Reprogram error recovery procedure for both immobilizer unit and PCM replacement
WARNING: This page is about a different car, the 2005 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- If no specific time interval is given, each step should be performed within 30 seconds of the previous step.
- Using key 1, start engine. After security light illuminates for 1-2 seconds , turn key 1 to LOCK position.
- Using key 1, turn ignition switch to ON position then back to LOCK position five times. Key should not remain at ON position or LOCK position for more than 1 second.
- Using key 1, turn ignition switch to ON position (security light illuminates).
- Turn key 1 to LOCK position and remove from steering lock (security light goes out).
- Using key 2, start engine. Observe that security light illuminates (for 1-2 seconds ) and engine continues to run.
- Turn key 2 to LOCK position and remove from steering lock.
- Repeat Steps 5 and 6 with key 1.
- Repeat Steps 5 and 6 with key 3.
- If there are 4-8 keys (valid and/or new keys), repeat Steps 5 and 6.
- Wait for 30 seconds to quit reprogram mode.
- After reprogramming, clear DTCs of PCM with WDS or equivalent.