AutoCodes – Chevrolet – P0659 Chevrolet

P0659 Chevrolet 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 Chevrolet 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 2,012

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

What does this mean?

What are the Possible Causes of the DTC P0659 Chevrolet?

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 Chevrolet?

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 Chevrolet 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 Chevrolet code?

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

Need Help with the Code?

Get the P0659 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

P0659 2014 Chevrolet Silverado — Actuator High Control Circuit Group 1 High Voltage
P0659 2015 Chevrolet Silverado — Actuator High Control Circuit Group 1 High Voltage
P0659 2016 Chevrolet Silverado — Actuator High Control Circuit Group 1 High Voltage
P0659 2017 Chevrolet Silverado — Actuator High Control Circuit Group 1 High Voltage
P0659 2018 Chevrolet Silverado — Actuator High Control Circuit Group 1 High Voltage

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 Chevrolet Code

1. What does the OBDII code P0659 mean on a Chevrolet?

P0659 indicates that the powertrain control module (PCM) has detected a high voltage condition in the actuator control circuit for Group 1.

2. What are the common symptoms of code P0659 in a Chevrolet?

Symptoms may include difficulty starting the vehicle, erratic engine performance, reduced power, or activation of the check engine light.

3. What causes the P0659 code to appear on a Chevrolet?

Common causes include a shorted actuator control circuit, damaged wiring or connectors, a faulty PCM, or a malfunctioning actuator.

4. How do you diagnose the P0659 code on a Chevrolet?

Diagnosis involves scanning for additional codes, inspecting the actuator control circuit wiring and connectors, testing the actuator itself, and verifying PCM functionality.

5. Can a faulty actuator trigger the P0659 code on a Chevrolet?

Yes, a malfunctioning actuator can cause a high voltage condition, leading to the P0659 code.

6. Is it safe to drive with a P0659 code on a Chevrolet?

Driving with this code can lead to poor engine performance and may cause further damage, so itâ€™s recommended to address the issue promptly.

7. What tools are needed to troubleshoot the P0659 code on a Chevrolet?

Youâ€™ll need an OBDII scanner, a multimeter, and possibly wiring diagrams to diagnose the issue.

8. How can you fix the P0659 code on a Chevrolet?

Repairs may involve replacing damaged wiring, repairing or replacing connectors, replacing the actuator, or reprogramming or replacing the PCM.

9. Can a software issue cause the P0659 code on a Chevrolet?

Yes, a software glitch in the PCM could potentially lead to this code and may require a software update or reprogramming.

10. What is the cost to repair a P0659 code on a Chevrolet?

Repair costs vary depending on the root cause but can range from $50 for simple wiring repairs to $1,000 or more if the PCM or actuator needs replacement.