- Sub bus 1 circuit
- Main body ECU (multiplex network body ECU) main wire or connector
- Junction terminal main wire or connector
- Outer mirror control ECU Assembly LH branch wire or connector*1
- Outer mirror control ECU Assembly RH branch wire or connector*1
- Power back door unit assembly (back door ECU) branch wire or connector*2
- Front power seat switch LH branch wire or connector*1
- Slide door motor unit LH branch wire or connector*3
- Slide door motor unit RH branch wire or connector*3
- Main body ECU (multiplex network body ECU)
- No. 1 Junction terminal
- Outer mirror control ECU Assembly LH*1
- Outer mirror control ECU Assembly RH*1
- Power back door unit assembly (back door ECU)*2
- Front power seat switch LH*1
- Slide door motor unit LH*3
- Slide door motor unit RH*3
- Instrument panel junction block assembly
- No. 1 CAN junction connector
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM1000000018DNX |
| Model Year Start: 2018 | Model: Sienna | Prod Date Range: [11/2017 - 08/2018] |
| Title: NETWORKING: CAN COMMUNICATION SYSTEM: U1002; Lost Communication with Gateway Module; 2018 MY Sienna [11/2017 - 08/2018] | ||
|
DTC |
U1002 |
Lost Communication with Gateway Module |
DESCRIPTION
If 2 or more DTCs are output during the DTC check, one side of the CAN branch wire may be open (One side of the CANH (branch wire)/CANL (branch wire) of the ECU and/or sensor is open).
|
DTC Code |
Symptom |
Trouble Area |
|---|---|---|
|
U1002 |
Lost communication with the gateway module (main body ECU). |
|
- *1: w/ Seat Position Memory System
- *2: w/ Power Back Door
- *3: w/ Power Slide Door
WIRING DIAGRAM
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.
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![2018 - 2020 MY Sienna [11/2017 - ]; NETWORKING: CAN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
- Before measuring the resistance of the CAN bus, turn the engine 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 turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
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-
Some parts must be initialized and set when replacing or removing and installing parts.
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-
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.
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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 CAN BUS WIRE (MAIN WIRE FOR DISCONNECTION, BUS LINE FOR SHORT CIRCUIT) |
(a) Disconnect the cable from the negative (-) battery terminal.
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
Text in Illustration
Result
|
|
| B |
|
| C |
|
|
|
2. |
CHECK FOR OPEN IN MAIN BUS WIRE (NO. 1 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
|
(a) Disconnect the No. 1 CAN junction connector connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D120-1 (CANH) - D120-2 (CANL) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
Text in Illustration
|
*a |
Rear view of wire harness connector (to No. 1 CAN Junction Connector) |
| NG |
|
|
|
3. |
CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 1 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION TERMINAL) |
|
(a) Disconnect the No. 1 CAN junction connector connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D117-1 (CANH) - D117-2 (CANL) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
Text in Illustration
|
*a |
Rear view of wire harness connector (to No. 1 CAN Junction Connector) |
| OK |
|
REPAIR OR REPLACE NO. 1 CAN JUNCTION CONNECTOR |
| NG |
|
|
4. |
CONNECT CONNECTOR |
(a) Reconnect the D120 No. 1 CAN junction connector connector.
|
|
5. |
CHECK FOR OPEN IN CAN BUS MAIN WIRE (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - NO. 1 CAN JUNCTION CONNECTOR) |
|
(a) Disconnect the main body ECU (multiplex network body ECU) connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D14-9 (CANP) - D14-10 (CANN) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
Text in Illustration
|
*a |
Front view of wire harness connector (to Main Body ECU (Multiplex Network Body ECU)) |
| OK |
|
| NG |
|
REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
|
6. |
CONNECT CONNECTOR |
(a) Reconnect the D117 and D120 No. 1 CAN junction connector connectors.
