P06C7 OBD-II: Cylinder 3 Glow Plug Incorrect

OBD II Fault Code

• OBD II P06C7

OBD-II Code Hard or no start in cold weather is defined as a Cylinder 3 Glow Plug Incorrect

The Glow Plug is used on diesel engines to preheat the cylinder before the engine is started. If the engine control module (PCM) detects the glow plug for cylinder three is not operating properly, the PCM will set code P06C7.

Hard or no start in cold weather Symptoms

• Engine may not start
• Hard or no start in cold weather

Common Problems That Trigger the P06C7 Code

• Glow plug control module failure
• Glow plug failure
• Glow plug wiring harness failure

Common Repairs Needed for the P06C7 Code

• Glow Plug Replacement