Clearing Diagnostic Trouble Codes

CAUTION: 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 ECM/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 ECM/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 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.