Check Climate Controlled Seat Control Unit Power Supply and Ground Circuit

CLIMATE CONTROLLED SEAT


Check Climate Controlled Seat Control Unit Power Supply and Ground Circuit

1.CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT POWER SUPPLY CIRCUIT
1. Disconnect climate controlled seat control unit connector.
2. Turn ignition switch ON.





3. Check voltage between climate controlled seat control unit connector and ground.





OK or NG
OK - GO TO 6.
NG - GO TO 2.
2.CHECK FUSE
- Check 15A fuse [No. 42, located in fuse, fusible link and relay unit] (Driver side)
- Check 15A fuse [No. 41, located in fuse, fusible link and relay unit] (Passenger side)

NOTE:
Refer to Climate Controlled Seat.
OK or NG
OK - GO TO 3.
NG - If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to Schematic.
3.CHECK CLIMATE CONTROLLED SEAT RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat relay.





3. Check voltage between climate controlled seat relay connector and ground.





OK or NG
OK - GO TO 4.
NG - Repair or replace harness between climate controlled seat relay and ground.
4.CHECK CLIMATE CONTROLLED SEAT RELAY





Check continuity climate controlled seat relay.





OK or NG
OK - GO TO 5.
NG - Replace climate controlled seat relay.
5.CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT HARNESS CIRCUIT





1. Check continuity between climate controlled seat control unit connector and climate controlled seat relay connector.





2. Check continuity between climate controlled seat control unit connector and ground.





OK or NG
OK - Check the condition of the harness and connector.
NG - Repair or replace harness between climate controlled seat control unit and climate controlled seat relay.
6.CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT GROUND CIRCUIT





Check continuity between climate controlled seat control unit connector and ground.





OK or NG
OK - Climate controlled seat control unit power supply and ground circuit is OK.
NG - Repair or replace harness between climate controlled seat control unit and ground.