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1997 MAZDA MX-6
2.0L I4•FWD•AUTOMATIC•gas
3 active safety recalls on this vehicle — view recalls
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Repairs0Labor489Torque674Fluid7DTC1603Battery1Maintenance0Recalls3
P1000low severityPowertrain

OBD-II Monitor Testing Not Completed

on 1997 Mazda MX-6 2.0L I4 · FWD

What this code means

The PCM has not completed all OBD-II readiness monitor tests. All emission monitors have not yet run to completion after the battery was disconnected, codes were cleared, or the PCM was replaced. This is not a malfunction code but an informational code.

Symptoms

  • Check Engine Light on briefly
  • No driveability symptoms
  • Failed emissions inspection due to incomplete monitors

Common causes

  • Battery recently disconnected
  • DTCs recently cleared
  • PCM recently reprogrammed or replaced
  • Insufficient drive cycles completed
  • Other DTCs preventing monitor completion

Diagnostic steps

  1. Check for other stored DTCs that may prevent monitors from running
  2. Perform a complete OBD-II drive cycle
  3. Drive cycle requires a mix of city and highway driving
  4. Recheck readiness monitors with scan tool after drive cycle

Repair notes

Complete the OBD-II drive cycle; no repair needed unless other codes are present.

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