P1399 Chevrolet Code - Wheel Speed Sensor 2 G-Sensor Circuit Intermittent
Quick Answer
The P1399 code for Chevrolet indicates an issue with the Wheel Speed Sensor 2 G-Sensor Circuit being intermittent. Common causes include Faulty wheel speed sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or debris affecting the sensor's performance. 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
- P1399 Chevrolet indicates Wheel Speed Sensor 2 G-Sensor Circuit Intermittent.
- Common causes
- Common causes include Faulty wheel speed sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or debris affecting the sensor's performance.
- 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 P1399 Chevrolet Description
The P1399 code for Chevrolet indicates an issue with the Wheel Speed Sensor 2 G-Sensor Circuit being intermittent. This sensor is a crucial component of the vehicle's anti-lock braking system (ABS) and traction control system. The wheel speed sensors are responsible for monitoring the speed of each wheel and sending this information to the vehicle's electronic control unit (ECU). The G-sensor, also known as the lateral accelerometer, measures the vehicle's lateral acceleration during cornering.
Common Causes of P1399 Chevrolet
- Faulty wheel speed sensor
- Damaged wiring or connectors in the sensor circuit
- Corrosion or debris affecting the sensor's performance
- ECU software or hardware issues
- Impact or damage to the sensor from road debris or accidents
Symptoms of P1399 Chevrolet
- ABS warning light illuminated on the dashboard
- Traction control system warning light activated
- Loss of traction control during acceleration or cornering
- Inconsistent brake performance, such as pulsating brake pedal
- Unusual noises coming from the wheels during braking
How to Fix P1399 Chevrolet
- Begin by conducting a visual inspection of the wheel speed sensor, wiring, and connectors to check for any visible damage or corrosion.
- Use a multimeter to test the wheel speed sensor's resistance and voltage output to determine if it is functioning within the manufacturer's specifications.
- If the sensor is faulty, replace it with a new OEM (original equipment manufacturer) sensor.
- Inspect and repair any damaged wiring or connectors in the sensor circuit.
- Clear the diagnostic trouble codes (DTCs) from the ECU using a scan tool and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1399 Chevrolet
The cost of repairing a Wheel Speed Sensor 2 G-Sensor Circuit Intermittent issue can vary depending on the specific cause of the problem and the labor rates at the auto repair shop. On average, the parts for a wheel speed sensor replacement can range from $50 to $200, while the labor cost can be anywhere from $80 to $150 per hour. Therefore, the total repair cost for this issue can range from $150 to $500 or more. It's recommended to get a detailed quote from a trusted auto repair shop to get an accurate estimate based on your vehicle make and model.
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