AutoCodes – Dodge – P0671 Dodge

P0671 Dodge Code - Cylinder 1 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 #1 Glow Plug, Cylinder #1 Glow Plug harness is open or shorted, Cylinder #1 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: P0671 Dodge indicates Cylinder 1 Glow Plug Circuit Fault.
Common causes: Common causes include Faulty Cylinder #1 Glow Plug, Cylinder #1 Glow Plug harness is open or shorted, Cylinder #1 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.

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Code Popularity 5,427

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 13, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0671 Dodge 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 glow plug system has 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. The Diagnostic Trouble Code (DTC) will set if the Engine Control Module has detected a fault in the cylinder #1 glow plug circuit.

OBDII Code P0671 Dodge - Cylinder 1 Glow Plug Circuit Fault - AutoCodes.com — P0671 Dodge Code - Cylinder 1 Glow Plug Circuit Fault

What does this mean?

What are the Possible Causes of the DTC P0671 Dodge?

Faulty Cylinder #1 Glow Plug
Cylinder #1 Glow Plug harness is open or shorted
Cylinder #1 Glow Plug circuit poor electrical connection
Faulty Glow Plug Module

How to Fix the DTC P0671 Dodge?

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 P0671 Dodge 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.

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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.

Frequently Asked Questions about P0671 Dodge Code

1. What are the common symptoms of OBDII code P0671 in a Dodge related to the Cylinder 1 Glow Plug Circuit Fault?

- Common symptoms include rough idling, difficulty starting the engine, and the Malfunction Indicator Lamp (MIL) illuminating on the dashboard.

2. What are the possible causes of OBDII code P0671 in a Dodge indicating a Cylinder 1 Glow Plug Circuit Fault?

- Possible causes include a faulty glow plug in cylinder 1, damaged wiring or connectors in the glow plug circuit, or a malfunctioning glow plug control module.

3. How can I diagnose the Cylinder 1 Glow Plug Circuit Fault causing OBDII code P0671 in my Dodge?

- Diagnosing this issue involves checking the resistance of the glow plug, inspecting the wiring for any damage, and testing the glow plug control module for proper functionality.

4. Can I still drive my Dodge if OBDII code P0671 related to the Cylinder 1 Glow Plug Circuit Fault is present?

- It is not recommended to drive the vehicle with this code active, as it can lead to poor engine performance and potential damage if left unresolved.

5. How can I repair the Cylinder 1 Glow Plug Circuit Fault triggering OBDII code P0671 in my Dodge?

- Repair typically involves replacing the faulty glow plug in cylinder 1, repairing any damaged wiring or connectors, or replacing the glow plug control module if necessary.

6. Are there any preventive maintenance tips to avoid OBDII code P0671 in a Dodge due to a Cylinder 1 Glow Plug Circuit Fault?

- Regularly inspecting the glow plug system, following the manufacturer's recommended maintenance schedule, and using high-quality glow plugs can help prevent this issue.

7. Can a DIY enthusiast fix OBDII code P0671 related to the Cylinder 1 Glow Plug Circuit Fault in a Dodge?

- While some basic troubleshooting can be done by DIY enthusiasts, diagnosing and repairing this issue may require specialized tools and knowledge, so it's best to consult a professional mechanic.

8. Is it possible for a loose connection to cause OBDII code P0671 in a Dodge indicating a Cylinder 1 Glow Plug Circuit Fault?

- Yes, a loose or corroded connection in the glow plug circuit can disrupt the proper operation of the glow plug in cylinder 1, triggering this fault code.

9. Will resetting the OBDII code P0671 related to the Cylinder 1 Glow Plug Circuit Fault in my Dodge make it go away permanently?

- Simply resetting the code without addressing the underlying issue will not fix the problem permanently. It's essential to diagnose and repair the root cause to prevent the code from reoccurring.

10. How important is it to address OBDII code P0671 in a Dodge indicating a Cylinder 1 Glow Plug Circuit Fault promptly?

- It is crucial to address this issue promptly to prevent further engine damage, ensure proper combustion, and maintain the overall performance and efficiency of the vehicle.