Operation CHARM: Car repair manuals for everyone.

Clearing Trouble Codes



Important: To prevent any future misdiagnosis, all history DTCs should be cleared after diagnosing a system problem.

Disconnecting the battery or module connectors will not clear a history DTC. A DTC can only be cleared by using one of the following methods:
^ A scan tool.
^ A module may clear a history DTC after 50 ignition cycles.

All the diagnostic tables refer to the scan tool for diagnostic support.