Clearing Diagnostic Trouble Codes
CAUTION:
To prevent damage to PCM when clearing Diagnostic Trouble Codes (DTCs), ignition switch must be in LOCK position when disconnecting and connecting power to PCM.
NOTE:
Do not clear DTCs until directed by diagnostic procedure. When DTCs are cleared, FREEZE FRAME data which could be used for intermittent fault diagnosis, will also be erased from memory.
To clear DTCs from memory, use scan tool, following scan tool manufacturer's instructions. DTCs can also be cleared by disconnecting power supply to PCM for at least 30 seconds.
PCM will clear stored DTC if fault that caused DTC to set is not detected for 40 consecutive warm-up cycles.