Operation CHARM: Car repair manuals for everyone.

Diagnostic Trouble Code Tests and Associated Procedures

4X4 Control Module DTC Chart

NOTE: After repairing the cause of the four wheel drive (4WD) system faults, the engine must be started in order to clear the 4X4 control module DTCs.

B1317-B2477 / C1728:




C1729 / P0500-P1877: