C1239 2018 Chevrolet Silverado Code - Brake Pressure Sensor 1/2 Correlation
Quick Answer
The C1239 code on a 2018 Chevrolet Silverado indicates a problem with the correlation between Brake Pressure Sensor 1 and Brake Pressure Sensor 2. Common causes include Faulty brake pressure sensors, Wiring issues or poor connections in the sensor circuit, Air in the brake lines affecting pressure 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
- C1239 2018 Chevrolet Silverado indicates Brake Pressure Sensor 1/2 Correlation.
- Common causes
- Common causes include Faulty brake pressure sensors, Wiring issues or poor connections in the sensor circuit, Air in the brake lines affecting pressure 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 C1239 2018 Chevrolet Silverado Description
The C1239 code on a 2018 Chevrolet Silverado indicates a problem with the correlation between Brake Pressure Sensor 1 and Brake Pressure Sensor 2. The brake pressure sensors are responsible for monitoring the hydraulic pressure within the braking system to ensure proper braking performance. When there is a correlation issue between these sensors, it can lead to inconsistencies in brake pressure readings, potentially affecting the vehicle's braking performance.
Common Causes of C1239 2018 Chevrolet Silverado
- Faulty brake pressure sensors
- Wiring issues or poor connections in the sensor circuit
- Air in the brake lines affecting pressure readings
- Brake fluid leaks impacting sensor accuracy
- Brake master cylinder failure affecting hydraulic pressure distribution
Symptoms of C1239 2018 Chevrolet Silverado
- Illuminated ABS warning light on the dashboard
- Increased stopping distance when braking
- Brake pedal feels spongy or unresponsive
- Uneven braking or pulling to one side when braking
- ABS system engaging unexpectedly or excessively
How to Fix C1239 2018 Chevrolet Silverado
- Diagnose the specific cause of the correlation error by performing a comprehensive brake system inspection and testing the brake pressure sensors.
- Replace any faulty brake pressure sensors or repair wiring/connectivity issues in the sensor circuit.
- Bleed the brake system to remove any air bubbles that may be affecting pressure readings.
- Check for and repair any brake fluid leaks in the system.
- Inspect and potentially replace the brake master cylinder if it is found to be failing and impacting brake pressure distribution.
Cost to Fix C1239 2018 Chevrolet Silverado
The cost of repairing a Brake Pressure Sensor 1/2 Correlation issue can vary depending on the specific cause of the problem and the extent of the repairs needed. On average, the cost of replacing a brake pressure sensor can range from $100 to $200 per sensor, including parts and labor. Additional costs may be incurred for diagnosing and repairing wiring issues, bleeding the brake system, or replacing the brake master cylinder. It is recommended to get a detailed quote from a reputable auto repair shop, considering factors such as location, make and model of the vehicle, and the severity of the issue.
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