GM C code definitions
GM C code definitions
Here are definitions for some C chassis codes from the transfer case on GM vehicles.
C0300: REAR SPEED SENSOR MALFUNCTION
C0305: FRONT SPEED SENSOR MALFUNCTION
C0306: MOTOR A OR B CIRCUIT
C0321: TRANSFER CASE LOCK CIRCUIT
C0327: ENCODER CIRCUIT MALFUNCTION
C0359: FOUR WHEEL DRIVE LOW RANGE (4LO) DISCRETE OUTPUT CIRCUIT
C0374: GENERAL SYSTEM MALFUNCTION
C0379: FRONT AXLE SYSTEM
C0550: ECU MALFUNCTION
© 2012 Rick Muscoplat
Posted on by Rick Muscoplat