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2020 MAZDA MAZDA3
2.5L Skyactiv-G I4 (186 hp)•AWD•AUTOMATIC•gas
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor984Torque6456Fluid16DTC2264Battery2Maintenance0Recalls2
P1000low severityPowertrain

OBD-II Monitor Testing Not Completed

on 2020 Mazda Mazda3 2.5L Skyactiv-G I4 (186 hp) · AWD

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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Other Powertrain codes on this vehicle

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