Dtc C1340 Center Differential Lock Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK TERMINAL VOLTAGE (EXI)

RECONFIRM DTC

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

DTC C1340 Center Differential Lock Circuit


DESCRIPTION


DTC Code
DTC Detection Condition
Trouble Area
C1340
An open circuit is detected in the EXI circuit of the skid control ECU.
  1. Harness or connector
  2. Transfer system
  3. Master cylinder solenoid (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 C1340 Center Differential Lock Circuit


INSPECTION PROCEDURE

NOTICE:
When replacing the master cylinder solenoid, perform calibration (LandCruiser RM00000452J00ZX.html).
1.CHECK TERMINAL VOLTAGE (EXI)

  1. Disconnect the A7 skid control ECU connector.



    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C1340 Center Differential Lock Circuit

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

    Standard Voltage
    Tester Connection
    		Switch Condition
    		Specified Condition
    A7-27 (EXI) - Body ground
    		Ignition switch ON
    		11 to 14 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Skid Control ECU)


NG
Go to step 3
OK


2.RECONFIRM DTC

  1. Clear the DTCs (LandCruiser RM0000046KV016X.html).

  1. Check for DTCs (LandCruiser RM0000046KV016X.html).

    Result
    Result
    		Proceed to
    DTC is not output
    		A
    DTC is output (for LHD)
    		B
    DTC is output (for RHD)
    		C


B
REPLACE MASTER CYLINDER SOLENOID (LandCruiser RM00000171U02DX.html)

C
REPLACE MASTER CYLINDER SOLENOID (LandCruiser RM00000171U02EX.html)
A

USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)

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

  1. Disconnect the A7 skid control ECU (master cylinder solenoid) connector.

  1. Disconnect the G53 4 wheel drive control ECU connector.

  1. Disconnect the C43 center differential lock detection switch (transfer shift actuator assembly) connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A7-27 (EXI) - G53-14 (P1)
    		Always
    		Below 1 Ω
    A7-27 (EXI) - C43-9 (CDL)
    		Always
    		Below 1 Ω
    A7-27 (EXI) - 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)