Transfer System Center Differential Lock Switch Circuit

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

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK CENTER DIFFERENTIAL LOCK INDICATOR LIGHT

CHECK CAN COMMUNICATION LINE

READ VALUE USING GTS

INSPECT COMBINATION METER ASSEMBLY

INSPECT INTEGRATION CONTROL AND PANEL ASSEMBLY OR CENTER DIFFERENTIAL LOCK SWITCH

CHECK HARNESS AND CONNECTOR ((4 WHEEL DRIVE CONTROL ECU - CENTER DIFFERENTIAL LOCK SWITCH)

CHECK CAN COMMUNICATION LINE

READ VALUE USING GTS (CENTER DIFFERENTIAL LOCK INDICATOR LIGHT)

TRANSFER SYSTEM - Center Differential Lock Switch Circuit


WIRING DIAGRAM


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


INSPECTION PROCEDURE

1.CHECK CENTER DIFFERENTIAL LOCK INDICATOR LIGHT

  1. Turn the ignition switch to ON.

  1. Check the center differential lock indicator light.

  1. for Automatic Transmission w/ Entry and Start System:
    Press the center differential lock switch (integration control and panel assembly) .
    for Manual Transmission w/ Entry and Start System:
    Press the center differential lock switch.
    w/o Entry and Start System:
    Press the center differential lock switch.

  1. After 60 seconds, check the center differential lock indicator light.

    Result
    Result
    		Proceed to
    The center differential lock indicator light blinks, turns off or illuminates
    		A
    Center differential lock indicator light remains off regardless of switch operation
    		B
    Center differential lock indicator remains illuminated regardless of switch operation
    		C
    Center differential lock indicator light rapidly blinks
    		D
    1. Blinking: Blinks at 0.5 second intervals (0.5 seconds on and 0.5 seconds off)
    2. Rapidly blinking: Blinks at 0.25 second intervals (0.25 seconds on and 0.25 seconds off)


B
Go to step 2

C
Go to step 7

D
Go to P17D0 (Click here)
A

END

2.CHECK CAN COMMUNICATION LINE

  1. Select "Bus Check" from the System Selection Menu screen, and follow the prompts on the screen to inspect the CAN bus (for LHD with Central Gateway ECU: Click here, for LHD without Central Gateway ECU: Click here, for RHD with Central Gateway ECU: Click here, for RHD without Central Gateway ECU: Click here).

    OK:
    "Bus Check" indicates no malfunctions in CAN communication.

    Result
    Result
    		Proceed to
    DTC is not output
    		A
    DTC is output
    		for LHD with Central Gateway ECU
    		B
    for LHD without Central Gateway ECU
    		C
    for RHD with Central Gateway ECU
    		D
    for RHD without Central Gateway ECU
    		E


B
CHECK CAN COMMUNICATION SYSTEM (Click here)

C
CHECK CAN COMMUNICATION SYSTEM (Click here)

D
CHECK CAN COMMUNICATION SYSTEM (Click here)

E
CHECK CAN COMMUNICATION SYSTEM (Click here)
A


3.READ VALUE USING GTS

  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
    Center Differential Lock Control SW
    		Center differential lock switch status/
    ON or OFF
    		ON: Switch pressed and held
    OFF: Switch not pressed
    		-
    OK:
    for Automatic Transmission w/ Entry and Start System:
    Display changes according to center differential lock switch (integration control and panel assembly) operation.
    for Manual Transmission w/ Entry and Start System:
    Display changes according to center differential lock switch operation.
    w/o Entry and Start System:
    Display changes according to center differential lock switch operation.


NG
Go to step 5
OK


4.INSPECT COMBINATION METER ASSEMBLY

  1. Turn the ignition switch off.

  1. Perform an Active Test of the combination meter assembly using the GTS (Click here).

  1. Check the combination meter assembly.

    OK:
    The center differential lock indicator light turns on or off in accordance with the GTS.

    Result:

    Result
    		Proceed to
    OK
    		for LHD
    		A
    for RHD
    		B
    NG
    		C


B
REPLACE 4 WHEEL DRIVE CONTROL ECU (Click here)

C
INSPECT METER / GAUGE SYSTEM (Click here)
A

REPLACE 4 WHEEL DRIVE CONTROL ECU (Click here)

5.INSPECT INTEGRATION CONTROL AND PANEL ASSEMBLY OR CENTER DIFFERENTIAL LOCK SWITCH

  1. for Automatic Transmission w/ Entry and Start System:

    1. Remove the center differential lock switch (integration control and panel assembly) (Click here).

    2. Inspect the center differential lock switch (integration control and panel assembly) (Click here).

      OK:
      The center differential lock switch (integration control and panel assembly) operates normally.

  1. for Manual Transmission w/ Entry and Start System:

    1. Remove the center differential lock switch (Click here).

    2. Inspect the center differential lock switch (Click here).

      OK:
      The center differential lock switch operates normally.

  1. w/o Entry and Start System:

    1. Remove the center differential lock switch (Click here).

    2. Inspect the center differential lock switch (Click here).

      OK:
      The center differential lock switch operates normally.

