Inspection Procedure

1. Remove the courtesy light switch.
2. Measure the resistance of the switch.

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   1 - Body ground	Nor pushed (ON)	Below 1 Ω
   1 - Body ground	Pushed (OFF)	10 kΩ or higher

Fig 1: Identifying Courtesy Light Switch
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE FRONT DOOR COURTESY LIGHT SWITCH 

OK: Go to next step 

1. Disconnect the D9 switch connector.
2. Disconnect the C6 meter connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Specified Condition
   D9-1 - C6-8	Below 1 Ω

Fig 2: Identifying D9 Switch Connector And C6 Meter Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: Go to next step 

1. Remove the unlock warning switch.
2. Measure the resistance of the switch.

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   1-2	Not pushed	10 kΩ or higher
   1-2	Pushed	Below 1 Ω

Fig 3: Identifying Unlock Warning Switch
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE UNLOCK WARNING SWITCH ASSEMBLY 

OK: Go to next step 

1. Disconnect the U1 switch connector.
2. Disconnect the C6 meter connector.
3. Measurer the resistance of the wire harness side connectors.

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Specified Condition
   U1-2 - C6-7	Below 1 Ω
   U1-1 - Body ground	Below 1 Ω

Fig 4: Identifying U1 Switch Connector And C6 Meter Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPLACE COMBINATION METER ASSEMBLY