Clearing Codes Without Scan Tool
NOTE:
Clearing code procedure will clear the following:
- Diagnostic trouble codes.
- 1st trip diagnostic trouble codes.
- Freeze frame data.
- 1st trip freeze frame data.
- System readiness codes.
- Test values.
- Other values relative to specific model.
Ensure necessary freeze frame data and diagnostic trouble codes are recorded prior to clearing diagnostic information. Turning ignition off when in Mode 2 will not clear codes. Clear code procedure must be used. All diagnostic information will be erased if battery is disconnected for more than 24 hours.
Enter diagnostic Mode 2 as described in RETRIEVING CODES . After retrieving codes in Mode II, turn test mode selector fully clockwise. Wait at least 2 seconds. Turn test mode selector fully counterclockwise. This will be erase DTCs from memory by switching PCM mode selector from diagnostic Mode 2, back to diagnostic Mode 1.