Result:

Result
Proceed to
OK
A
NG
for Automatic Transmission w/ Entry and Start System
B
for Manual Transmission w/ Entry and Start System
C
w/o Entry and Start System
D


B
REPLACE INTEGRATION CONTROL AND PANEL ASSEMBLY (Click here)

C
REPLACE CENTER DIFFERENTIAL LOCK SWITCH (Click here)

D
REPLACE CENTER DIFFERENTIAL LOCK SWITCH (Click here)
A


6.CHECK HARNESS AND CONNECTOR ((4 WHEEL DRIVE CONTROL ECU - CENTER DIFFERENTIAL LOCK SWITCH)

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

  1. for Automatic Transmission w/ Entry and Start System:
    Disconnect the V9 center differential lock switch (integration control and panel assembly) connector.

  1. for Manual Transmission w/ Entry and Start System:
    Disconnect the E178 center differential lock switch connector.

  1. w/o Entry and Start System:
    Disconnect the G24 center differential lock switch connector.

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

    Standard Resistance:
    for Automatic Transmission w/ Entry and Start System:
    Tester Connection
    		Condition
    		Specified Condition
    A27-14 (DL) - V9-9 (CPU)
    		Always
    		Below 1 Ω
    V9-5 (E) - Body ground
    		Always
    		Below 1 Ω
    for Manual Transmission w/ Entry and Start System:
    Tester Connection
    		Condition
    		Specified Condition
    A27-14 (DL) - E178-9 (CPU)
    		Always
    		Below 1 Ω
    E178-6 (E) - Body ground
    		Always
    		Below 1 Ω
    w/o Entry and Start System:
    Tester Connection
    		Condition
    		Specified Condition
    A27-14 (DL) - G24-9 (CPU)
    		Always
    		Below 1 Ω
    G24-6 (E) - Body ground
    		Always
    		Below 1 Ω


B
REPLACE 4 WHEEL DRIVE CONTROL ECU (Click here)

C
REPAIR OR REPLACE HARNESS OR CONNECTOR
A

REPLACE 4 WHEEL DRIVE CONTROL ECU (Click here)

7.CHECK CAN COMMUNICATION LINE

  1. Select "Bus Check" from the System Selection Menu screen, and follow the prompts on the screen to inspect the CAN bus (for LHD with Central Gateway ECU: Click here, for LHD without Central Gateway ECU: Click here, for RHD with Central Gateway ECU: Click here, for RHD without Central Gateway ECU: Click here).

    OK:
    "Bus Check" indicates no malfunctions in CAN communication.

    Result
    Result
    		Proceed to
    DTC is not output
    		A
    DTC is output
    		for LHD with Central Gateway ECU
    		B
    for LHD without Central Gateway ECU
    		C
    for RHD with Central Gateway ECU
    		D
    for RHD without Central Gateway ECU
    		E


B
CHECK CAN COMMUNICATION SYSTEM (Click here)

C
CHECK CAN COMMUNICATION SYSTEM (Click here)

D
CHECK CAN COMMUNICATION SYSTEM (Click here)

E
CHECK CAN COMMUNICATION SYSTEM (Click here)
A


8.READ VALUE USING GTS (CENTER DIFFERENTIAL LOCK INDICATOR LIGHT)

  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
    Center Differential Lock Indicator Request
    		Center differential lock indicator light request/
    Blink3, Blink2, Blink1, ON or OFF
    1. Blink3: Indicator light rapidly blinks
    2. Blink2: Indicator light blinks 3 times
    3. Blink1: Indicator light blinks
    4. ON: Indicator light illuminates
    5. OFF: Indicator light turns off
    1. Blinking: 0.5 second intervals (0.5 seconds on and 0.5 seconds off)
    2. Rapidly blinking: 0.25 second intervals (0.25 seconds on and 0.25 seconds off)

    1. for Automatic Transmission w/ Entry and Start System:
      Turn the differential lock switch (integration control and panel assembly) on and off several times and check the GTS display condition of the center differential lock indicator light.
      for Manual Transmission w/ Entry and Start System:
      Turn the differential lock switch on and off several times and check the GTS display condition of the center differential lock indicator light.
      w/o Entry and Start System:
      Turn the differential lock switch on and off several times and check the GTS display condition of the center differential lock indicator light.

      Result:

      Result
      		Proceed to
      Data List continues to display ON even when center differential lock switch (integration control and panel assembly) is operated*1
      Data List continues to display ON even when center differential lock switch is operated*2. *3
      		for LHD
      		A
      for RHD
      		B
      Data List display changes according to center differential lock switch (integration control and panel assembly) operation*1
      Data List display changes according to center differential lock switch operation*2, *3
      		C
      1. *1: for Automatic Transmission w/ Entry and Start System
      2. *2: for Manual Transmission w/ Entry and Start System
      3. *3: w/o Entry and Start System


B
REPLACE 4 WHEEL DRIVE CONTROL ECU (Click here)

C
INSPECT METER / GAUGE SYSTEM (Click here)
A

REPLACE 4 WHEEL DRIVE CONTROL ECU (Click here)