P0659 GMC Code - Actuator High Control Circuit Group 1 High Voltage
Quick Answer
The P0659 GMC code indicates a problem with the Actuator High Control Circuit Group 1 High Voltage in the vehicle. Common causes include Faulty actuator, Wiring issues in the control circuit, Malfunctioning 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
- P0659 GMC indicates Actuator High Control Circuit Group 1 High Voltage.
- Common causes
- Common causes include Faulty actuator, Wiring issues in the control circuit, Malfunctioning 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.
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 GMC Description
The P0659 GMC code indicates a problem with the Actuator High Control Circuit Group 1 High Voltage in the vehicle. This means that there is a voltage level detected in the actuator control circuit that is higher than the predetermined threshold set by the manufacturer. This issue can affect the performance of various systems in the vehicle, as the actuator is responsible for controlling various components such as the engine's intake or exhaust valves, fuel injectors, or even the transmission.
Common Causes of P0659 GMC
- Faulty actuator
- Wiring issues in the control circuit
- Malfunctioning sensor
- Problem with the engine control module (ECM)
- Corrosion or damage to electrical connections
Symptoms of P0659 GMC
- Rough idling
- Poor acceleration
- Decreased fuel efficiency
- Stalling
- Check engine light illuminated on the dashboard
How to Fix P0659 GMC
- Use a diagnostic scanner to retrieve the trouble codes and identify the specific actuator high control circuit group 1 high voltage issue.
- Inspect the wiring and electrical connections related to the actuator, looking for any signs of damage, corrosion, or loose connections.
- Test the actuator itself to determine if it is functioning correctly or needs replacement.
- Check the sensor and engine control module (ECM) for any faults or malfunctions that could be causing the high voltage in the control circuit.
- Replace any faulty components, repair wiring issues, and clear the trouble codes to reset the system.
Cost to Fix P0659 GMC
The typical repair costs for addressing the P0659 GMC code can vary depending on the specific cause of the issue and the parts needed for the repair. On average, the cost for parts and labor can range from $200 to $500. However, it's important to note that the actual cost can be higher or lower based on factors such as location, vehicle make and model, and the specific repair shop. It's recommended to consult with a professional mechanic to get an accurate estimate for this repair.
Need more information about the P0659 GMC code?
Need more information on how to fix the P0659 GMC code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0659 GMC code diagnosed by a professional: Find a repair shop in your area
Information for Specific GMC Models
- P0659 2014 GMC Sierra — Actuator High Control Circuit Group 1 High Voltage
- P0659 2015 GMC Sierra — Actuator High Control Circuit Group 1 High Voltage
- P0659 2016 GMC Sierra — Actuator High Control Circuit Group 1 High Voltage
- P0659 2017 GMC Sierra — Actuator High Control Circuit Group 1 High Voltage
- P0659 2018 GMC Sierra — Actuator High Control Circuit Group 1 High Voltage
Frequently Asked Questions about P0659 GMC Code
What does the OBDII code P0659 mean on a GMC vehicle?
Code P0659 indicates a high voltage issue in the Actuator Control Circuit Group 1, meaning the Engine Control Module (ECM) has detected an electrical problem in one of the control circuits for actuators.
What are the common symptoms of code P0659 on a GMC?
Common symptoms include poor engine performance, reduced fuel efficiency, the Check Engine Light illuminating, and potential issues with certain actuators not functioning as intended.
What can cause the P0659 code to trigger?
Potential causes include damaged or corroded wiring, a faulty actuator, a short or open circuit, a malfunctioning ECM, or a defective actuator control relay.
How is the P0659 code diagnosed?
Diagnosis typically involves using a scan tool to confirm the code, inspecting the wiring and connectors for damage, testing the actuator circuits for continuity, and checking the actuator control relay.
Can I drive my GMC with the P0659 code active?
Driving with this code is not recommended, as it may lead to reduced performance, potential safety concerns, or further damage to the vehicle if unresolved.
How do you fix a GMC with a P0659 code?
Repairs may include replacing or repairing damaged wiring, replacing a faulty actuator, testing and replacing the actuator control relay, or addressing ECM issues if necessary.
Could a bad ECM cause the P0659 code?
Yes, a malfunctioning ECM can cause the P0659 code, as it may fail to properly manage the actuator control circuits.
How much does it typically cost to fix the P0659 code on a GMC?
Repair costs can vary widely depending on the root cause, ranging from $100 for simple wiring repairs to $500 or more for actuator or ECM replacements.
Is the P0659 code specific to GMC vehicles?
No, the P0659 code is a generic OBDII code that can appear on various makes and models, but the exact symptoms and repair process may vary between vehicles.
Can a blown fuse cause the P0659 code?
Yes, a blown fuse in the actuator control circuit can lead to the P0659 code being triggered due to an interruption in the circuit.
Discuss the causes and fixes for P0659 GMC OBDII Code
Code P0659 GMC 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.