Dtc C1282 Center Differential Lock Position Switch


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT CENTER DIFFERENTIAL LOCK SHIFT

CHECK TEST MODE DTC

CHECK TERMINAL VOLTAGE (EXI4)

CHECK TEST MODE DTC

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - FOUR WHEEL DRIVE CONTROL ECU/TRANSFER SHIFT ACTUATOR)

DTC C1282 Center Differential Lock Position Switch


DESCRIPTION

DTC C1282 is stored only in test mode.

DTC Code
DTC Detection Condition
Trouble Area
C1282
Stored during test mode.
  1. Harness or connector
  2. Transfer system
  3. Brake actuator assembly (Skid control ECU)

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C1282 Center Differential Lock Position Switch


INSPECTION PROCEDURE

NOTICE:
When replacing the brake actuator assembly, perform calibration (LandCruiser RM000000XHR0BKX.html).
1.INSPECT CENTER DIFFERENTIAL LOCK SHIFT

  1. Check that the center differential can shift from free to lock, and from lock to free.

    OK:
    The center differential can shift from free to lock, and from lock to free.


NG
Go to step 3
OK


2.CHECK TEST MODE DTC

  1. Switch the vehicle to test mode, perform the center differential lock signal check, and then check that DTC C1282 is cleared (LandCruiser RM000000XHT0EPX.html).

    Result
    Result
    		Proceed to
    DTC is not cleared
    		A
    DTC is cleared
    		B


B
USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)
A

REPLACE BRAKE ACTUATOR ASSEMBLY (LandCruiser RM0000034UX02TX.html)

3.CHECK TERMINAL VOLTAGE (EXI4)

  1. Set the vehicle in the center differential locked state using the center differential lock switch.

  1. Disconnect the A6 skid control ECU connector.

  1. Turn the ignition switch to ON.



    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C1282 Center Differential Lock Position Switch

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    A6-9 (EXI4) - Body ground
    		Center differential locked
    (Center differential lock switch on)
    		Below 1.5 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Skid Control ECU)

  1. Connect the A6 skid control ECU connector.

  1. Set the vehicle in the center differential free state using the center differential lock switch.

  1. Disconnect the A6 skid control ECU connector.

  1. Turn the ignition switch to ON.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    A6-9 (EXI4) - Body ground
    		Center differential free
    (Center differential lock switch off)
    		11 to 14 V


NG
Go to step 5
OK


4.CHECK TEST MODE DTC

  1. Switch the vehicle to test mode, perform the center differential lock signal check, and then check that DTC C1282 is cleared (LandCruiser RM000000XHT0EPX.html).

    Result
    Result
    		Proceed to
    DTC is not cleared
    		A
    DTC is cleared
    		B


B
USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)
A

REPLACE BRAKE ACTUATOR ASSEMBLY (LandCruiser RM0000034UX02TX.html)

5.CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - FOUR WHEEL DRIVE CONTROL ECU/TRANSFER SHIFT ACTUATOR)

  1. Disconnect the A6 skid control ECU connector.

  1. Disconnect the G53 four wheel drive control ECU connector.

  1. Disconnect the C43 transfer shift actuator connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A6-9 (EXI4) - G53-14 (P1)
    		Always
    		Below 1 Ω
    A6-9 (EXI4) - C43-9 (CDL)
    		Always
    		Below 1 Ω
    A6-9 (EXI4) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

GO TO TRANSFER SYSTEM (PROBLEM SYMPTOMS TABLE) (LandCruiser RM000003BB7017X.html)