Door Control Switch Circuit: Wiring Diagram

1. Check the DATA LIST to ensure proper function of the front passenger door lock switch.

   BODY (Body ECU): 

   DATA LIST REFERENCE CHART
   
   

   Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
   D/L SW-LOCK	Door lock switch signal /ON or OFF	ON: Door lock switch is pushed to LOCK position OFF: Door lock switch is not pushed to LOCK position	-
   D/L SW-UNLOCK	Door unlock switch signal /ON or OFF	ON: Door lock switch is pushed to UNLOCK position OFF: Door lock switch is not pushed to UNLOCK position	-

   OK: The display is as specified in the normal condition. 

NG : Go to step 2 

OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

1. Remove the door control switch assembly.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   2 - 3	Lock	Below 1 Ω
   2 - 3 1 - 2	OFF (Free)	10 kΩ or higher
   1 - 2	Unlock	Below 1 Ω

NG : REPLACE DOOR CONTROL SWITCH ASSEMBLY 

Fig 2: Inspecting Door Control Switch Assembly

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : GO TO NEXT STEP 

1. Disconnect the door control switch assembly connector.
2. Disconnect the instrument panel J/B connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   D12-3 - 1J-3	Always	Below 1 Ω
   D12-1 - 1J-4	Always	Below 1 Ω
   D12-2 - Body ground	Always	Below 1 Ω

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 3: Identifying Door Control Switch Assembly - Instrument Panel J/B Connectors Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE