Climate Controlled Seat Switch

CLIMATE CONTROLLED SEAT SWITCH

Description

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


Component Function Check


1. CHECK CLIMATE CONTROLLED SEAT SWITCH FUNCTION

Turn the climate controlled seat switch to the H (Heat) LO, MED, and HI positions and the C (Cool) LO, MED, and HI positions. Check that the climate controlled seat operates at low, medium and high heat, and low, medium and high cool.
Is the inspection result normal?
YES- Climate controlled seat switch function is OK.
NO- .


Diagnosis Procedure

Regarding Wiring Diagram information, Climate Controlled Seat.

1. CHECK CLIMATE CONTROLLED SEAT SWITCH

Perform climate controlled seat switch 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.


Component Inspection (Climate Controlled Seat Switch)


1. CHECK CLIMATE CONTROLLED SEAT SWITCH

1.Disconnect climate controlled seat switch connector.
2.Check continuity between climate controlled seat switch terminals.






Is the inspection result normal?
YES- Inspection End.
NO- Replace climate controlled seat switch. Exploded View With Climate Controlled Seats.