Error code

OBD2 P0676

OBD2P0676
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Cylinder 6 Glow Plug Circuit.

Severity

moderateCan drive, but may experience rough idle and longer cranking times.

Summary

P0676 indicates an issue with the glow plug circuit for cylinder 6 in diesel engines. This code is set when the PCM detects an open or malfunctioning circuit related to this specific glow plug.

Symptoms

  • Longer cranking times in cold weather
  • Rough idle until engine warms up
  • White or black smoke immediately after starting, which clears within seconds

Common Causes

  • Damaged wiring or connectors in the cylinder 6 glow plug circuit
  • Defective glow plug for cylinder 6
  • Faulty glow plug control module

Diagnosis

  1. Inspect wiring and connectors in the cylinder 6 glow plug circuit for damage or corrosion.
  2. Check if the glow plug control module is functioning properly.
  3. Test the glow plug itself to determine if it's faulty.

Fixes

  • Replace damaged wiring, connectors, or the defective glow plug and/or control module.

FAQ

Can I drive with P0676?

Yes, but you may experience rough idle and longer cranking times in cold weather.

What causes P0676?

Common causes include damaged wiring/connectors or a faulty glow plug/control module for cylinder 6.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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