U0208

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT
Operating the ignition switch, any other switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

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.

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 front power seat control ECU and switch LH connector.

(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 Disassembly