P0659 2014 GMC Sierra Code - Actuator High Control Circuit Group 1 High Voltage
Quick Answer
The P0659 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates an issue with the Actuator High Control Circuit Group 1 High Voltage. Common causes include Faulty Actuator: A malfunctioning actuator can cause high voltage in the control circuit, triggering this DTC, Wiring Issues: Damaged or corroded wiring connections can disrupt the flow of electrical signals, leading to high voltage in the circuit, Sensor Malfunction: A faulty sensor that communicates with the actuator control circuit can also be a potential cause of this issue. 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
- P0659 2014 GMC Sierra indicates Actuator High Control Circuit Group 1 High Voltage.
- Common causes
- Common causes include Faulty Actuator: A malfunctioning actuator can cause high voltage in the control circuit, triggering this DTC, Wiring Issues: Damaged or corroded wiring connections can disrupt the flow of electrical signals, leading to high voltage in the circuit, Sensor Malfunction: A faulty sensor that communicates with the actuator control circuit can also be a potential cause of this issue.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0659 2014 GMC Sierra Description
The P0659 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates an issue with the Actuator High Control Circuit Group 1 High Voltage. This code specifically points to a problem with the electrical circuit that controls the actuator, which is responsible for regulating various components in the vehicle. The actuator is a crucial part of the vehicle's systems, as it helps to control functions such as the throttle, transmission, and fuel injection.
Common Causes of P0659 2014 GMC Sierra
- Faulty Actuator: A malfunctioning actuator can cause high voltage in the control circuit, triggering this DTC.
- Wiring Issues: Damaged or corroded wiring connections can disrupt the flow of electrical signals, leading to high voltage in the circuit.
- Sensor Malfunction: A faulty sensor that communicates with the actuator control circuit can also be a potential cause of this issue.
- PCM (Powertrain Control Module) Failure: A malfunctioning PCM, which is responsible for controlling various engine functions, can result in high voltage in the actuator control circuit.
Symptoms of P0659 2014 GMC Sierra
- Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
- Reduced Engine Performance: Drivers may notice a decrease in engine power or responsiveness, leading to sluggish acceleration or rough idling.
- Poor Fuel Efficiency: High voltage in the actuator control circuit can result in inefficient fuel combustion, causing a drop in fuel economy.
- Transmission Issues: The vehicle may experience problems with shifting gears smoothly, leading to jerky or delayed gear changes.
How to Fix P0659 2014 GMC Sierra
- Diagnose the Issue: Use a diagnostic scanner to retrieve the DTC and conduct a thorough inspection of the actuator control circuit to identify the root cause of the high voltage.
- Check Wiring and Connectors: Inspect all wiring connections and connectors related to the actuator control circuit for any signs of damage or corrosion.
- Test Actuator Function: Verify the functionality of the actuator and replace it if necessary to resolve the high voltage issue.
- Address Sensor Problems: If a faulty sensor is identified as the cause, replace the sensor and recalibrate the system to ensure proper communication with the control circuit.
- Clear DTC and Test Drive: After completing the repair process, clear the DTC from the vehicle's memory, and test drive the vehicle to ensure that the issue has been successfully resolved.
Cost to Fix P0659 2014 GMC Sierra
The typical repair costs for addressing a P0659 DTC in a 2014 GMC Sierra can range from $150 to $500, including parts and labor. The specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less for repairs.
Need more information about the P0659 2014 GMC Sierra code?
Need more information on how to fix the P0659 2014 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0659 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0659 2014 GMC Sierra Code
No Frequently Asked Questions about P0659 2014 GMC Sierra Code found.
Discuss the causes and fixes for P0659 2014 GMC Sierra OBDII Code
Code P0659 2014 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.