Automatic Transmission System (For 1Gr-Fe) Transmission Control Switch Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING GTS (SPORTS MODE SELECTION SW)

READ VALUE USING GTS (SPORTS SHIFT UP SW AND SPORTS SHIFT DOWN SW)

INSPECT TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY)

CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BODY GROUND)

CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)

INSPECT TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY)

CHECK HARNESS AND CONNECTOR (BATTERY - TRANSMISSION CONTROL SWITCH)

CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)

AUTOMATIC TRANSMISSION SYSTEM (for 1GR-FE) - Transmission Control Switch Circuit


DESCRIPTION

After moving the shift lever to S, it is possible to switch the shift range between "1" (S1 range) and "6" (S6 range) using the transmission control switch.
Moving the shift lever to "+" once raises the shift range by one, and moving the shift lever to "-" once lowers the shift range by one.

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Ac60F Automatic Transmission Transaxle.Automatic Transmission System (For 1Gr-Fe).Automatic Transmission System (For 1Gr-Fe) Transmission Control Switch Circuit


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.READ VALUE USING GTS (SPORTS MODE SELECTION SW)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

  1. Enter the following menus: Powertrain / Engine and ECT / Data List.

  1. In accordance with the display on the GTS, read the Data List.

    Engine and ECT
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Sports Mode Selection SW
    		Sport mode select switch status/
    ON or OFF
    1. ON: Shift lever in S, "+" or "-"
    2. OFF: Shift lever not in S, "+" or "-"
    		-

Result
Result
Proceed to
Data display is within Normal Condition range
A
Data display is not within Normal Condition range
B


B
Go to step 6
A


2.READ VALUE USING GTS (SPORTS SHIFT UP SW AND SPORTS SHIFT DOWN SW)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

  1. Enter the following menus: Powertrain / Engine and ECT / Data List.

  1. In accordance with the display on the GTS, read the Data List.

    Engine and ECT
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Sports Shift Up SW
    		Sport shift up switch status/
    ON or OFF
    1. ON: Shift lever held in "+" (up-shift)
    2. OFF: Shift lever not held in "+" (up-shift)
    		-
    Sports Shift Down SW
    		Sport shift down switch status/
    ON or OFF
    1. ON: Shift lever held in "-" (down-shift)
    2. OFF: Shift lever not held in "-" (down-shift)
    		-

Result
Result
Proceed to
Data display is within Normal Condition range
A
Data display is not within Normal Condition range
B


B
Go to step 3
A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (LandCruiser RM000000W7313FX.html)

3.INSPECT TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY)


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Ac60F Automatic Transmission Transaxle.Automatic Transmission System (For 1Gr-Fe).Automatic Transmission System (For 1Gr-Fe) Transmission Control Switch Circuit

  1. Disconnect the transmission control switch connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    2 (SFTU) - 5 (E)
    		Shift lever held in "+"
    (Up-shift)
    		Below 1 Ω
    1 (SFTD) - 5 (E)
    		Shift lever held in "-"
    (Down-shift)
    		Below 1 Ω
    2 (SFTU) - 5 (E)
    		Shift lever not held in "+"
    		10 kΩ or higher
    1 (SFTD) - 5 (E)
    		Shift lever not held in "-"
    		10 kΩ or higher
    Text in Illustration
    *a
    		Component without harness connected
    (Transmission Control Switch)


NG
REPLACE TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY) (LandCruiser RM0000010NQ037X.html)
OK


4.CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BODY GROUND)


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Ac60F Automatic Transmission Transaxle.Automatic Transmission System (For 1Gr-Fe).Automatic Transmission System (For 1Gr-Fe) Transmission Control Switch Circuit

  1. Disconnect the transmission control switch connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    G47-5 (E) - Body ground
    		Always
    		Below 1 Ω
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Transmission Control Switch)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Ac60F Automatic Transmission Transaxle.Automatic Transmission System (For 1Gr-Fe).Automatic Transmission System (For 1Gr-Fe) Transmission Control Switch Circuit

  1. Disconnect the ECM connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    G56-15 (SFTU) - Body ground
    		Shift lever held in "+"
    (Up-shift)
    		Below 1 Ω
    G56-9 (SFTD) - Body ground
    		Shift lever held in "-"
    (Down-shift)
    		Below 1 Ω
    G56-15 (SFTU) - Body ground
    		Shift lever not held in "+"
    		10 kΩ or higher
    G56-9 (SFTD) - Body ground
    		Shift lever not held in "-"
    		10 kΩ or higher
    Text in Illustration
    *a
    		Rear 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 (LandCruiser RM000000W7313FX.html)

6.INSPECT TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY)


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Ac60F Automatic Transmission Transaxle.Automatic Transmission System (For 1Gr-Fe).Automatic Transmission System (For 1Gr-Fe) Transmission Control Switch Circuit

  1. Disconnect the transmission control switch connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    3 (IG) - 7 (S)
    		Shift lever in S, "+" or "- "
    		Below 1 Ω
    3 (IG) - 7 (S)
    		Shift lever not in S, "+" or "-"
    		10 kΩ or higher
    Text in Illustration
    *a
    		Component without harness connected
    (Transmission Control Switch)


NG
REPLACE TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY) (LandCruiser RM0000010NQ037X.html)
OK


7.CHECK HARNESS AND CONNECTOR (BATTERY - TRANSMISSION CONTROL SWITCH)


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Ac60F Automatic Transmission Transaxle.Automatic Transmission System (For 1Gr-Fe).Automatic Transmission System (For 1Gr-Fe) Transmission Control Switch Circuit

  1. Disconnect the transmission control switch connector.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    G47-3 (IG) - Body ground
    		Engine switch on (IG)
    		11 to 14 V
    G47-3 (IG) - Body ground
    		Engine switch off
    		Below 1 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Transmission Control Switch)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


8.CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)

  1. Disconnect the G47 transmission control switch connector.

  1. Disconnect the G56 ECM connector.

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

    Standard Resistance:

    Tester Connection
    		Condition
    		Specified Condition
    G47-7 (S) - G56-22 (S)
    		Always
    		Below 1 Ω
    G47-7 (S) - Body ground
    		Always
    		10 kΩ or higher
    G56-22 (S) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (LandCruiser RM000000W7313FX.html)