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
   D LOCK POS SW	Driver side door unlock detection switch signal / ON or OFF	ON: Driver side door is unlocked OFF: Driver side door is locked	-

   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	Measurement Condition	Door Lock Condition	Specified Condition
   7 - 8	Battery positive (+) → Terminal 4 Battery negative (-) → Terminal 1	Lock	10 kΩ or higher
   7 - 8	Battery positive (+) → Terminal 1 Battery negative (-) → Terminal 4	Unlock	Below 1 Ω

Fig 1: Inspecting Front Door Lock Assembly (Door Unlock Detection 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.
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
   I2-8 (LSSR) - E61-9 (LSWD)	Always	Below 1 Ω
   I2-8 (LSSR) - Body ground	Always	10 kΩ or higher
   I2-7 (E) - Body ground	Always	Below 1 Ω

Fig 2: Checking Wire Harness (Front Door Lock Assembly - Main Body ECU)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MAIN BODY ECU