Automatic Transmission System (For 1Ur-Fe) Pattern Select Switch 2Nd Start Mode Circuit

Drivetrain. Land Cruiser. Urj200, 202 Grj200 Vdj200
Ab60F Automatic Transmission Transaxle. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

DRIVING TEST

INSPECT ECT 2ND SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY)

CHECK HARNESS AND CONNECTOR (INTEGRATION CONTROL AND PANEL ASSEMBLY - BODY GROUND)

CHECK HARNESS AND CONNECTOR (INTEGRATION CONTROL AND PANEL ASSEMBLY - ECM)

AUTOMATIC TRANSMISSION SYSTEM (for 1UR-FE) - Pattern Select Switch 2nd Start Mode Circuit


DESCRIPTION

When 2nd mode is selected with the ECT 2nd switch (integration control and panel assembly), the ECM controls the solenoid valves and the transmission starts from 2nd gear.
The 2nd mode is the system that operates the throttle motor to control engine output to reduce skidding of the driving wheels, and guarantee takeoff acceleration, driving straightness and turning stability.
When the shift lever is in D, the transmission automatically shifts up through 3rd to 6th as usual.

WIRING DIAGRAM

Refer to Pattern Select Switch Power Mode Circuit (Click here).

INSPECTION PROCEDURE

When the ECT 2nd switch is pushed, switch contact is made and 2nd mode is selected. To cancel 2nd mode, push the ECT 2nd switch once again.
HINT:
2nd mode is automatically canceled when the engine switch is turned off.
1.DRIVING TEST
HINT:
The driving test should be performed on a paved road (nonskid road).

  1. Start the engine.

  1. Turn the ECT 2nd switch off (normal drive mode).

  1. Confirm vehicle response by driving from a parked position to fully depressing the accelerator pedal.

  1. Turn the ECT 2nd switch on and perform the same check as above.
    When driving the vehicle with the ECT 2nd switch on and off, check that there is a difference in acceleration.

    OK:
    There is a difference in acceleration.


NG
Go to step 2
OK

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

2.INSPECT ECT 2ND SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Ab60F Automatic Transmission Transaxle.Automatic Transmission System (For 1Ur-Fe).Automatic Transmission System (For 1Ur-Fe) Pattern Select Switch 2Nd Start Mode Circuit

  1. Remove the integration control and panel assembly (Click here).

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    8 (2ND) - 5 (E)
    		ECT 2nd switch on
    		Below 1 Ω
    8 (2ND) - 5 (E)
    		ECT 2nd switch off
    		10 kΩ or higher
    Text in Illustration
    *a
    		Component without harness connected
    (Integration Control and Panel Assembly)


NG
REPLACE INTEGRATION CONTROL AND PANEL ASSEMBLY (Click here)
OK


3.CHECK HARNESS AND CONNECTOR (INTEGRATION CONTROL AND PANEL ASSEMBLY - BODY GROUND)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Ab60F Automatic Transmission Transaxle.Automatic Transmission System (For 1Ur-Fe).Automatic Transmission System (For 1Ur-Fe) Pattern Select Switch 2Nd Start Mode Circuit

  1. Disconnect the integration control and panel assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    V9-5 (E) - Body ground
    		Always
    		Below 1 Ω
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Integration Control and Panel Assembly)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.CHECK HARNESS AND CONNECTOR (INTEGRATION CONTROL AND PANEL ASSEMBLY - ECM)
Land Cruiser. Urj200, 202 Grj200 Vdj200.Ab60F Automatic Transmission Transaxle.Automatic Transmission System (For 1Ur-Fe).Automatic Transmission System (For 1Ur-Fe) Pattern Select Switch 2Nd Start Mode Circuit

  1. Disconnect the ECM connector.

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

    Standard Resistance:
    for LHD
    Tester Connection
    		Switch Condition
    		Specified Condition
    A38-4 (SNWI) - Body ground
    		ECT 2nd switch on
    		Below 1 Ω
    A38-4 (SNWI) - Body ground
    		ECT 2nd switch off
    		10 kΩ or higher
    for RHD
    Tester Connection
    		Switch Condition
    		Specified Condition
    A52-4 (SNWI) - Body ground
    		ECT 2nd switch on
    		Below 1 Ω
    A52-4 (SNWI) - Body ground
    		ECT 2nd switch off
    		10 kΩ or higher
Text in Illustration
*1
for LHD
*2
for RHD
*a
Front view of wire harness connector
(to ECM)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

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