P1586 GMC Code - Cruise Control Brake Switch 2 Circuit Conditions
Quick Answer
The P1586 diagnostic trouble code (DTC) for GMC vehicles relates to the Cruise Control Brake Switch 2 Circuit Conditions. Common causes include Faulty brake switch 2, Damaged wiring in the brake switch circuit, Poor connection in the brake switch 2 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
- P1586 GMC indicates Cruise Control Brake Switch 2 Circuit Conditions.
- Common causes
- Common causes include Faulty brake switch 2, Damaged wiring in the brake switch circuit, Poor connection in the brake switch 2 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 P1586 GMC Description
The P1586 diagnostic trouble code (DTC) for GMC vehicles relates to the Cruise Control Brake Switch 2 Circuit Conditions. This code indicates that there is an issue with the cruise control system's brake switch 2 circuit, which can affect the vehicle's ability to maintain a constant speed without the driver needing to apply the throttle. The brake switch 2 is a critical component that communicates with the vehicle's onboard computer to ensure that the cruise control system disengages when the brake pedal is pressed. When this circuit malfunctions, it can prevent the cruise control system from operating correctly, leading to potential safety hazards and reduced driving comfort.
Common Causes of P1586 GMC
- Faulty brake switch 2
- Damaged wiring in the brake switch circuit
- Poor connection in the brake switch 2 circuit
- Corrosion or debris affecting the brake switch 2 functionality
- Electronic control module (ECM) issues affecting communication with the brake switch 2
Symptoms of P1586 GMC
- Inoperative cruise control system
- Check engine light illuminated on the dashboard
- Difficulty engaging or disengaging cruise control
- Erratic speed fluctuations while using cruise control
- Reduced fuel efficiency due to inconsistent speed maintenance
How to Fix P1586 GMC
- Begin by inspecting the brake switch 2 circuit for any visible damage, such as frayed wires or loose connections.
- Test the brake switch 2 functionality using a multimeter to check for continuity and proper signal transmission.
- Replace the brake switch 2 if it is found to be faulty, ensuring that the new switch is compatible with the vehicle's make and model.
- Clear the DTC using an OBD-II scanner and test the cruise control system to verify that the issue has been resolved.
- If the problem persists, further diagnostics may be necessary to identify any underlying ECM issues or wiring problems that could be contributing to the code.
Cost to Fix P1586 GMC
The typical repair costs for addressing the P1586 code related to the Cruise Control Brake Switch 2 Circuit Conditions can vary depending on the extent of the issue and the specific repairs required. In general, replacing a faulty brake switch 2 and addressing related wiring issues can range from $100 to $300, including parts and labor. However, it is essential to note that labor rates at auto repair shops can vary significantly based on location, vehicle make and model, and the expertise of the technicians. It is advisable to consult with a professional mechanic or dealership to obtain a more accurate estimate based on the specific circumstances of your vehicle.
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