P1390 Chevrolet Code - Wheel Speed Sensor 1 G-Sensor Circuit
Quick Answer
The P1390 Chevrolet diagnostic trouble code indicates a problem with the Wheel Speed Sensor 1 G-Sensor Circuit. Common causes include Faulty wheel speed sensor 1, Damaged or corroded wiring in the sensor circuit, Issues with the G-sensor. 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
- P1390 Chevrolet indicates Wheel Speed Sensor 1 G-Sensor Circuit.
- Common causes
- Common causes include Faulty wheel speed sensor 1, Damaged or corroded wiring in the sensor circuit, Issues with the G-sensor.
- 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 P1390 Chevrolet Description
The P1390 Chevrolet diagnostic trouble code indicates a problem with the Wheel Speed Sensor 1 G-Sensor Circuit. The wheel speed sensor is a crucial component of the vehicle's anti-lock braking system (ABS) and traction control system. This sensor detects the rotational speed of the wheels and sends this information to the vehicle's electronic control unit (ECU) to help maintain traction and stability during braking and acceleration.
Common Causes of P1390 Chevrolet
- Faulty wheel speed sensor 1
- Damaged or corroded wiring in the sensor circuit
- Issues with the G-sensor
- ECU malfunction
- Electrical interference or short circuits in the circuit
Symptoms of P1390 Chevrolet
- ABS warning light illuminated on the dashboard
- Traction control system malfunction
- Loss of stability during braking
- Uneven braking or braking pulsation
- Difficulty maintaining traction on slippery surfaces
How to Fix P1390 Chevrolet
- Diagnose the issue using a scan tool to confirm the P1390 code and pinpoint the specific cause of the problem.
- Inspect the wheel speed sensor 1 and the G-sensor for any damage or corrosion. Replace any faulty components.
- Check the wiring harness for any breaks, corrosion, or loose connections. Repair or replace damaged wiring as needed.
- Clear the trouble code from the ECU and perform a road test to ensure the issue has been resolved.
- If the problem persists, further diagnostic testing may be required to identify any underlying issues with the ABS or traction control systems.
Cost to Fix P1390 Chevrolet
The typical repair costs for addressing a P1390 Chevrolet code can vary depending on the specific cause of the issue and the labor rates in your area. In general, replacing a faulty wheel speed sensor or repairing wiring issues can cost between $150 to $300, including parts and labor. However, the total cost may increase if additional components need to be replaced or if more extensive diagnostic testing is required. It's recommended to obtain quotes from local auto repair shops to get a more accurate estimate based on your vehicle make and model.
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