PCM Reset

How to Reset the PCM




You can reset the PCM in either of 2 ways:
- Use the HDS or a scan tool to reset the PCM's memory.
See the HDS or a scan tool user's manuals for specific instructions.
- Turn the ignition switch OFF, and remove the No.6 ECU (PCM) (15 A) fuse (A) from the under-hood fuse/relay box (B) for 10 seconds.

NOTE: If the low fuel indicator is blinking, the PCM cannot be reset with the HDS or a scan tool. To reset the PCM, do the low fuel indicator troubleshooting.

How to End a Troubleshooting Session (required after any troubleshooting)

1. Reset the PCM as described.
2. Do the PCM idle learn procedure.
3. Turn the ignition switch OFF.
4. Disconnect the HDS or a scan tool from the DLC.

NOTE: The PCM is part of the immobilizer system. If you replace the PCM, it will have a different immobilizer code. In order for the engine to start, you must rewrite the immobilizer code with the HDS.