Clearing Trouble Codes
CAUTION:
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. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.
NOTE:
To prevent PCM damage, ensure ignition switch is in OFF position when disconnecting or reconnecting power to PCM.
Diagnostic trouble codes should be cleared after repairs have been completed. Also, some diagnostic procedures require codes to be cleared before performing diagnostic procedure.
To clear codes, use scan tool. With ignition on and engine off, connect a scan tool to Data Link Connector (DLC) located behind left side of dash. See Figure. Refer to scan tool instructions provided by manufacturer for further information.
If no hard fault codes are present (only intermittent codes exist), proceed to TESTS W/O CODES article for intermittent diagnostic procedures.