Transfer System Clutch Switch Circuit

Drivetrain. Land Cruiser. Urj200, 202 Grj200 Vdj200
Jf2A Transfer 4Wd Awd. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING GTS (CLUTCH START SWITCH)

CHECK ENGINE CONTROL SYSTEM

CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - CLUTCH START SWITCH ASSEMBLY)

TRANSFER SYSTEM - Clutch Switch Circuit


DESCRIPTION

While depressing the clutch pedal, the clutch start switch assembly sends a signal to terminal MTN of the 4 wheel drive control ECU. While the signal is input, switching between H4 and L4 is possible.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Jf2A Transfer 4Wd Awd.Transfer System.Transfer System Clutch Switch Circuit


INSPECTION PROCEDURE

1.READ VALUE USING GTS (CLUTCH START SWITCH)

  1. Turn the ignition switch off.

  1. Connect the GTS to the DLC3.

  1. Turn the GTS on.

  1. Turn the ignition switch to ON.

  1. Enter the following menus: Powertrain / Four Wheel Drive / Data List.

  1. According to the display on the GTS, read the Data List.

    Four Wheel Drive
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Clutch SW
    		Clutch start switch status
    ON or OFF
    		ON: Clutch pedal depressed
    OFF: Clutch pedal released
    		Used only for vehicles with a manual transmission.
    Displays OFF for vehicles with an automatic transmission.
    OK:
    The display changes according to the clutch pedal operation.


NG
Go to step 2
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

2.CHECK ENGINE CONTROL SYSTEM

  1. Check that the engine control system operates normally.
    for 1VD-FTV (w/o DPF): Click here
    for 1GR-FE: Click here

    OK:
    Engine control system operates normally.

    Result:

    Result
    		Proceed to
    OK
    		A
    NG (for 1VD-FTV (w/o DPF))
    		B
    NG (for 1GR-FE)
    		C


B
CHECK ENGINE CONTROL SYSTEM (Click here)

C
CHECK ENGINE CONTROL SYSTEM (Click here)
A


3.CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - CLUTCH START SWITCH ASSEMBLY)

  1. Disconnect the A27 4 wheel drive control ECU connector.

  1. for LHD:
    Disconnect the A49 clutch start switch assembly connector.

  1. for RHD:
    Disconnect the e1 clutch start switch assembly connector.

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

    Standard Resistance:
    for LHD:
    Tester Connection
    		Condition
    		Specified Condition
    A27-18 (MTN) - A49-1
    		Always
    		Below 1 Ω
    A27-18 (MTN) or A49-1 - Body ground
    		Always
    		10 kΩ or higher
    for RHD:
    Tester Connection
    		Condition
    		Specified Condition
    A27-18 (MTN) - e1-1
    		Always
    		Below 1 Ω
    A27-18 (MTN) or e1-1 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE 4 WHEEL DRIVE CONTROL ECU (Click here)