Rear Seat Heater does not Operate Through Front Switch: Procedure

1. Use the Data List to check if the rear sunshade switch is functioning properly.
   CENTER CONSOLE SWITCH
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Rear Seat Heater Main Switch	Rear seat heater main switch signal/ON or OFF	ON: Rear seat heater main switch ON OFF: Rear seat heater main switch OFF	-

   OK

   On screen, each item changes between ON and OFF according to above chart.

NG → See step   2 

OK → REPLACE COMBINATION SWITCH ASSEMBLY (NO. 1 CONSOLE SWITCH) 

1. Disconnect the No. 2 console switch connector.
   Fig 1: Identifying No. 2 Console Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Switch Condition	Specified Condition
   6 - 8	Rear seat heater main switch is pushed	Below 200 Ω
   6 - 8	Rear seat heater main switch is not pushed	10 kΩ or higher

NG → See step   3 

OK → REPLACE COMBINATION SWITCH ASSEMBLY (NO. 1 CONSOLE SWITCH)