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P06D0 OBD2: Cylinder 12 Glow Plug Incorrect

P06D0 OBD2: Cylinder 12 Glow Plug Incorrect

What Does the P06D0 Code Mean?

The P06D0 code is triggered when the engine control module (PCM) detects that the glow plug for cylinder twelve is not functioning correctly. This code is specific to diesel engines, where glow plugs are essential for preheating the cylinders before starting the engine.

What Causes the P06D0 Code?

Several factors can lead to the P06D0 code being set, including:

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

What Are the Symptoms of the P06D0 Code?

When the P06D0 code is present, you may experience the following symptoms:

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

How Serious Is the P06D0 Code?

The P06D0 code is classified as urgent, indicating that immediate action is necessary. Ignoring this code can lead to severe engine problems, especially in cold weather where starting may become impossible.

How to Diagnose the P06D0 Code

To properly diagnose the P06D0 code, follow these steps:

  1. Use an OBD-II scanner to confirm the presence of the P06D0 code.
  2. Inspect the glow plug and its wiring harness for damage or corrosion.
  3. Test the glow plug control module for proper operation.
  4. Check the glow plug’s resistance to ensure it is within specifications.

Common Repairs for the P06D0 Code

Common repairs needed to fix the P06D0 code include:

  • Glow plug replacement
  • Glow plug control module replacement
  • Repairing or replacing the wiring harness

How Much Does It Cost to Fix the P06D0 Code?

The cost to repair the P06D0 code can vary depending on the specific issue. On average, you might expect to pay between $100 to $500, depending on whether you need to replace the glow plug, control module, or wiring.

Can I Fix the P06D0 Code Myself?

If you have automotive repair experience and the necessary tools, you may be able to fix the P06D0 code yourself. However, if you are unsure, it is advisable to seek professional assistance to avoid further damage to the vehicle.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

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