Without Scan Tool
NOTE: Only clear DTC's when instructed to do so. All of the diagnostic data that was saved along with the DTC will also be erased when the code is cleared.A scan tool should be used to clear diagnostic trouble codes. When a scan tool is not available, DTCs can also be cleared by disconnecting one of the following sources for at least thirty (30) seconds:
NOTE: When codes are cleared in the following manner, a short period of poor driveablity could result while the processor goes through a relearning process.
Caution: To prevent system damage, the ignition key must be "OFF" when disconnecting or reconnecting battery power.
^ The power source to the control module. Examples: fuse, pigtail at battery ECM 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).