CAN Communication System

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: U0210: Lost Communication with "Seat Control Module C"

DTC U0210 - Lost Communication with "Seat Control Module C"

DESCRIPTION





HINT: For vehicles with rear power seat control system or seat heater system and rear power seat control system (W/ Ottoman).

WIRING DIAGRAM









INSPECTION PROCEDURE

PROCEDURE

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
(a) Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and the branch wire.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
NOTICE:
- After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.
- When disconnecting the cable, some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.

NEXT -- Continue to next step.

2. CHECK FOR OPEN IN CAN BUS WIRE (REAR POWER SEAT MODULE SWITCH BRANCH WIRE)




(a) Disconnect the r2 and S15 rear power seat module switch connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:

W/O Ottoman





W/ Ottoman





NG -- REPAIR OR REPLACE REAR POWER SEAT MODULE SWITCH BRANCH WIRE OR CONNECTOR (CANP, CANN)
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (REAR POWER SEAT MODULE SWITCH - BATTERY AND BODY GROUND)
(a) Connect the cable to the negative (-) battery terminal.
NOTE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.




(b) Disconnect the r2 or S15 rear power seat module switch connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:

W/O Ottoman





W/ Ottoman





(d) Measure the voltage according to the value(s) in the table below.
Standard voltage:

W/O Ottoman





W/ Ottoman





Result





C -- REPAIR OR REPLACE HARNESS OR CONNECTOR
B -- REPLACE REAR POWER SEAT MODULE SWITCH
A -- REPLACE REAR POWER SEAT MODULE SWITCH