Code P1376 Description Buick
The Buick P1376 code is related to a problem with the vehicle’s ignition ground circuit. The ignition system is an essential component responsible for creating the spark needed to ignite the air-fuel mixture in the engine cylinders. The ground circuit plays a crucial role in ensuring the proper operation of the ignition system by providing a path for the electrical current to return to the battery.
Common Causes of Buick Code P1376
NOTE: The listed causes may not be a complete list of all potential issues, and there may be other causes.
- Faulty ignition coil
- Loose or corroded ground connections
- Damaged wiring or connectors in the ignition system
- Problems with the ignition control module
- Electrical issues in the vehicle’s system
Symptoms of Buick Code P1376
- Engine misfires
- Rough idling
- Difficulty starting the vehicle
- Decreased fuel efficiency
- Increased emissions
How to Fix Buick Code P1376
- Inspect and test the ignition coil to ensure it is functioning properly.
- Check all ground connections for tightness and corrosion, clean or tighten them as needed.
- Inspect the ignition system wiring and connectors for any damage or wear, and replace them if necessary.
- Test the ignition control module to determine if it is causing the issue and replace it if faulty.
- Clear the diagnostic codes and test the vehicle to ensure the problem has been resolved.