Engine-CodesGMC – P1376 GMC

P1376 GMC Code - Ignition Ground Circuit

Quick Answer

The P1376 GMC code refers to an issue with the ignition ground circuit in a GMC vehicle. Common causes include Faulty wiring connections, Corroded or damaged ground wires, Malfunctioning ignition control module. 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
P1376 GMC indicates Ignition Ground Circuit.
Common causes
Common causes include Faulty wiring connections, Corroded or damaged ground wires, Malfunctioning ignition control module.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1376 GMC Description

The P1376 GMC code refers to an issue with the ignition ground circuit in a GMC vehicle. The ignition ground circuit is a critical component of the vehicle's ignition system, responsible for providing a stable ground connection for the ignition system components. A proper ground connection is essential for the ignition system to function correctly, as it ensures that the necessary electrical current can flow through the system.

OBDII Code P1376 GMC - Ignition Ground Circuit
P1376 GMC Code - Ignition Ground Circuit

Common Causes of P1376 GMC

  1. Faulty wiring connections
  2. Corroded or damaged ground wires
  3. Malfunctioning ignition control module
  4. Faulty ignition coil
  5. Electrical system issues

Symptoms of P1376 GMC

  1. Engine misfires
  2. Rough idling
  3. Difficulty starting the engine
  4. Poor acceleration
  5. Increased fuel consumption

How to Fix P1376 GMC

  1. Conduct a thorough inspection of the ignition ground circuit to identify any damaged or corroded wires.
  2. Test the ignition control module and ignition coil for proper functionality.
  3. Repair or replace any faulty wiring connections or damaged ground wires.
  4. Replace the ignition control module or ignition coil if they are found to be malfunctioning.
  5. Clear the diagnostic trouble codes and test the vehicle to ensure the issue has been resolved.

Cost to Fix P1376 GMC

The typical repair costs for addressing the P1376 GMC code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair could range from $100 to $500, with labor costs adding an additional $100 to $300. Additionally, diagnostic time and labor rates at auto repair shops can vary significantly, with hourly rates typically ranging between $80 and $150. It is advisable to check with local auto repair shops for a more precise estimate based on the vehicle's make and model, as well as the severity of the issue.

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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.

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