C0374

Circuit Description
The Auto Transfer Case (ATC) Control Module senses rear to front slip, a difference of rear to front wheel speed, attempts to correct the difference by turning on the motor, internal to the Transfer Case, to apply torque to the front wheels.


Conditions for Setting the DTC
The Auto Transfer Case (ATC) Control Module is unable to correct sensed slip for 10 consecutive seconds.


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


Test Description
The number(s) below refer to the step number(s) on the diagnostic table.
2. This step checks to see if the transfer case shift control module has electronic control of the encoder motor.
3. This step checks to see if the transfer case shift control module can sense whether or not the encoder motor is connected.
5. This step determines if the encoder is moving to the correct gear positions.






DTC C0374 General System Malfunction