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P0659 2018 Chevrolet Silverado Code - Actuator High Control Circuit Group 1 High Voltage

Quick Answer

The P0659 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado refers to the Actuator High Control Circuit Group 1 High Voltage. Common causes include Faulty actuator, Damaged wiring or connectors in the control circuit, Malfunctioning engine control module (ECM). 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 2018 Chevrolet Silverado indicates Actuator High Control Circuit Group 1 High Voltage.
Common causes
Common causes include Faulty actuator, Damaged wiring or connectors in the control circuit, Malfunctioning engine control module (ECM).
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P0659 2018 Chevrolet Silverado Description

The P0659 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado refers to the Actuator High Control Circuit Group 1 High Voltage. This code indicates that there is a high voltage condition detected in the control circuit for actuator group 1. Actuators are devices that convert energy into motion, and in the context of a vehicle, they are responsible for controlling various systems such as the throttle, EGR valve, or fuel injectors.

OBDII Code P0659 2018 Chevrolet Silverado - Actuator High Control Circuit Group 1 High Voltage
P0659 2018 Chevrolet Silverado Code - Actuator High Control Circuit Group 1 High Voltage

Common Causes of P0659 2018 Chevrolet Silverado

  1. Faulty actuator
  2. Damaged wiring or connectors in the control circuit
  3. Malfunctioning engine control module (ECM)
  4. Short circuit in the system
  5. Corrosion in electrical connections

Symptoms of P0659 2018 Chevrolet Silverado

  1. Rough idling
  2. Poor acceleration
  3. Decreased fuel efficiency
  4. Engine stalling
  5. Check engine light illuminated

How to Fix P0659 2018 Chevrolet Silverado

  1. Begin by using a diagnostic scanner to retrieve the trouble codes and identify the specific actuator group 1 high voltage issue.
  2. Inspect the wiring and connectors in the control circuit for any damage or corrosion. Repair or replace as necessary.
  3. Test the actuator for proper operation and replace if found to be faulty.
  4. Check the engine control module (ECM) for any signs of malfunction and replace if needed.
  5. Clear the trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0659 2018 Chevrolet Silverado

The typical repair costs for addressing a P0659 code in a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue. On average, the parts and labor for this repair could range from $200 to $500. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0659 2018 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P0659 in a 2018 Chevrolet Silverado?

The common symptoms of code P0659 in a 2018 Chevrolet Silverado include the check engine light being illuminated, poor vehicle performance, and potential issues with the vehicle's transmission.

2. What does the OBDII code P0659 indicate in a 2018 Chevrolet Silverado?

Code P0659 in a 2018 Chevrolet Silverado indicates a problem with the Actuator High Control Circuit Group 1, specifically high voltage being detected.

3. What are the possible causes of OBDII code P0659 in a 2018 Chevrolet Silverado?

Possible causes of code P0659 in a 2018 Chevrolet Silverado include a faulty actuator, damaged wiring or connectors in the control circuit, or a malfunctioning powertrain control module (PCM).

4. How can I diagnose the OBDII code P0659 in my 2018 Chevrolet Silverado?

Diagnosing code P0659 in a 2018 Chevrolet Silverado involves using a diagnostic scanner to retrieve the code, inspecting the actuator and its wiring for any visible damage, and testing the circuit for proper voltage.

5. Can I drive my 2018 Chevrolet Silverado with OBDII code P0659?

It is not recommended to drive your 2018 Chevrolet Silverado with OBDII code P0659, as it can lead to further damage to the vehicle and potential safety hazards due to poor performance.

6. How do I repair OBDII code P0659 in a 2018 Chevrolet Silverado?

Repairing code P0659 in a 2018 Chevrolet Silverado involves replacing the faulty actuator if necessary, repairing any damaged wiring or connectors, and clearing the code with a diagnostic scanner.

7. Is it safe to ignore OBDII code P0659 in my 2018 Chevrolet Silverado?

Ignoring OBDII code P0659 in a 2018 Chevrolet Silverado is not recommended, as it can lead to more serious issues with the vehicle's performance and potentially cause further damage.

8. Can a DIY enthusiast fix OBDII code P0659 in a 2018 Chevrolet Silverado?

A DIY enthusiast with the necessary tools and knowledge of automotive repair may be able to fix OBDII code P0659 in a 2018 Chevrolet Silverado, but professional assistance is recommended due to the complexity of the issue.

9. How much does it cost to repair OBDII code P0659 in a 2018 Chevrolet Silverado?

The cost to repair OBDII code P0659 in a 2018 Chevrolet Silverado can vary depending on the extent of the damage, parts needed for replacement, and labor costs, so it is advisable to consult a professional mechanic for an accurate estimate.

10. Will resetting the OBDII code P0659 in my 2018 Chevrolet Silverado make it go away permanently?

Resetting the OBDII code P0659 in a 2018 Chevrolet Silverado may temporarily clear the code, but if the underlying issue causing the code is not addressed and repaired, the code is likely to reappear.

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