Clearing Diagnostic Trouble Codes

CAUTION: If vehicle has anti-theft radio, obtain radio anti-theft code before disconnecting battery. When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle.

CAUTION: All data will be lost when DTCs are cleared. Record data that may be needed later, such as freeze frame data, before erasing DTCs.

To clear DTCs using a scan tool, refer to owner's manual supplied with scan tool. If scan tool is not available, DTCs may be cleared by disconnecting negative battery cable or PCM for a few minutes. Reconnect negative battery cable. Start and warm up engine. Run vehicle through appropriate drive cycle(s). Check for DTCs to confirm repair.

DTCs will be automatically erased by PCM under certain conditions:

If non-emission related fault does not reoccur within 51 engine starts.
If emission related fault, except misfire and fuel system lean/rich, does not reoccur in 40 drives.
If misfire or fuel system lean/rich fault does not reoccur in 80 drives.

NOTE: A drive cycle is when engine goes from start to stop and component is monitored in-between. The component's code set criteria must be met while the engine is operating before it will be monitored. Due to this, component may not be monitored every engine start-to-stop cycle.