Engine-Codes.com
Engine-Codes – Volvo – P0670 Volvo

P0670 Volvo Code - Glow Plug Control Module 1 Control Circuit/Open

Quick Answer

The P0670 code for Volvo vehicles indicates a problem with the Glow Plug Control Module 1 Control Circuit, specifically that it is open or not functioning properly. Common causes include Faulty Glow Plug Control Module, Wiring issues or loose connections in the control circuit, Failed glow plugs. 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 Volvo indicates Glow Plug Control Module 1 Control Circuit/Open.
Common causes
Common causes include Faulty Glow Plug Control Module, Wiring issues or loose connections in the control circuit, Failed glow plugs.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0670 Volvo Description

The P0670 code for Volvo vehicles indicates a problem with the Glow Plug Control Module 1 Control Circuit, specifically that it is open or not functioning properly. Glow plugs are essential components in diesel engines, as they help to heat up the combustion chamber for easier starting in cold weather conditions. The Glow Plug Control Module is responsible for regulating the glow plugs' operation, ensuring they are activated at the right time and for the right duration.

OBDII Code P0670 Volvo - Glow Plug Control Module 1 Control Circuit/Open
P0670 Volvo Code - Glow Plug Control Module 1 Control Circuit/Open

Common Causes of P0670 Volvo

  1. Faulty Glow Plug Control Module.
  2. Wiring issues or loose connections in the control circuit.
  3. Failed glow plugs.
  4. Corrosion or damage to electrical components.
  5. Issues with the vehicle's battery or charging system.

Symptoms of P0670 Volvo

  1. Difficulty starting the engine, especially in cold weather.
  2. Rough idling or misfiring when the engine is running.
  3. Decreased fuel efficiency.
  4. Illumination of the check engine light on the dashboard.
  5. Engine performance issues, such as lack of power or acceleration.

How to Fix P0670 Volvo

  1. Begin by diagnosing the specific cause of the P0670 code using a diagnostic scanner to pinpoint the exact issue.
  2. Check the wiring and connections in the glow plug control circuit for any damage or corrosion, repairing or replacing as needed.
  3. Test the glow plugs themselves to ensure they are functioning correctly, replacing any that are faulty.
  4. Inspect the Glow Plug Control Module for any signs of damage or malfunction, replacing it if necessary.
  5. Clear the diagnostic trouble codes from the vehicle's computer system and test the vehicle to ensure the issue has been resolved.

Cost to Fix P0670 Volvo

The cost of repairing the Glow Plug Control Module 1 Control Circuit/Open issue can vary depending on the specific cause of the problem and the vehicle's make and model. Generally, replacement parts such as a new control module or glow plugs can range from $100 to $500. Labor costs at auto repair shops typically range from $80 to $150 per hour, and the total repair cost can be anywhere from $200 to $800 or more. It's recommended to consult with a trusted mechanic or dealership for a more accurate estimate based on your specific vehicle.

Need more information about the P0670 Volvo code?

Need more information on how to fix the P0670 Volvo code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0670 Volvo code diagnosed by a professional: Find a repair shop in your area

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.

Frequently Asked Questions about P0670 Volvo Code

1. What are the common symptoms of OBDII code P0670 in a Volvo related to the Glow Plug Control Module 1 Control Circuit/Open?

- Common symptoms include hard starting, rough idling, poor fuel economy, and the Check Engine Light illuminating on the dashboard.

2. What are the possible causes of OBDII code P0670 indicating a Glow Plug Control Module 1 Control Circuit/Open in a Volvo?

- Possible causes include a faulty glow plug control module, damaged wiring or connectors, blown fuses, or issues with the glow plugs themselves.

3. How can I diagnose the Glow Plug Control Module 1 Control Circuit/Open issue in my Volvo with OBDII code P0670?

- A diagnostic scan tool can help pinpoint the exact cause of the issue by reading the trouble codes and identifying the specific component or circuit that needs attention.

4. Can I continue driving my Volvo with OBDII code P0670 related to the Glow Plug Control Module 1 Control Circuit/Open?

- It is not recommended to drive the vehicle with this issue as it can lead to further damage and potential engine performance problems.

5. How can I repair the Glow Plug Control Module 1 Control Circuit/Open problem in my Volvo triggering OBDII code P0670?

- Repair involves inspecting and testing the glow plug control module, checking the wiring for any damage, replacing faulty components, and clearing the trouble code with a diagnostic tool.

6. Are there any tips for preventing the recurrence of OBDII code P0670 in my Volvo after repairing the Glow Plug Control Module 1 Control Circuit/Open issue?

- Regular maintenance, including checking the glow plug system during service intervals, can help prevent the recurrence of this issue. Additionally, using high-quality glow plugs and components can improve longevity.

7. Can a DIY enthusiast without advanced automotive knowledge fix the Glow Plug Control Module 1 Control Circuit/Open problem causing OBDII code P0670 in a Volvo?

- While some basic mechanical skills are required, it is recommended to seek assistance from a professional mechanic or technician to properly diagnose and repair this issue due to the complexity of the electrical system involved.

8. Is it possible for a faulty glow plug to trigger OBDII code P0670 indicating a Glow Plug Control Module 1 Control Circuit/Open in a Volvo?

- Yes, a faulty glow plug can sometimes cause this error code to appear as the glow plug control module may detect an issue with the circuit due to a malfunctioning glow plug.

9. How long does it typically take to repair the Glow Plug Control Module 1 Control Circuit/Open problem associated with OBDII code P0670 in a Volvo?

- The repair time can vary depending on the exact cause of the issue, but it generally takes a few hours to diagnose, locate the problem, and perform the necessary repairs.

10. Are there any recalls or service bulletins related to OBDII code P0670 specifically for Volvo vehicles experiencing Glow Plug Control Module 1 Control Circuit/Open issues?

- It's advisable to check with Volvo authorized service centers or the manufacturer's website for any recalls or service bulletins related to this specific problem to ensure that all necessary repairs are addressed.

Discuss the causes and fixes for P0670 Volvo OBDII Code

Submit a New Comment

Code P0670 Volvo comments

No comments found for this page.