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2006 MAZDA MPV
3.0L V6•FWD•AUTOMATIC•gas
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor486Torque3100Fluid7DTC1789Battery1Maintenance0Recalls2
P0676low severityPowertrain

Cylinder 6 Glow Plug Circuit

on 2006 Mazda MPV 3.0L V6 · FWD

What this code means

The PCM detected a fault in the glow plug control circuit for cylinder 6. Faulty glow plugs cause hard starting and rough operation when the engine is cold.

Symptoms

  • Hard starting in cold weather
  • Rough running when cold
  • Warning lamp illuminated

Common causes

  • Faulty glow plug cylinder 6
  • Corroded or broken wiring
  • Bad glow plug control module
  • Blown fuse or relay

Diagnostic steps

  1. Scan for glow plug fault codes
  2. Measure cylinder 6 glow plug resistance
  3. Check harness and connectors
  4. Test control module output voltage
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