P0859 Code - Traction Control Input Signal High
Quick Answer
The P0859 code indicates that there is a high input signal detected in the traction control system of the vehicle. Common causes include Faulty traction control module, Damaged wiring or connectors in the traction control circuit, Malfunctioning wheel speed 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
- P0859 indicates Traction Control Input Signal High.
- Common causes
- Common causes include Faulty traction control module, Damaged wiring or connectors in the traction control circuit, Malfunctioning wheel speed 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 P0859 Description
The P0859 code indicates that there is a high input signal detected in the traction control system of the vehicle. The traction control system is responsible for helping to maintain traction and stability while driving, especially in slippery conditions. When this code is triggered, it means that there is a problem with the input signal that the traction control system is receiving, which can lead to issues with the system's functionality.
Common Causes of P0859
- Faulty traction control module
- Damaged wiring or connectors in the traction control circuit
- Malfunctioning wheel speed sensor
- Corrosion or poor connections in the system
- Electrical issues such as a short circuit or open circuit in the system
Symptoms of P0859
- Illumination of the traction control warning light on the dashboard
- Reduced traction and stability while driving, especially on slippery surfaces
- Difficulty maintaining control of the vehicle during acceleration or braking
- ABS system may also be affected, leading to potential issues with braking
How to Fix P0859
- Begin by using a diagnostic scanner to retrieve the specific trouble code and identify the exact cause of the high input signal in the traction control system.
- Inspect the traction control module, wiring, and connectors for any visible damage or corrosion. Repair or replace any damaged components as needed.
- Test the wheel speed sensors to ensure they are functioning properly. Replace any sensors that are faulty.
- Clear the trouble code from the system's memory using the diagnostic scanner and test drive the vehicle to verify that the issue has been resolved.
- If the problem persists, further diagnosis may be needed to pinpoint the exact cause of the high input signal in the traction control system.
Cost to Fix P0859
The typical repair costs for addressing a P0859 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for replacing components such as the traction control module or wheel speed sensors can range from $100 to $500 or more. Labor costs at auto repair shops typically range from $80 to $150 per hour, with total repair costs potentially amounting to several hundred dollars. It is advisable to consult with a qualified mechanic or technician to obtain a more accurate estimate based on the vehicle's make and model, as well as the local labor rates in your area.
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Code P0859 Information for Specific Makes
- P0859 Dodge — Traction Control Input Signal High
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