POWER DOOR LOCK CONTROL SYSTEM All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch

DESCRIPTION

The main body ECU (instrument panel junction block) receives switch signals from the door control switch and activates the door lock motor on each door according to these signals.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. INSPECT DOOR CONTROL SWITCH ASSEMBLY (DOOR LOCK AND UNLOCK SWITCH)

   
   

   1. Remove the door control switch Click here.

   2. 

      Measure the resistance according to the value(s) in the table below.

      Standard resistance
      Tester Connection Switch Condition Specified Condition 4 - 3 Locked Below 1 Ω 4 - 3 2 - 3 OFF (Free) 10 kΩ or higher 2 - 3 Unlocked Below 1 Ω

   
   

   NG

   REPLACE DOOR CONTROL SWITCH ASSEMBLY Click here

   OK

2. CHECK HARNESS AND CONNECTOR (DOOR CONTROL SWITCH CIRCUIT)

   
   

   1. 

      Disconnect the instrument panel junction block connector.

   2. Measure the resistance according to the value(s) in the table below.

      Standard resistance
      for LHD
      Tester Connection Condition Specified Condition G6-2 (UL) - 1J-4 Always Below 1 Ω G6-4 (L) - 1J-3 Always Below 1 Ω G6-3 (E) - Body ground Always Below 1 Ω G6-2 (UL) - Body ground Always 10 kΩ or higher G6-4 (L) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition H9-2 (UL) - 1J-4 Always Below 1 Ω H9-4 (L) - 1J-3 Always Below 1 Ω H9-3 (E) - Body ground Always Below 1 Ω H9-2 (UL) - Body ground Always 10 kΩ or higher H9-4 (L) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

   REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)