C1340

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: C1340/47: Center Differential Lock Circuit

DTC C1340/47 - Center Differential Lock Circuit

DESCRIPTION

When the center differential is locked, VSC control turns off and the VSC OFF indicator illuminates.






WIRING DIAGRAM





INSPECTION PROCEDURE
NOTE:
When replacing the master cylinder solenoid, perform zero point calibration Calibration.

PROCEDURE

1. INSPECT SKID CONTROL ECU (EXI TERMINAL)




(a) Disconnect the skid control ECU connector.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:






OK -- REPLACE MASTER CYLINDER SOLENOID
NG -- Continue to next step.
2. INSPECT CENTER DIFFERENTIAL LOCK SWITCH




(a) Disconnect the center diff. lock switch connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPLACE CENTER DIFFERENTIAL LOCK SWITCH
OK -- Continue to next step.
3. INSPECT 4WD CONTROL ECU
(a) Check the center diff. lock system Center Differential Lock System.
NG -- REPLACE 4WD CONTROL ECU
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (4WD CONTROL ECU - CENTER DIFFERENTIAL LOCK SWITCH)




(a) Disconnect the 4WD control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - 4WD CONTROL ECU)




(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MASTER CYLINDER SOLENOID