Engine-CodesGeneric – P1376

P1376 Code - Ignition Ground Circuit

Quick Answer

The P1376 code relates to the ignition ground circuit in the vehicle. Common causes include Corrosion or damage to the ignition ground wiring, Loose or disconnected ground connections, Faulty ignition coil. 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 indicates Ignition Ground Circuit.
Common causes
Common causes include Corrosion or damage to the ignition ground wiring, Loose or disconnected ground connections, Faulty ignition coil.
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 06, 2024
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Code P1376 Description

The P1376 code relates to the ignition ground circuit in the vehicle. This code indicates that there is a malfunction in the ground circuit for the ignition system, which can lead to issues with spark plug firing, engine performance, and overall vehicle operation. The ignition ground circuit is responsible for providing a path for the electrical current to flow from the ignition system components to the vehicle's ground, ensuring proper operation of the ignition system. If this circuit is compromised, it can result in misfires, rough idling, poor fuel efficiency, and potentially even engine stalling.

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

Common Causes of P1376

  1. Corrosion or damage to the ignition ground wiring
  2. Loose or disconnected ground connections
  3. Faulty ignition coil
  4. Defective ignition control module
  5. Issues with the engine control module (ECM)

Symptoms of P1376

  1. Engine misfires
  2. Rough idling
  3. Poor fuel efficiency
  4. Engine stalling
  5. Difficulty starting the vehicle

How to Fix P1376

  1. Begin by inspecting the ignition ground wiring for any signs of damage, corrosion, or loose connections. Repair or replace any damaged wiring.
  2. Check and tighten all ground connections related to the ignition system.
  3. Test the ignition coil and ignition control module for proper functioning. Replace any faulty components.
  4. If necessary, diagnose and address any issues with the engine control module (ECM) that may be causing the problem.
  5. Clear the diagnostic trouble codes from the vehicle's computer and test the ignition system to ensure proper operation.

Cost to Fix P1376

The typical repair costs for addressing the P1376 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 can range from $50 to $200, with labor costs adding an additional $100 to $300. Overall, the total cost for resolving this issue could range from $150 to $500. It's important to keep in mind that the actual costs may vary based on factors such as the location of the repair, the make and model of the vehicle, and the labor rates of the repair shop. It's recommended to consult with a trusted mechanic or repair shop for a more accurate cost estimate.

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Code P1376 Information for Specific Makes

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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