U0208

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: U0208: Lost Communication with "Seat Control Module A"

DTC U0208 - Lost Communication with "Seat Control Module A"

DESCRIPTION





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.

NOTE: After the ignition switch is turned OFF, the navigation system requires approximately 90 seconds to record various types of memory and settings. As a result, after turning the ignition switch OFF, wait 90 seconds or more before disconnecting the cable from the negative (-) battery terminal.

NEXT -- Continue to next step.
2. CHECK FOR OPEN IN CAN BUS WIRE (FRONT POWER SEAT CONTROL ECU AND SWITCH LH BRANCH WIRE)





(a) Disconnect the Z10 front power seat control ECU and switch LH connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NG -- REPAIR OR REPLACE FRONT POWER SEAT CONTROL ECU AND SWITCH LH BRANCH WIRE OR CONNECTOR (CANH, CANL)
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT CONTROL ECU AND SWITCH LH - BATTERY AND BODY GROUND)
(a) Reconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and the branch wire.





(b) Disconnect the Z9 and Z10 front power seat control ECU and switch LH connectors.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:





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





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY