Inspection Procedure

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

   MASTER SW (Multiplex Network Master Switch Assembly): 

   MASTER SW (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY)
   
   

   Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
   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 

   FRONT DOOR LOCK ASSEMBLY (DOOR UNLOCK DETECTION SWITCH) RESISTANCE
   
   

   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: Identifying Front Door Lock Assembly

   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 multiplex network master switch assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   WIRE HARNESS (FRONT DOOR LOCK ASSEMBLY - MULTIPLEX NETWORK MASTER SWITCH)
   
   

   Tester Connection (Symbols)	Condition	Specified Condition
   M2-8 (LSSR) - M7-16 (LSW)	Always	Below 1 Ω
   M2-7 (E) - Body ground	Always	Below 1 Ω

   Fig 2: Identifying Front Door Lock Assembly And Multiplex Network Master Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY