Driver Side Door UNLOCK Detection Switch Circuit: Procedure

1. Check the Data List to ensure proper function of the door unlock detection switch.
   MASTER SWITCH
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Door Unlock Detection SW	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.

NG → See step   2 

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

1. Remove the front door lock assembly.
   Fig 1: Identifying Front Door Lock Assembly & Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

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

NG → REPLACE FRONT DOOR LOCK ASSEMBLY 

OK: Go to next step 

1. Disconnect the front door lock assembly connector.
   Fig 2: Identifying Front Door Lock Assembly & Multiplex Network Master Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the multiplex network master switch assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   D10-8 (LSSR) - P22-16 (LSW)	Always	Below 1 Ω
   D10-7 (E) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

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