Check Rear Seat Control Unit Power Supply and Ground Circuit

HEATED SEAT


Check Rear Seat Control Unit Power Supply and Ground Circuit

1.CHECK REAR SEAT CONTROL UNIT POWER SUPPLY CIRCUIT (BAT)
1. Turn ignition switch OFF.





2. Check voltage between rear seat control unit connector and ground.





OK or NG
OK - GO TO 2.
NG - Repair or replace harness between circuit breaker and rear seat control unit.
2.CHECK REAR SEAT CONTROL UNIT POWER SUPPLY CIRCUIT (IGN)
1. Turn ignition switch ON.





2. Check voltage between rear seat control unit connector and ground.





OK or NG
OK - GO TO 4.
NG - GO TO 3.
3.CHECK REAR SEAT CONTROL UNIT HARNESS
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R (heated seat relay) and rear seat control unit connector.





3. Check continuity between IPDM E/R (heated seat relay) connector and rear seat control unit connector.





4. Check continuity between rear seat control unit connector and ground.





OK or NG
OK - GO TO 4.
NG - Repair or replace harness between rear seat control unit and IPDM E/R (heated seat relay).
4.CHECK REAR SEAT CONTROL UNIT GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear seat control unit connector.





3. Check continuity between rear seat control unit connector and ground.





OK or NG
OK - Rear seat control unit power supply and ground circuit is OK.
NG - Repair or replace harness between rear seat control unit and ground.