Inspection Procedure

1. Check the DATA LIST for proper functioning of the door unlock detection switch.

   Body ECU: 

   DATA LIST REFERENCE CHART
   
   

   Item	Measurement Item/Display (Range)	Normal Condition	Diagnostic Note
   D DOR KEY SW-UL	Door key lock and unlock switch signal (Driver)/ON or OFF	ON: Door key is unlocked OFF: Door key is locked	-

OK: 

"ON" (door key switch is unlocked) appears on the screen. 

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 of the switch when the switch is operated.

   Resistance 

   RESISTANCE REFERENCE CHART
   
   

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

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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE FRONT DOOR LOCK ASSEMBLY LH 

OK: Go to Next Step 

1. Disconnect the D8 and H9 connectors.
2. Remove the body ECU from instrument panel J/B.
3. Measure the resistance of the switch when the switch is operated.

   Resistance 

   RESISTANCE REFERENCE CHART
   
   

   Tester Connection	Condition	Specified Condition
   10 (L2) - H9-9	Always	Below 1 Ω
   D8-8 (UL3) - H9-10	Always	Below 1 Ω
   H9-7 - Body ground	Always	Below 1 Ω

Fig 2: Identifying D8 And H9 Connectors

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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