Inspection Procedure

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

   Standard resistance 

   Fig 1: Inspecting Unlock Warning Switch Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TESTER CONNECTION SPECIFIED CONDITION
   
   

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

NG : REPLACE UNLOCK WARNING SWITCH ASSEMBLY 

OK : Go to Next Step 

1. Disconnect the U1 switch connector.
2. Disconnect the D4 relay connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   Fig 2: Identifying U1 Switch And D4 Relay Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   U1-2 - D4-8 (KSW)	Below 1 Ω
   U1-1 - Body ground	Below 1 Ω

NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK : Go to Next Step 

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

   Standard resistance 

   Fig 3: Inspecting Front Door Courtesy Light Switch Assembly (Driver Side)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Switch Condition	Specified Condition
   1 - Body ground	Not pushed	Below 1 Ω
   1 - Body ground	Pushed	10 kΩ or higher

NG : REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (DRIVER SIDE) 

OK : Go to Next Step 

1. Disconnect the D5 switch connector.
2. Disconnect the D4 relay connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   Fig 4: Identifying D5 Switch And D4 Relay Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   D5-1 - D4-5 (DCTY)	Below 1 Ω

NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK : Go to Next Step 

REPLACE DOOR CONTROL RELAY ASSEMBLY