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

DESCRIPTION

The main body ECU (multiplex network body ECU) receives switch signals from the door control switch (power window regulator switch assembly) and activates the door lock motor on each door according to these signals.

INSPECTION PROCEDURE

PROCEDURE

1. Click here

   READ VALUE USING INTELLIGENT TESTER (DOOR CONTROL SWITCH)

   
   

   1. Connect the intelligent tester to the DLC3.

   2. Turn the power switch on (IG).

   3. Turn the intelligent tester on.

   4. Enter the following menus: Body / Main Body / Data List.

   5. Read the Data List according to the display on the intelligent tester.

      Table 1. Main Body (Main Body ECU (Multiplex Network Body ECU))

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      Door Lock SW-Lock	Front passenger side door control switch lock signal/ON or OFF	ON: Front passenger side door control switch pushed to lock position OFF: Front passenger side door control switch not pushed to lock position	-
      Door Lock SW-Unlock	Front passenger side door control switch unlock signal/ON or OFF	ON: Front passenger side door control switch pushed to unlock position OFF: Front passenger side door control switch not pushed to unlock position	-

      OK
      The intelligent tester indicates ON or OFF according to the switch operation shown in the table.

   
   
   • OKClick here
   • NGClick here
2. Click here

   INSPECT DOOR CONTROL SWITCH (POWER WINDOW REGULATOR SWITCH ASSEMBLY)

   
   
   1. 

      Remove the door control switch (power window regulator switch assembly) (Click here).

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition 12 (L) - 5 (GND) Locked Below 1 Ω 12 (L) - 5 (GND) off 10 kΩ or higher 7 (UL) - 5 (GND) Unlocked Below 1 Ω 7 (UL) - 5 (GND) off 10 kΩ or higher

      Table 2. Text in Illustration

      *1	Component without harness connected (Door Control Switch (Power Window Regulator Switch Assembly))

   
   
   • OKClick here
   • NGClick here
3. Click here

   CHECK HARNESS AND CONNECTOR (DOOR CONTROL SWITCH - MAIN BODY ECU RH AND BODY GROUND)

   
   
   1. 

      Disconnect the main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance
      Table 3. for LHD Tester Connection Condition Specified Condition I7-7 (UL) - F13-10 (UL1) Always Below 1 Ω I7-12 (L) - F13-9 (L1) Always Below 1 Ω I7-7 (UL) - Body ground Always 10 kΩ or higher I7-12 (L) - Body ground Always 10 kΩ or higher I7-5 (GND) - Body ground Always Below 1 Ω
      Table 4. for RHD Tester Connection Condition Specified Condition J12-7 (UL) - F13-10 (UL1) Always Below 1 Ω J12-12 (L) - F13-9 (L1) Always Below 1 Ω J12-7 (UL) - Body ground Always 10 kΩ or higher J12-12 (L) - Body ground Always 10 kΩ or higher J12-5 (GND) - Body ground Always Below 1 Ω

      Table 5. Text in Illustration

      *1	Front view of wire harness connector (to Door Control Switch (Power Window Regulator Switch Assembly))
      *2	Front view of wire harness connector (to Main Body ECU (Multiplex Network Body ECU))
      *3	for LHD
      *4	for RHD

   
   
   • OKClick here
   • NGClick here
4. Click here

   REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)Click here

5. Click here

   REPLACE DOOR CONTROL SWITCH (POWER WINDOW REGULATOR SWITCH ASSEMBLY)Click here

6. Click here

   REPAIR OR REPLACE HARNESS OR CONNECTOR