AutoCodes – RAM – P0676 RAM

P0676 RAM Code - Cylinder 6 Glow Plug Circuit Fault

Quick Answer

The glow plug system is used to assist in providing the heat required to begin combustion during cold engine temperatures. Common causes include Faulty cylinder #6 glow plug, Cylinder #6 glow plug harness is open or shorted, Cylinder #6 glow plug circuit poor electrical connection. 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
P0676 RAM indicates Cylinder 6 Glow Plug Circuit Fault.
Common causes
Common causes include Faulty cylinder #6 glow plug, Cylinder #6 glow plug harness is open or shorted, Cylinder #6 glow plug circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 444
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 13, 2021
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P0676 RAM Description

The glow plug system is used to assist in providing the heat required to begin combustion during cold engine temperatures. The glow plugs are heated before and during cranking, as well as initial engine operation. The Engine Control Module (ECM) controls the glow plug ON times by monitoring coolant temperature and glow plug voltage. The California Glow Plug system has eight individual glow plug supply circuits between the controller and the glow plugs. If the feedback voltage from the controller to the ECM is not within range, the ECM sets the OBDII code.
OBDII Code P0676 RAM - Cylinder 6 Glow Plug Circuit Fault - AutoCodes.com
P0676 RAM Code - Cylinder 6 Glow Plug Circuit Fault

What are the Possible Causes of the DTC P0676 RAM?

  • Faulty cylinder #6 glow plug
  • Cylinder #6 glow plug harness is open or shorted
  • Cylinder #6 glow plug circuit poor electrical connection
  • Faulty glow plug module

How to Fix the DTC P0676 RAM?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0676 RAM code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0676 RAM code?

Need more information on how to fix the P0676 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0676 RAM 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 P0676 RAM Code

1. What are the common symptoms of OBDII code P0676 indicating a Cylinder 6 Glow Plug Circuit Fault?

The common symptoms include hard starting, rough idling, misfiring, reduced engine power, and the illumination of the Check Engine light.

2. What are the possible causes of OBDII code P0676 related to the Cylinder 6 Glow Plug Circuit Fault?

Potential causes include a faulty glow plug in cylinder 6, damaged wiring or connectors in the glow plug circuit, a defective glow plug control module, or issues with the engine control module (ECM).

3. How can I diagnose the Cylinder 6 Glow Plug Circuit Fault associated with OBDII code P0676?

Diagnosis typically involves using a multimeter to test the resistance of the glow plug, inspecting the wiring and connectors for damage, checking the glow plug control module for functionality, and scanning the ECM for fault codes.

4. Can I still drive my vehicle with OBDII code P0676 present?

It is not recommended to drive the vehicle with a Cylinder 6 Glow Plug Circuit Fault as it can lead to poor engine performance, reduced fuel efficiency, and potential damage to other engine components.

5. What is the repair process for fixing OBDII code P0676 indicating a Cylinder 6 Glow Plug Circuit Fault?

The repair process usually involves replacing the faulty glow plug in cylinder 6, repairing or replacing damaged wiring and connectors, testing and replacing the glow plug control module if necessary, and clearing the fault code from the ECM.

6. Are there any preventive maintenance tips to avoid OBDII code P0676 in the future?

Routine inspection of the glow plug system during regular maintenance checks can help prevent issues. Additionally, using high-quality glow plugs and ensuring proper installation can also help avoid Cylinder 6 Glow Plug Circuit Faults.

7. How important is it to address OBDII code P0676 promptly?

Addressing OBDII code P0676 promptly is crucial to prevent further damage to the engine and ensure optimal performance. Ignoring the issue can lead to more severe problems and potentially higher repair costs.

8. Can weather conditions affect the performance of glow plugs and trigger OBDII code P0676?

Extreme cold weather can impact the performance of glow plugs, causing them to fail and triggering OBDII code P0676. It is essential to use appropriate glow plugs designed for specific weather conditions.

9. Is it possible for multiple cylinders to experience glow plug circuit faults leading to OBDII code P0676?

Yes, it is possible for multiple cylinders to experience glow plug circuit faults, each triggering a specific OBDII code related to the affected cylinder. Proper diagnosis is necessary to identify and address the issues in each cylinder.

10. Can a DIY enthusiast with automotive knowledge repair OBDII code P0676 at home?

While some DIY enthusiasts with automotive knowledge may be able to replace glow plugs or check wiring connections, diagnosing and repairing complex issues related to OBDII code P0676 may require professional equipment and expertise. It is recommended to consult a qualified mechanic for accurate diagnosis and repair.

Discuss the causes and fixes for P0676 RAM OBDII Code

Code P0676 RAM comments

No comments found for this page.

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