P0318 Code - Rough Road Sensor 'A' Signal Circuit
Quick Answer
The diagnostic trouble code P0318 indicates a problem with the Rough Road Sensor 'A' Signal Circuit. Common causes include Faulty rough road sensor, Damaged wiring harness, Corrosion or poor connections in the sensor circuit. 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
- P0318 indicates Rough Road Sensor 'A' Signal Circuit.
- Common causes
- Common causes include Faulty rough road sensor, Damaged wiring harness, Corrosion or poor connections in the sensor circuit.
- 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 P0318 Description
The diagnostic trouble code P0318 indicates a problem with the Rough Road Sensor 'A' Signal Circuit. This sensor is responsible for detecting when the vehicle is driving on rough terrain or uneven surfaces. The signal circuit is designed to provide feedback to the vehicle's computer system, allowing it to adjust various parameters such as suspension settings, traction control, and transmission shifting to optimize performance and stability on rough roads.
Common Causes of P0318
- Faulty rough road sensor
- Damaged wiring harness
- Corrosion or poor connections in the sensor circuit
- Issues with the vehicle's computer system
- Environmental factors such as water or debris affecting the sensor
Symptoms of P0318
- Rough idling or engine misfires
- Poor acceleration or hesitation
- Decreased fuel efficiency
- Unstable or rough ride quality
- Illumination of the Check Engine Light
How to Fix P0318
- Diagnose the issue by using a scan tool to read the trouble code and inspect the rough road sensor and wiring.
- Replace the faulty rough road sensor if it is determined to be the cause of the issue.
- Repair or replace any damaged wiring harness or connectors in the sensor circuit.
- Clear the trouble code from the vehicle's computer system and test drive the vehicle to ensure the issue has been resolved.
- Perform a final inspection to verify proper sensor operation and system functionality.
Cost to Fix P0318
The cost of repairing a Rough Road Sensor 'A' Signal Circuit issue can vary depending on the specific cause of the problem and the labor rates in your area. Typically, the cost of a new rough road sensor can range from $50 to $150, while the cost of labor for diagnosis and repair can range from $100 to $300. Overall, you can expect to pay anywhere from $150 to $450 for this repair, but it's advisable to check with local auto repair shops for more accurate pricing based on your vehicle make and model. Keep in mind that rates at dealerships or in metropolitan areas may be higher, while independent shops may offer more competitive pricing.
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Code P0318 Information for Specific Makes
- P0318 Audi — Rough Road Sensor 'A' Signal Circuit
- P0318 Ford — Rough Road Sensor 'A' Signal Circuit
- P0318 Volkswagen — Rough Road Sensor 'A' Signal Circuit
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