AutoCodes – Dodge – P0673 Dodge

P0673 Dodge Code - Cylinder 3 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 #3 Glow Plug, Cylinder #3 Glow Plug harness is open or shorted, Cylinder #3 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: P0673 Dodge indicates Cylinder 3 Glow Plug Circuit Fault.
Common causes: Common causes include Faulty Cylinder #3 Glow Plug, Cylinder #3 Glow Plug harness is open or shorted, Cylinder #3 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 4,428

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 P0673 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 #3 glow plug circuit.

OBDII Code P0673 Dodge - Cylinder 3 Glow Plug Circuit Fault - AutoCodes.com — P0673 Dodge Code - Cylinder 3 Glow Plug Circuit Fault

What does this mean?

What are the Possible Causes of the DTC P0673 Dodge?

Faulty Cylinder #3 Glow Plug
Cylinder #3 Glow Plug harness is open or shorted
Cylinder #3 Glow Plug circuit poor electrical connection
Faulty Glow Plug Module

How to Fix the DTC P0673 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 P0673 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 P0673 Dodge Code

What does the OBDII code P0673 mean for a Dodge vehicle?

1. The P0673 code indicates a fault in the glow plug circuit for cylinder 3, meaning the glow plug isn't heating properly or there’s an issue with its electrical circuit. 2.

What are the common symptoms of P0673 in a Dodge?

Symptoms may include difficulty starting the engine in cold weather, rough idling, reduced fuel efficiency, or an illuminated check engine light. 3.

What causes the P0673 code to appear?

Common causes include a faulty glow plug, damaged glow plug wiring, a bad glow plug control module, or corrosion in the connectors. 4.

Can you drive with the P0673 code active?

It’s possible to drive with this code, but starting the engine may be harder in cold weather, and long-term neglect can lead to further engine issues. 5.

How do you diagnose the P0673 code?

Diagnosing involves checking the glow plug for cylinder 3, testing the wiring and connectors for continuity, and inspecting the glow plug control module for faults. 6.

How do you fix the P0673 code on a Dodge?

Repairs may include replacing the faulty glow plug, repairing or replacing damaged wiring, cleaning corroded connectors, or replacing the glow plug control module if necessary. 7.

How much does it cost to fix the P0673 code?

The cost varies, but replacing a single glow plug typically ranges from $50 to $150, including parts and labor. Additional repairs to wiring or the control module may increase the cost. 8.

Can a faulty glow plug cause engine damage?

While a faulty glow plug won’t directly harm the engine, prolonged issues with cold starts or incomplete combustion can lead to other engine problems over time. 9.

What tools are needed to fix a P0673 code?

Basic tools include a multimeter for testing electrical circuits, a socket set for removing the glow plug, and possibly a diagnostic scanner to clear the code after repairs. 10.

Does clearing the P0673 code fix the problem?

Clearing the code doesn’t fix the underlying issue. The root cause, such as a faulty glow plug or damaged wiring, must be addressed to prevent the code from returning.