Diagnosis Procedure

CLIMATE CONTROLLED SEAT SWITCH


Description

Provides inputs to the climate controlled seat control unit for climate controlled seat operation.




CLIMATE CONTROLLED SEAT SWITCH


Diagnosis Procedure

Regarding Wiring Diagram information, Climate Controlled Seat Control Unit.
1.CHECK CLIMATE CONTROLLED SEAT SWITCH
Perform climate controlled seat switch component inspection. Component Inspection.
Is the inspection result normal?
YES - GO TO 2.
NO - Replace climate controlled seat switch.
2.CHECK CLIMATE CONTROLLED SEAT SWITCH POWER SUPPLY CIRCUIT





1. Turn ignition switch OFF.
2. Disconnect climate controlled seat switch connector and climate controlled seat control unit connector B216.
3. Check continuity between climate controlled seat switch connector M302 (A) terminal 1 and climate controlled seat control unit connector B216 (B) terminal 24.






4. Check continuity between climate controlled seat switch connector M302 (A) terminal 1 and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair harness or connectors.
3.CHECK CLIMATE CONTROLLED SEAT SWITCH COOL CIRCUIT





1. Disconnect climate controlled seat control unit connector B212.
2. Check continuity between climate controlled seat switch connector M302 (A) terminal 2 and climate controlled seat control unit connector B212 (B) terminal 9.





3. Check continuity between climate controlled seat switch connector M302 (A) terminal 2 and ground.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair harness or connectors.
4.CHECK CLIMATE CONTROLLED SEAT SWITCH HEAT CIRCUIT





1. Check continuity between climate controlled seat switch connector M302 (A) terminal 3 and climate controlled seat control unit connector B212 (B) terminal 1.





2. Check continuity between climate controlled seat switch connector M302 (A) terminal 3 and ground.





Is the inspection result normal?
YES - Replace climate controlled seat control unit.
NO - Repair harness or connectors.