|
|
7. |
CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 1 CAN JUNCTION TERMINAL - NO. 1 CAN JUNCTION CONNECTOR) |
|
(a) Disconnect the No. 1 CAN junction terminal connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D183-3 (CANH) - D183-2 (CANL) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
Text in Illustration
|
*a |
Front view of wire harness connector (to No. 1 CAN Junction Terminal) |
| OK |
|
REPLACE NO. 1 CAN JUNCTION TERMINAL |
| NG |
|
REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO NO. 1 CAN JUNCTION TERMINAL |
|
8. |
CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION TERMINAL) |
|
(a) Disconnect the No. 1 CAN junction connector connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D117-1 (CANH) - D117-2 (CANL) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
|
D117-1 (CANH) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D117-2 (CANL) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D117-1 (CANH) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
D117-2 (CANL) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Rear view of wire harness connector (to No. 1 CAN Junction Connector) |
| NG |
|
|
|
9. |
CONNECT CONNECTOR |
(a) Reconnect the D117 No. 1 CAN junction connector connector.
|
|
10. |
CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - OUTER MIRROR CONTROL ECU ASSEMBLY RH) |
HINT:
For vehicle without seat position memory system, go to step 14.
|
(a) Disconnect the No. 1 CAN junction connector connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D118-1 (CANH) - D118-2 (CANL) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D118-1 (CANH) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D118-2 (CANL) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D118-1 (CANH) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
D118-2 (CANL) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Rear view of wire harness connector (to No. 1 CAN Junction Connector) |
| NG |
|
|
|
11. |
CONNECT CONNECTOR |
(a) Reconnect the D118 No. 1 CAN junction connector connector.
|
|
12. |
CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - SLIDE DOOR MOTOR UNIT RH) |
HINT:
For vehicle without power slide door, go to step 16.
|
(a) Disconnect the No. 1 CAN junction connector connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D119-1 (CANH) - D119-2 (CANL) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D119-1 (CANH) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D119-2 (CANL) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D119-1 (CANH) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
D119-2 (CANL) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Rear view of wire harness connector (to No. 1 CAN Junction Connector) |
| NG |
|
|
|
13. |
CONNECT CONNECTOR |
(a) Reconnect the D119 No. 1 CAN junction connector connector.
|
|
14. |
CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - FRONT POWER SEAT SWITCH LH) |
HINT:
For vehicle without seat position memory system, go to step 18.
|
(a) Disconnect the No. 1 CAN junction connector connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D121-1 (CANH) - D121-2 (CANL) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D121-1 (CANH) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D121-2 (CANL) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D121-1 (CANH) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
D121-2 (CANL) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Rear view of wire harness connector (to No. 1 CAN Junction Connector) |
| NG |
|
|
|
15. |
CONNECT CONNECTOR |
(a) Reconnect the D121 No. 1 CAN junction connector connector.
|
|
16. |
CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - POWER BACK DOOR UNIT ASSEMBLY (BACK DOOR ECU)) |
HINT:
For vehicle without power back door, go to step 20.
|
(a) Disconnect the No. 1 CAN junction connector connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D122-1 (CANH) - D122-2 (CANL) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D122-1 (CANH) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D122-2 (CANL) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D122-1 (CANH) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
D122-2 (CANL) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Rear view of wire harness connector (to No. 1 CAN Junction Connector) |
| NG |
|
|
|
17. |
CONNECT CONNECTOR |
(a) Reconnect the D122 No. 1 CAN junction connector connector.
|
|
18. |
CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - SLIDE DOOR MOTOR UNIT LH) |
HINT:
For vehicle without power slide door, go to step 22.
|
(a) Disconnect the No. 1 CAN junction connector connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D123-1 (CANH) - D123-2 (CANL) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D123-1 (CANH) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D123-2 (CANL) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D123-1 (CANH) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
D123-2 (CANL) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Rear view of wire harness connector (to No. 1 CAN Junction Connector) |
| NG |
|
|
|
19. |
CONNECT CONNECTOR |
(a) Reconnect the D123 No. 1 CAN junction connector connector.
