Inspection Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Data List.
5. Read the display on the Techstream.

   Main Body (Main Body ECU) 

   MEASUREMENT ITEM/RANGE CHART
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D-Door Lock Pos SW	Driver side door lock position switch signal / ON or OFF	ON: Driver side door unlocked OFF: Driver side door locked	-
   P-Door Lock Pos SW	Front passenger side door lock position switch signal / ON or OFF	ON: Front passenger side door unlocked OFF: Front passenger side door locked	-

   OK: 

   Normal conditions listed above are displayed. 

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

NG: Go to next step 

Fig 1: Inspecting Front Door Lock

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the front door lock (driver side or passenger side).
2. Measure the resistance of the door lock.

   Standard resistance: 

   Front door lock (for Driver Side) 

   FRONT DOOR LOCK (FOR DRIVER SIDE)
   
   

   Tester Connection	Condition	Specified Condition
   8 (LSSR) - 7 (E)	LOCK	Below 1 Ω
   	UNLOCK	10 kΩ or higher

   Front door lock (for Passenger Side) 

   FRONT DOOR LOCK (FOR PASSENGER SIDE)
   
   

   Tester Connection	Condition	Specified Condition
   7 (LSSR) - 8 (E)	LOCK	Below 1 Ω
   	UNLOCK	10 kΩ or higher

NG: REPLACE FRONT DOOR LOCK ASSEMBLY 

OK: Go to next step 

1. Disconnect the E15 main body ECU connector.
2. Measure the resistance of the wire harness side connector.

   Standard resistance: 

   Front door lock (for Driver Side) 

   FRONT DOOR LOCK (FOR DRIVER SIDE)
   
   

   Tester Connection	Condition	Specified Condition
   E15-25 (LSWD) - Body ground	LOCK	Below 1 Ω
   	UNLOCK	10 kΩ or higher

   Fig 2: Identifying E15 Main Body ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Front door lock (for Passenger Side) 

   FRONT DOOR LOCK (FOR PASSENGER SIDE)
   
   

   Tester Connection	Condition	Specified Condition
   E15-10 (LSWP) - Body ground	LOCK	Below 1 Ω
   	UNLOCK	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)