Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Clearing Diagnostic Trouble Codes

In order to clear Diagnostic Trouble Codes (DTCs), use the diagnostic scan tool clear DTCs or clear info function. When clearing DTCs follow the instructions supplied by the tool manufacturer. When a scan tool is not available, disconnecting one of the following sources for at least 30 seconds can also clear the DTCs:

NOTE: Turn off the ignition key when disconnecting or reconnecting battery power in order to prevent system damage.

^ The power source to the control module. Examples include the following:
- Fuse
- Pigtail at battery control module connectors etc.
^ The negative battery cable

Disconnecting the negative battery cable may result in the loss of other on-board memory data, such as preset radio tuning.