|
|
20. |
CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - OUTER MIRROR CONTROL ECU ASSEMBLY LH) |
HINT:
For vehicle without seat position memory system, go to step 24.
|
(a) Disconnect the No. 1 CAN junction connector connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D124-1 (CANH) - D124-2 (CANL) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D124-1 (CANH) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D124-2 (CANL) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D124-1 (CANH) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
D124-2 (CANL) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Rear view of wire harness connector (to No. 1 CAN Junction Connector) |
| NG |
|
|
|
21. |
CONNECT CONNECTOR |
(a) Reconnect the D124 No. 1 CAN junction connector connector.
|
|
22. |
CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
|
(a) Disconnect the No. 1 CAN junction connector connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D120-1 (CANH) - D120-2 (CANL) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
|
D120-1 (CANH) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D120-2 (CANL) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D120-1 (CANH) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
D120-2 (CANL) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Rear view of wire harness connector (to No. 1 CAN Junction Connector) |
| OK |
|
REPAIR OR REPLACE NO. 1 CAN JUNCTION CONNECTOR |
| NG |
|
|
23. |
CONNECT CONNECTOR |
(a) Reconnect the D117 No. 1 CAN junction connector connector.
|
|
24. |
CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION TERMINAL) |
|
(a) Disconnect the No. 1 CAN junction terminal connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D183-3 (CANH) - D183-2 (CANL) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
|
D183-3 (CANH) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D183-2 (CANL) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D183-3 (CANH) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
D183-2 (CANL) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Front view of wire harness connector (to No. 1 CAN Junction Terminal) |
| OK |
|
REPLACE NO. 1 CAN JUNCTION TERMINAL |
| NG |
|
REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO NO. 1 CAN JUNCTION TERMINAL (CAN-H, CAN-L) |
|
25. |
CONNECT CONNECTOR |
(a) Reconnect the D118 No. 1 CAN junction connector connector.
|
|
26. |
CHECK FOR SHORT IN CAN BUS WIRES (OUTER MIRROR CONTROL ECU ASSEMBLY RH) |
|
(a) Disconnect the outer mirror control ECU assembly RH connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G3-9 (CANP) - G3-8 (CANN) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
|
G3-9 (CANP) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
G3-8 (CANN) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
G3-9 (CANP) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
G3-8 (CANN) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Front view of wire harness connector (to Outer Mirror Control ECU Assembly RH) |
| OK |
|
| NG |
|
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO OUTER MIRROR CONTROL ECU ASSEMBLY RH (CAN-H, CAN-L) |
|
27. |
CONNECT CONNECTOR |
(a) Reconnect the D119 No. 1 CAN junction connector connector.
|
|
28. |
CHECK FOR SHORT IN CAN BUS WIRES (SLIDE DOOR MOTOR UNIT RH) |
|
(a) Disconnect the slide door motor unit RH connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I8-8 (MPX1) - I8-2 (MPX2) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
|
I8-8 (MPX1) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
I8-2 (MPX2) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
I8-8 (MPX1) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
I8-2 (MPX2) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Front view of wire harness connector (to Slide Door Motor Unit RH) |
| OK |
|
| NG |
|
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SLIDE DOOR MOTOR UNIT RH (CAN-H, CAN-L) |
|
29. |
CONNECT CONNECTOR |
(a) Reconnect the D121 No. 1 CAN junction connector connector.
|
|
30. |
CHECK FOR SHORT IN CAN BUS WIRES (FRONT POWER SEAT SWITCH LH) |
|
(a) Disconnect the front power seat switch LH connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
Y9-8 - Y9-7 |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
|
Y9-8 - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
Y9-7 - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
Y9-8 - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
Y9-7 - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Front view of wire harness connector (to Front Power Seat Switch LH) |
| OK |
|
| NG |
|
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO FRONT POWER SEAT SWITCH LH (CAN-H, CAN-L) |
|
31. |
CONNECT CONNECTOR |
(a) Reconnect the D122 No. 1 CAN junction connector connector.
