Action Taken When the DTC Sets

• Shifting is still possible but in a reduced capacity which may cause undesirable slip correction events.
• The SERVICE 4WD indicator remains illuminated for the remainder of the current ignition cycle.

C0397 54 

Front axle disengaged.

C0397 58 

Shifting disabled.

C0397 4B

• Max torque commanded for 4WD/AWD Automatic.
• The default actions for C0397 4B will cause DTC C038D to set.

C0397 F3

• Shifting disabled.
• Front axle disengaged.

C0397 F4

• Shifting disabled.
• Front axle disengaged.