Description
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only. CAN Communication Signal Chart. Refer to [ CAN COMMUNICATION SIGNAL CHART ]
Self-diagnosis memory function was suspended due to low battery voltage at the differential lock control unit.
Replace the differential lock control unit if this DTC is displayed. Refer to [ DIFFERENTIAL LOCK CONTROL UNIT: REMOVAL AND INSTALLATION ].
Replace the differential lock control unit if this DTC is displayed. Refer to [ DIFFERENTIAL LOCK CONTROL UNIT: REMOVAL AND INSTALLATION ].
Replace the differential lock control unit if this DTC is displayed. Refer to [ DIFFERENTIAL LOCK CONTROL UNIT: REMOVAL AND INSTALLATION ].
Replace the differential lock control unit if this DTC is displayed. Refer to [ DIFFERENTIAL LOCK CONTROL UNIT: REMOVAL AND INSTALLATION ].
The differential lock mode switch sends differential lock ON/OFF request signals to the differential lock control unit.
The differential lock position switch sends a signal to the differential lock control unit when the differential lock is engaged. The differential lock control unit monitors the left and right rear wheel speed sensor signals to determine wheel slippage. When the differential lock is engaged the left and right rear wheel speed sensor signals should match.
The differential lock solenoid relay is an integral part of the differential lock control unit.
Replace the differential lock control unit if this DTC is displayed. Refer to [ DIFFERENTIAL LOCK CONTROL UNIT: REMOVAL AND INSTALLATION ].
When power and ground is supplied from the differential lock control unit, the differential lock solenoid will actuate to move the pressure plate against the cam ring to lock the differential. By reversing polarity at the differential lock control unit, the differential lock solenoid moves the pressure plate away from the cam ring to unlock the differential.
When power and ground is supplied from the differential lock control unit, the differential lock solenoid will actuate to move the pressure plate against the cam ring to lock the differential. By reversing polarity at the differential lock control unit, the differential lock solenoid moves the pressure plate away from the cam ring to unlock the differential.
The differential lock control unit supplies power and ground to the differential lock solenoid via the differential lock solenoid relay (integral to the differential lock control unit).
The differential lock control unit and the ABS actuator and electric unit (control unit) are in communication via the CAN communication network. Vehicle speed and wheel slippage information is used by the differential lock control unit to determine if conditions are met to actuate the differential lock solenoid.
The DIFF LOCK indicator lamp has power available to it any time the ignition switch is in the ON or START position. The differential lock control unit supplies ground to activate the DIFF LOCK indicator lamp. The DIFF LOCK indicator lamp will go through a prove out at initial key ON. The DIFF LOCK will flash while the differential lock system is activating or while waiting for conditions to be met to activate. Once the differential lock has been engaged, the DIFF LOCK indicator lamp will remain ON. For more information about the DIFF LOCK indicator lamp, refer to the Owner's Manual.
The DIFF LOCK indicator lamp will flash once every 2 seconds when the differential lock system is in standby condition. Standby condition is the time between when the differential lock mode switch is turned ON and when the differential lock control unit see's all conditions are met to engage the differential lock. The DIFF LOCK indicator lamp should be OFF if there has been a malfunction detected. For more information regarding the differential lock system operation, refer to the Owner's Manual.