Inspection Procedure

1. Check the DATA LIST to ensure proper function of the door unlock detection switch.

   MAIN BODY: 

   DATA LIST CHART
   
   

   Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
   DOR KEY SW-LOCK	Driver door lock/unlock switch lock signal (key-linked lock switch) /ON or OFF	ON: Driver side door key cylinder is turned to LOCK OFF: Driver side door key cylinder is not turned to LOCK	-
   DOR KEY SW-ULCK	Driver door lock/unlock switch unlock signal (key-linked unlock switch) /ON or OFF	ON: Driver side door key cylinder is turned to UNLOCK OFF: Driver side door key cylinder is not turned to UNLOCK	-

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

NG: Go to step 2 

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

1. Remove the front door lock assembly LH.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   7 - 9	ON (Door lock set to LOCK)	Below 1 Ω
   7 - 9 7 - 10	OFF (Free)	10 kΩ or higher
   7 - 10	ON (Door lock set to UNLOCK)	Below 1 Ω

Fig 1: Inspecting Front Door Lock Assembly (Door Key Lock And Unlock Switch)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE FRONT DOOR LOCK ASSEMBLY 

OK: Go to Next Step 

1. Disconnect the front door lock assembly LH connector.
   Fig 2: Checking Wire Harness (Front Door Lock Assembly - Main Body ECU)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the main body ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection (Symbols)	Condition	Specified Condition
   I2-9 (L) - DK-16	Always	Below 1 Ω
   12-10 (UL)-E61-10(UL3)	Always	Below 1 Ω
   I2-7 (E) - Body ground	Always	Below 1 Ω
   12-9 (L) - Body ground	Always	10 kΩ or higher
   12-10 (UL) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MAIN BODY ECU