AutoCodes – Chevrolet – P0659 2018 Chevrolet Silverado

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

Quick Answer

The Transmission Control Module (TCM) receives information from a variety of sensors, switches, and serial data information from other control modules. Common causes include Faulty Transmission Control Solenoid Valve, Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted. 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 Transmission Control Solenoid Valve, Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted.
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 Popularity 672

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 18, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0659 2018 Chevrolet Silverado Description

The Transmission Control Module (TCM) receives information from a variety of sensors, switches, and serial data information from other control modules. This information is used to control a combination of solenoid valves to obtain the correct line pressure, gear ratio, and torque converter clutch operation. The Transmission Control Solenoid Valves are electro-mechanically operated valves. The valves are controlled by an electric current through the solenoid. The TCM high side driver 1 is located inside of the control solenoid valve assembly which has no serviceable parts. The high side driver 1 provides power to the Transmission Control Module pressure control solenoids and shift solenoids. The Diagnostic Trouble Code (DTC) will be set when the TCM detects an internal short to voltage on the high side driver 1 circuit for 1 s after engine start.

OBDII Code P0659 2018 Chevrolet Silverado - Actuator High Control Circuit Group 1 High Voltage - AutoCodes.com — P0659 2018 Chevrolet Silverado Code - Actuator High Control Circuit Group 1 High Voltage

What does this mean?

What are the Possible Causes of the DTC P0659 2018 Chevrolet Silverado?

Faulty Transmission Control Solenoid Valve
Faulty Transmission Control Module (TCM)
Transmission Control Module harness is open or shorted
Transmission Control Module circuit poor electrical connection

How to Fix the DTC P0659 2018 Chevrolet Silverado?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0659 2018 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0659 2018 Chevrolet Silverado code?

Need more information on how to fix the P0659 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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.