Engine-CodesChrysler – P0670 Chrysler

P0670 Chrysler Code - Glow Plug Control Module Circuit Fault

Quick Answer

The P0670 diagnostic trouble code (DTC) for Chrysler vehicles indicates a fault in the glow plug control module circuit. Common causes include Faulty glow plug control module, Damaged wiring or connectors in the glow plug circuit, Corrosion or poor connections in the glow plug system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0670 Chrysler indicates Glow Plug Control Module Circuit Fault.
Common causes
Common causes include Faulty glow plug control module, Damaged wiring or connectors in the glow plug circuit, Corrosion or poor connections in the glow plug system.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P0670 Chrysler Description

The P0670 diagnostic trouble code (DTC) for Chrysler vehicles indicates a fault in the glow plug control module circuit. The glow plug control module is an essential component in diesel engines, as it is responsible for managing the glow plugs' operation. Glow plugs are used to heat the combustion chamber in diesel engines, aiding in cold starts by ensuring proper ignition of the fuel-air mixture. When the glow plug control module circuit malfunctions, it can lead to difficulties starting the engine, reduced fuel efficiency, and potential engine misfires.

OBDII Code P0670 Chrysler - Glow Plug Control Module Circuit Fault
P0670 Chrysler Code - Glow Plug Control Module Circuit Fault

Common Causes of P0670 Chrysler

  1. Faulty glow plug control module.
  2. Damaged wiring or connectors in the glow plug circuit.
  3. Corrosion or poor connections in the glow plug system.
  4. Issues with the glow plugs themselves.
  5. Electrical system failures or malfunctions.

Symptoms of P0670 Chrysler

  1. Difficulty starting the engine, especially in cold weather.
  2. Illumination of the Check Engine Light on the dashboard.
  3. Rough idling or engine misfires.
  4. Reduced fuel efficiency.
  5. Engine hesitation or lack of power.

How to Fix P0670 Chrysler

  1. Diagnose the specific cause of the circuit fault using a diagnostic scanner.
  2. Inspect the glow plug control module, wiring, and connectors for any visible damage or corrosion.
  3. Test the glow plugs to ensure they are functioning correctly.
  4. Replace any faulty components, such as the glow plug control module or damaged wiring.
  5. Clear the DTC and perform a test drive to verify that the issue has been resolved.

Cost to Fix P0670 Chrysler

The typical repair costs for addressing a glow plug control module circuit fault can range from $200 to $500, including parts and labor. However, it's important to note that the actual cost may vary depending on the specific diagnosis time, parts required, and labor rates at the auto repair shop. Additionally, factors such as the vehicle make and model, as well as the engine type, can also influence the final repair cost. It's recommended to consult with a qualified mechanic or technician to obtain a more accurate estimate based on your vehicle's individual circumstances.

When is the Code Detected?

The Engine Control Module (ECM) has detected a fault on the Glow Plug Control Module (GPCM) control circuit

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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