|
|
32. |
CHECK FOR SHORT IN CAN BUS WIRES (POWER BACK DOOR UNIT ASSEMBLY (BACK DOOR ECU)) |
|
(a) Disconnect the power back door unit assembly (back door ECU) connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
K14-6 (CANP) - K14-5 (CANN) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
|
K14-6 (CANP) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
K14-5 (CANN) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
K14-6 (CANP) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
K14-5 (CANN) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Front view of wire harness connector (to Power Back Door Unit Assembly (Back Door ECU)) |
| OK |
|
| NG |
|
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO POWER BACK DOOR UNIT ASSEMBLY (BACK DOOR ECU) (CAN-H, CAN-L) |
|
33. |
CONNECT CONNECTOR |
(a) Reconnect the D123 No. 1 CAN junction connector connector.
|
|
34. |
CHECK FOR SHORT IN CAN BUS WIRES (SLIDE DOOR MOTOR UNIT LH) |
|
(a) Disconnect the slide door motor unit LH connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
J9-11 (MPX1) - J9-5 (MPX2) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
|
J9-11 (MPX1) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
J9-5 (MPX2) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
J9-11 (MPX1) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
J9-5 (MPX2) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Front view of wire harness connector (to Slide Door Motor Unit LH) |
| OK |
|
| NG |
|
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SLIDE DOOR MOTOR UNIT LH (CAN-H, CAN-L) |
|
35. |
CONNECT CONNECTOR |
(a) Reconnect the D124 No. 1 CAN junction connector connector.
|
|
36. |
CHECK FOR SHORT IN CAN BUS WIRES (OUTER MIRROR CONTROL ECU ASSEMBLY LH) |
|
(a) Disconnect the outer mirror control ECU assembly LH connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
H2-9 (CANP) - H2-8 (CANN) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
|
H2-9 (CANP) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
H2-8 (CANN) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
H2-9 (CANP) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
H2-8 (CANN) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Front view of wire harness connector (to Outer Mirror Control ECU Assembly LH) |
| OK |
|
| NG |
|
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO OUTER MIRROR CONTROL ECU ASSEMBLY LH (CAN-H, CAN-L) |
|
37. |
CONNECT CONNECTOR |
(a) Reconnect the D120 No. 1 CAN junction connector connector.
|
|
38. |
CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
|
(a) Disconnect the main body ECU (multiplex network body ECU) connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D14-9 (CANP) - D14-10 (CANN) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
|
D14-9 (CANP) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D14-10 (CANN) - D16-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
|
D14-9 (CANP) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
|
D14-10 (CANN) - D16-16 (BAT) |
Cable disconnected from negative (-) battery terminal |
6 kΩ or higher |
Text in Illustration
|
*1 |
DLC3 |
|
*a |
Front view of wire harness connector (to Main Body ECU (Multiplex Network Body ECU)) |
| OK |
|
| NG |
|
REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (CAN-H, CAN-L) |
|
39. |
CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - POWER SOURCE) |
|
(a) Disconnect the instrument panel junction block assembly connectors. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
2D-28 - Body ground |
Cable disconnected from negative (-) battery terminal |
Below 1 Ω |
(c) Reconnect the cable to the negative (-) battery terminal.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See page
).
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
2K-1 - Body ground |
Always |
11 to 14 V |
Text in Illustration
|
*a |
Front view of wire harness connector (to Instrument Panel Junction Block Assembly) |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
40. |
INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
(a) Remove the instrument panel junction block assembly (See page
).
(b) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly (See page
).
(c) Measure the resistance according to the value(s) in the table below.
Text in Illustration
|
*a |
Component without harness connected (Instrument Panel Junction Block Assembly) |
- |
- |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
2K-1 - 2I-31 (ALTB) |
Always |
Below 1 Ω |
|
2D-28 - 2I-11 (GND1) |
Always |
Below 1 Ω |
| OK |
|
| NG |
|
|
|