C0393 GMC
Rear Axle Coupling Solenoid Control Circuit
GMC
C0387 GMC
Unable To Perform Shift
C0388 GMC
Rear Differential Lock Actuator
C0374 GMC
Transfer Case System Malfunction
C0378 GMC
Front Axle Switch Circuit Signal Invalid
C0379 GMC
Front Axle System Malfunction
C0329 GMC
Transfer Case Encoder Signal Circuit Low
C0359 GMC
Four Wheel Drive Low Range
C0323 GMC
Open Lock Control Circuit
C0324 GMC
Shorted Lock Solenoid Coil