Check Climate Controlled Seat Switch Circuit

1. Turn ignition switch OFF.
2. Disconnect climate controlled seat switch connector.
3. Check continuity between climate controlled seat switch.
   CONTINUITY SPECIFICATION
   
   

   Climate controlled seat switch connector	Terminal		Condition		Continuity
   B430 (driver side) B429 (passenger side)	1	3	Climate controlled seat switch	HEAT	Yes
   			Other than above.		No
   		2	Climate controlled seat switch	COOL	Yes
   			Other than above.		No

   *: Driver side

OK or NG 

OK: GO TO 2.

NG: Replace climate controlled seat switch.

Fig 1: Checking Continuity Between Climate Controlled Seat Switch

1. Disconnect climate controlled seat control unit connector.
2. Check continuity between climate controlled seat control unit connector and climate controlled seat switch connector.
   • Driver side
     CONTINUITY SPECIFICATION
     
     

     A		B		Continuity
     Climate controlled seat control unit connector	Terminal	Climate controlled seat switch connector	Terminal
     B283	10	B430	3	Yes
     	20		2

   • Passenger side
     CONTINUITY SPECIFICATION
     
     

     A		C		Continuity
     Climate controlled seat control unit connector	Terminal	Climate controlled seat switch connector	Terminal
     B293	10	B429	3	Yes
     	20		2

3. Check continuity between climate controlled seat control unit connector and ground.
   Fig 2: Checking Continuity Between Climate Controlled Seat Control Unit And Climate Controlled Seat Switch Connector

   
   CONTINUITY SPECIFICATION
   
   

   A		Ground	Continuity
   Climate controlled seat control unit connector	Terminal
   B283 (driver side) B293 (passenger side)	10		No
   	20

OK or NG 

OK: Replace climate controlled seat control unit.

NG: Repair or replace harness between climate controlled seat control unit and climate controlled seat switch.