P1318 Code - ABS Rough Road Signal Line Stuck At Battery Volts
Quick Answer
The diagnostic trouble code P1318 indicates that the ABS (Antilock Brake System) Rough Road Signal Line is stuck at battery volts. Common causes include Damaged wiring or connectors in the signal line, Faulty ABS rough road sensor, Malfunctioning ABS control module. 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
- P1318 indicates ABS Rough Road Signal Line Stuck At Battery Volts.
- Common causes
- Common causes include Damaged wiring or connectors in the signal line, Faulty ABS rough road sensor, Malfunctioning ABS control module.
- 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 P1318 Description
The diagnostic trouble code P1318 indicates that the ABS (Antilock Brake System) Rough Road Signal Line is stuck at battery volts. This means that there is a malfunction in the signal line that is supposed to communicate information about rough road conditions to the ABS system. When this signal line is stuck at battery volts, the ABS system may not be able to accurately adjust braking pressure based on road conditions, potentially compromising the vehicle's ability to brake effectively and maintain stability during braking on rough surfaces.
Common Causes of P1318
- Damaged wiring or connectors in the signal line
- Faulty ABS rough road sensor
- Malfunctioning ABS control module
- Corrosion or contamination in the ABS system components
- Electrical issues such as a short circuit or open circuit in the ABS system
Symptoms of P1318
- Illumination of the ABS warning light on the dashboard
- Longer than usual braking distances on rough roads
- Increased likelihood of wheel lock-up or skidding during braking
- Decreased overall braking performance on uneven surfaces
- ABS system may engage unexpectedly or fail to engage when needed
How to Fix P1318
- Diagnose the specific cause of the ABS Rough Road Signal Line Stuck at Battery Volts using a diagnostic scanner
- Inspect the wiring, connectors, and sensor for any damage or corrosion
- Test the ABS control module for functionality and potential faults
- Replace any damaged components, such as wiring, sensor, or control module
- Clear the diagnostic trouble code and perform a road test to ensure proper ABS system operation
Cost to Fix P1318
The cost of repairing the ABS Rough Road Signal Line Stuck at Battery Volts can vary depending on the specific cause of the issue and the parts and labor required for the repair. On average, the repair cost for this problem can range from $200 to $500, including parts and labor. However, it's important to note that the actual cost may be higher or lower based on factors such as the vehicle make and model, the extent of the damage, and the rates charged by the auto repair shop. It's recommended to obtain a detailed estimate from a qualified mechanic or auto repair shop to determine the exact cost of addressing this ABS-related issue.
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Code P1318 Information for Specific Makes
- P1318 Acura — Spark Plug Voltage Detection Module Reset Circuit Malfunction Front Bank 2
- P1318 Hyundai — Ignition Coil 3 Low Output
- P1318 Land Rover — ABS Rough Road Signal Line Stuck At Battery Volts
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