P1397 Chevrolet Code - Wheel Speed Sensor 2 G-Sensor Circuit Low Voltage
Quick Answer
The P1397 diagnostic trouble code (DTC) for Chevrolet vehicles indicates an issue with the Wheel Speed Sensor 2 G-Sensor Circuit having low voltage. Common causes include Damaged or corroded wiring harness connected to the Wheel Speed Sensor, Faulty Wheel Speed Sensor 2 G-Sensor Circuit, Poor electrical connection or loose connectors. 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
- P1397 Chevrolet indicates Wheel Speed Sensor 2 G-Sensor Circuit Low Voltage.
- Common causes
- Common causes include Damaged or corroded wiring harness connected to the Wheel Speed Sensor, Faulty Wheel Speed Sensor 2 G-Sensor Circuit, Poor electrical connection or loose connectors.
- 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 P1397 Chevrolet Description
The P1397 diagnostic trouble code (DTC) for Chevrolet vehicles indicates an issue with the Wheel Speed Sensor 2 G-Sensor Circuit having low voltage. This sensor is responsible for detecting the rotational speed of the wheel and relaying this information to the vehicle's anti-lock braking system (ABS) and traction control system. When the voltage from the sensor falls below the expected range, it can lead to performance issues and potentially compromise the safety features of the vehicle.
Common Causes of P1397 Chevrolet
- Damaged or corroded wiring harness connected to the Wheel Speed Sensor
- Faulty Wheel Speed Sensor 2 G-Sensor Circuit
- Poor electrical connection or loose connectors
- Sensor contamination or debris affecting its functionality
- Internal sensor malfunction due to wear and tear or component failure
Symptoms of P1397 Chevrolet
- Illumination of the ABS warning light on the dashboard
- Traction control system malfunction or activation
- Erratic braking behavior, such as pulsating brake pedal or extended stopping distances
- Loss of stability or control during braking or cornering
- Unusual noises coming from the wheel area, such as grinding or clicking sounds
How to Fix P1397 Chevrolet
- Begin by conducting a visual inspection of the wiring harness and connectors for any signs of damage, corrosion, or loose connections.
- Use a multimeter to test the voltage output of the Wheel Speed Sensor 2 G-Sensor Circuit to determine if it falls below the specified range.
- If the sensor itself is faulty, replace it with a new OEM or aftermarket unit and ensure proper installation.
- Clear the DTC from the vehicle's onboard diagnostic system using a scan tool to reset the ABS and traction control modules.
- Perform a road test to verify that the issue has been resolved and that the ABS and traction control systems are functioning correctly.
Cost to Fix P1397 Chevrolet
The typical repair costs for addressing a Wheel Speed Sensor 2 G-Sensor Circuit Low Voltage issue can range from $150 to $300, depending on the specific components that need to be replaced and the labor involved. This estimate includes the cost of a new sensor, any necessary wiring harnesses or connectors, and the labor charges for diagnosis and repair. It is important to note that labor rates at auto repair shops can vary, so it is advisable to obtain quotes from multiple sources to ensure a competitive price.
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