P0673

Cylinder 3 Glow Plug Circuit Malfunction

Severity: Low Ignition System Generic OBD-II Code Est. Repair: $40 - $150 per plug

Usually safe to drive short-term, but diagnose soon.

Quick Answer

P0673 means “Cylinder 3 Glow Plug Circuit Malfunction.” Severity: Low. Estimated repair cost: $40 - $150 per plug. Most common sign: Harder cold starting.

What Does P0673 Mean?

Diesel-specific glow plug circuit fault, cylinder 3.

Common Symptoms

Harder cold starting
CEL

Possible Causes

Failed glow plug
Wiring issue

How to Fix P0673 – Repair Guide

Test and replace glow plug
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Budgeting for This Repair?

A typical P0673 repair runs about $40 - $150 per plug. If you'd rather spread the cost over time, estimate the payment with our free sister tool: Car Finance Calculator (50-state sales tax, trade-in equity, full amortization).

Recommended OBD2 Scanners & Tools

To read and clear this code yourself, you need a reliable OBD2 scanner. Here are top-rated options:

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ANCEL AD310 Classic Enhanced OBD2 Scanner

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FIXD Bluetooth OBD2 Scanner

Simple plug-and-play sensor that explains codes in plain English via free app. Ideal for first-time users.

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Disclaimer: Information is for educational reference only and does not replace professional diagnosis. Actual causes and costs vary by vehicle make, model, year and condition. Always verify with a qualified technician.