C0374

DTC C0374

Circuit Description
The transfer case shift control module senses rear to front slip, a difference of rear to front wheel speed. The transfer case shift control module attempts to correct the difference by activating the encoder motor, applying more torque to the front wheels.

DTC Descriptor
This diagnostic procedure supports this DTC:
DTC C0374 General System Malfunction

Conditions for Running the DTC
^ The ignition is ON.
^ The system voltage is 9 - 16 volts.
^ There are no motor circuit faults present.

Conditions for Setting the DTC
The transfer case shift control module is unable to correct sensed slip for 10 consecutive seconds.

Action Taken When the DTC Sets
^ All clutch activation, slip control is disabled.
^ The SERVICE AWD indicator remains illuminated for the remainder of the current ignition cycle.

Conditions for Clearing the DTC
^ A history DTC clears after 100 consecutive ignition cycles without a fault present.
^ Use a scan tool in order to clear history and current DTCs.

Test Description





These numbers correspond to the step numbers on the diagnostic table.
2. This step determines if DTCs C0300 or C0305 have set.
3. This step helps determine if the DTC set due to a mechanical or an electrical fault.
4. This step tests the integrity of the motor control circuit.
5. This step determines whether the transfer case clutch pack is holding.