P1391 Honda Code - G-Sensor Performance Problem
Quick Answer
The P1391 code for Honda vehicles indicates a G-Sensor Performance Problem. Common causes include Faulty G-Sensor or lateral acceleration sensor, Damaged wiring or connectors in the stability control system, Corrosion or contamination affecting sensor readings. 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
- P1391 Honda indicates G-Sensor Performance Problem.
- Common causes
- Common causes include Faulty G-Sensor or lateral acceleration sensor, Damaged wiring or connectors in the stability control system, Corrosion or contamination affecting sensor readings.
- 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.
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Code P1391 Honda Description
The P1391 code for Honda vehicles indicates a G-Sensor Performance Problem. The G-Sensor, also known as the lateral acceleration sensor, is a crucial component in the vehicle's stability control system. It measures the lateral forces acting on the vehicle during cornering, braking, and acceleration, allowing the system to adjust the vehicle's stability and traction control accordingly.
Common Causes of P1391 Honda
- Faulty G-Sensor or lateral acceleration sensor
- Damaged wiring or connectors in the stability control system
- Corrosion or contamination affecting sensor readings
- Electronic control unit (ECU) issues or software glitches
- Physical damage to the sensor from external factors or accidents
Symptoms of P1391 Honda
- Illumination of the Check Engine Light
- Loss of stability control or traction control functions
- Erratic or inconsistent handling during maneuvers
- Unusual noises or vibrations from the stability control system
- Difficulty maintaining control on slippery or uneven road surfaces
How to Fix P1391 Honda
- Diagnose the G-Sensor using a scan tool to verify the P1391 code and assess sensor readings.
- Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as necessary.
- Test the G-Sensor's functionality by performing calibration procedures or sensor tests.
- Replace the G-Sensor if it is found to be faulty or providing inaccurate readings.
- Clear the code and perform a test drive to ensure the issue is resolved and the stability control system is functioning correctly.
Cost to Fix P1391 Honda
The cost of repairing a G-Sensor Performance Problem (P1391) in a Honda vehicle can vary depending on the specific model and year of the vehicle, as well as the labor rates at the auto repair shop. On average, the repair cost for this issue can range from $200 to $500, including parts and labor. It is recommended to obtain quotes from multiple repair shops to compare prices and ensure a fair estimate. Additionally, factors such as diagnostic time and any additional repairs or adjustments may affect the overall cost of the repair.
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