Power Door Lock Control System Power Source Circuit

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Door Lock. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (DOOR CONTROL BATTERY - BATTERY AND BODY GROUND)

CHECK HARNESS AND CONNECTOR (DOOR CONTROL BATTERY - COWL SIDE JUNCTION BLOCK LH)

INSPECT COWL SIDE JUNCTION BLOCK LH

CHECK DOOR CONTROL BATTERY (POWER OUTPUT)

POWER DOOR LOCK CONTROL SYSTEM - Power Source Circuit


DESCRIPTION

The main power source for the main body ECU (cowl side junction block LH) is supplied via the door control battery.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Door Lock.Power Door Lock Control System.Power Door Lock Control System Power Source Circuit


INSPECTION PROCEDURE

NOTICE:
  1. As the door control battery is installed between the vehicle battery and main body ECU, first perform the inspections in On-Vehicle Inspection to confirm that there are no malfunctions in the power source circuit for the main body ECU before performing this troubleshooting procedure (Click here).
  2. Inspect the fuses for circuits related to this system before performing the following procedure.
1.CHECK HARNESS AND CONNECTOR (DOOR CONTROL BATTERY - BATTERY AND BODY GROUND)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Door Lock.Power Door Lock Control System.Power Door Lock Control System Power Source Circuit

  1. Disconnect the door control battery connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E168-2 (GND1) - Body ground
    		Always
    		Below 1 Ω
    E168-10 (GND1) - Body ground
    		Always
    		Below 1 Ω

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E168-4 (BECU) - Body ground
    		Always
    		11 to 14 V
    E168-5 (BATB) - Body ground
    		Always
    		11 to 14 V
Text in Illustration
*a
Front view of wire harness connector
(to Door Control Battery)


NG
REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)
OK


2.CHECK HARNESS AND CONNECTOR (DOOR CONTROL BATTERY - COWL SIDE JUNCTION BLOCK LH)

  1. Disconnect theE168 door control battery connector.

  1. Disconnect the 2J cowl side junction block LH connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E168-3 (EDOR) - 2J-23
    		Always
    		Below 1 Ω
    E168-3 (EDOR) or 2J-23 - Body ground
    		Always
    		10. kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT COWL SIDE JUNCTION BLOCK LH

  1. Remove the cowl side junction block LH.

  1. for LHD: Click here
  2. for RHD: Click here

Land Cruiser. Urj200, 202 Grj200 Vdj200.Door Lock.Power Door Lock Control System.Power Door Lock Control System Power Source Circuit


Text in Illustration
*a
Component without harness connected
(Cowl Side Junction Block LH)
-
-

  1. Remove the main body ECU from the cowl side junction block LH.

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

Standard Resistance:
Tester Connection
Condition
Specified Condition
A-31 (EDOR) - 2J-23
Always
Below 1 Ω
Result
Result
Proceed to
OK
A
NG (for LHD)
B
NG (for RHD)
C


B
REPLACE COWL SIDE JUNCTION BLOCK LH (for LHD) (Click here)

C
REPLACE COWL SIDE JUNCTION BLOCK LH (for RHD) (Click here)
A


4.CHECK DOOR CONTROL BATTERY (POWER OUTPUT)

  1. Turn the ignition switch off.

  1. Remove the MPX-B NO. 1 fuse from the engine room relay block. and leave the vehicle as is for 50 minutes.

  1. Leave the vehicle as is for 30 minutes (wait until the door control battery is discharged).

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E168-3 (EDOR) - Body ground
    		Ignition switch off
    		Below 2 V

  1. Install the MPX-B NO.1 fuse to the engine room relay block.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E168-3 (EDOR) - Body ground
    		Ignition switch off
    		11 to 14 V
Result
Result
Proceed to
OK (for LHD)
A
OK (for RHD)
B
NG
C


B
REPLACE COWL SIDE JUNCTION BLOCK LH (for RHD) (Click here)

C
REPLACE DOOR CONTROL BATTERY (Click here)
A

REPLACE COWL SIDE JUNCTION BLOCK LH (for LHD) (Click here)