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 power 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 power 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 z54*1 and S15*2 rear power seat module switch connectors.
HINT:
*1: w/o Ottoman
*2: w/ Ottoman
(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.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.




(b) Disconnect the z54*1 and S15*2 rear power seat module switch connectors.
HINT:
*1: w/o Ottoman
*2: w/ Ottoman
(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