terminal
|
200 Ω or higher
|
A140-17 (CA2L) - A140-1 (GND1)
|
|
|
*a
|
Front view of wire harness connector
(to Brake Actuator Assembly)
|
|
|
NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (BRAKE ACTUATOR ASSEMBLY - ECM)
|
33.
|
CHECK FOR SHORT TO +B IN CAN BUS LINE (BRAKE ACTUATOR ASSEMBLY - ECM)
|
(a) Disconnect the A139 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A140-16 (CA2H) - A140-14 (+BS)
|
Cable disconnected from negative (-) battery terminal
|
6 kΩ or higher
|
A140-17 (CA2L) - A140-14 (+BS)
|
|
|
*a
|
Front view of wire harness connector
(to Brake Actuator Assembly)
|
|
|
NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (BRAKE ACTUATOR ASSEMBLY - ECM)
|
34.
|
CHECK FOR SHORT IN CAN BUS LINES (BRAKE ACTUATOR ASSEMBLY - ECM)
|
(a) Disconnect the A139 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A140-16 (CA2H) - A140-17 (CA2L)
|
Cable disconnected from negative (-) battery terminal
|
1 MΩ or higher
|
|
|
*a
|
Front view of wire harness connector
(to Brake Actuator Assembly)
|
|
|
NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (BRAKE ACTUATOR ASSEMBLY - ECM)
|
35.
|
CHECK FOR OPEN IN CAN MAIN BUS LINES (BRAKE ACTUATOR ASSEMBLY)
|
(a) Disconnect the A139 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
*a
|
Front view of wire harness connector
(to Brake Actuator Assembly)
|
*b
|
Front view of wire harness connector
(to ECM)
|
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A140-16 (CA2H) - A139-25 (CANU)
|
Cable disconnected from negative (-) battery terminal
|
Below 1 Ω
|
A140-17 (CA2L) - A139-26 (CAND)
|
Cable disconnected from negative (-) battery terminal
|
Below 1 Ω
|
NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (ECM - BRAKE ACTUATOR ASSEMBLY)
|
|