P0659 2015 GMC Sierra Code - Actuator High Control Circuit Group 1 High Voltage
Quick Answer
The P0659 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates a problem with the Actuator High Control Circuit Group 1 High Voltage. Common causes include Faulty Actuator Control Module: A malfunctioning actuator control module can cause the high voltage in the circuit, triggering the P0659 code, Wiring Issues: Corroded or damaged wiring in the actuator control circuit can lead to higher voltage readings and trigger the code, Sensor Malfunction: A faulty sensor connected to the actuator control circuit, such as a throttle position sensor or EGR valve sensor, can cause high voltage readings. 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 2015 GMC Sierra indicates Actuator High Control Circuit Group 1 High Voltage.
- Common causes
- Common causes include Faulty Actuator Control Module: A malfunctioning actuator control module can cause the high voltage in the circuit, triggering the P0659 code, Wiring Issues: Corroded or damaged wiring in the actuator control circuit can lead to higher voltage readings and trigger the code, Sensor Malfunction: A faulty sensor connected to the actuator control circuit, such as a throttle position sensor or EGR valve sensor, can cause high voltage readings.
- 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 P0659 2015 GMC Sierra Description
The P0659 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates a problem with the Actuator High Control Circuit Group 1 High Voltage. This code is specifically related to the actuator control circuit within the vehicle's engine management system. The actuator control circuit is responsible for regulating various components in the engine, such as the throttle position, EGR valve, or fuel injector timing.
Common Causes of P0659 2015 GMC Sierra
- Faulty Actuator Control Module: A malfunctioning actuator control module can cause the high voltage in the circuit, triggering the P0659 code.
- Wiring Issues: Corroded or damaged wiring in the actuator control circuit can lead to higher voltage readings and trigger the code.
- Sensor Malfunction: A faulty sensor connected to the actuator control circuit, such as a throttle position sensor or EGR valve sensor, can cause high voltage readings.
- Electrical Short: An electrical short in the actuator control circuit can lead to high voltage and trigger the code.
- Software Malfunction: A glitch or error in the vehicle's engine control module (ECM) software can also cause the actuator control circuit to read higher voltage than normal.
Symptoms of P0659 2015 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.
- Erratic Engine Performance: The vehicle may experience rough idling, stalling, or hesitation during acceleration due to the high voltage in the actuator control circuit.
- Decreased Fuel Efficiency: The vehicle may consume more fuel than usual, resulting in decreased fuel efficiency.
- Engine Misfires: High voltage in the actuator control circuit can lead to engine misfires, causing the vehicle to run poorly and potentially damaging the engine.
- Reduced Power: The vehicle may lack power and struggle to perform at its usual level due to the actuator control circuit's high voltage.
How to Fix P0659 2015 GMC Sierra
- Diagnose the Issue: Use a diagnostic scanner to retrieve the DTC and pinpoint the exact cause of the high voltage in the actuator control circuit.
- Inspect Wiring and Connections: Thoroughly inspect the wiring and connections in the actuator control circuit for any damage, corrosion, or loose connections.
- Test Sensors: Check the sensors connected to the actuator control circuit, such as the throttle position sensor or EGR valve sensor, to ensure they are functioning correctly.
- Replace Faulty Components: If a faulty actuator control module, sensor, or wiring is identified as the cause, replace the damaged components with new ones.
- Clear DTC and Test Drive: After repairing the issue, clear the DTC from the vehicle's computer, and take the vehicle for a test drive to ensure the problem has been resolved.
Cost to Fix P0659 2015 GMC Sierra
The cost of repairing a P0659 code in a 2015 GMC Sierra can vary depending on the specific cause of the issue. On average, the parts required for this repair, such as a new actuator control module or sensors, can range from $100 to $500. Additionally, labor costs for diagnosing and repairing the problem can add another $100 to $300 to the total repair bill. Overall, the total cost of addressing a P0659 code in a 2015 GMC Sierra can range from $200 to $800.
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