Code P1379: Explanation and Solutions
The P1379 code indicates a high voltage issue in the Fuel Injection Control Module (FICM) circuit. This module plays a crucial role in the fuel injection system as it controls the amount of fuel injected into the engine. Higher than normal voltage in the FICM circuit can lead to various malfunctions affecting vehicle performance.
Meaning of Code P1379
- Full Description: High Voltage in Fuel Injection Control Module (FICM) Circuit.
Common Causes of Code P1379
Here are the most common problems associated with this code:
- Damaged wiring or short circuit in the FICM circuit.
- Failure of the Fuel Injection Control Module (FICM).
- Faulty fuel injector.
- Malfunction of the Engine Control Module (ECM).
- Corrosion or damage to the electrical connectors in the system.
Note: This list is not exhaustive. Other factors may also cause the code.
Symptoms Associated with Code P1379
A vehicle affected by this issue may exhibit the following symptoms:
- Irregular or unstable engine idle.
- Frequent misfires.
- Lack of power or difficulty accelerating.
- Reduced fuel efficiency.
- Starting problems or frequent stalling.
Steps to Resolve Code P1379
To fix this issue, follow these steps:
- Confirm the P1379 code using a diagnostic tool and identify the exact cause of the high voltage in the FICM circuit.
- Inspect the wiring and connectors of the FICM circuit for any signs of damage, short circuit, or corrosion. Repair or replace faulty components.
- Test the Fuel Injection Control Module (FICM) to verify its proper operation. Replace it if defective.
- Examine the fuel injectors for blockages or defects that could cause voltage overload. Clean or replace the injectors if necessary.
- Once repairs are completed, clear the error code from the vehicle’s computer system and perform a road test to confirm the issue is resolved.
Conclusion
The P1379 code indicates abnormally high voltage in the FICM module circuit, which can lead to significant engine malfunctions. Thorough inspection and prompt repairs help restore vehicle performance and prevent further issues.