Engine-CodesGeneric – P0658

P0658 Code - Actuator Supply Voltage 'A' Circuit Low

Quick Answer

The diagnostic trouble code P0658 indicates that there is an issue with the Actuator Supply Voltage 'A' Circuit being too low. Common causes include Faulty throttle actuator control module, Damaged wiring or connectors in the Actuator Supply Voltage 'A' Circuit, Weak battery or alternator. 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
P0658 indicates Actuator Supply Voltage 'A' Circuit Low.
Common causes
Common causes include Faulty throttle actuator control module, Damaged wiring or connectors in the Actuator Supply Voltage 'A' Circuit, Weak battery or alternator.
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.
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P0658 Description

The diagnostic trouble code P0658 indicates that there is an issue with the Actuator Supply Voltage 'A' Circuit being too low. This code is typically found in vehicles with electronic throttle control systems. The Actuator Supply Voltage 'A' Circuit is responsible for providing power to the throttle actuator control module, which in turn controls the opening and closing of the throttle valve. When the voltage in this circuit is too low, it can lead to a variety of performance issues in the vehicle.

OBDII Code P0658 - Actuator Supply Voltage 'A' Circuit Low
P0658 Code - Actuator Supply Voltage 'A' Circuit Low

Common Causes of P0658

  1. Faulty throttle actuator control module
  2. Damaged wiring or connectors in the Actuator Supply Voltage 'A' Circuit
  3. Weak battery or alternator
  4. Malfunctioning engine control module
  5. Corrosion in electrical connections

Symptoms of P0658

  1. Lack of power or acceleration
  2. Sluggish throttle response
  3. Engine misfires
  4. Illuminated Check Engine Light
  5. Vehicle going into "limp mode"

How to Fix P0658

  1. Begin by conducting a thorough inspection of the Actuator Supply Voltage 'A' Circuit, checking for any damaged wiring or connectors.
  2. Test the throttle actuator control module to determine if it is functioning properly. Replace if necessary.
  3. Check the battery and alternator to ensure they are providing sufficient voltage to the circuit. Replace if needed.
  4. Clear the diagnostic trouble codes from the vehicle's computer and perform a test drive to verify that the issue has been resolved.
  5. If the problem persists, consult a professional technician for further diagnosis and repair.

Cost to Fix P0658

The typical repair costs for addressing the Actuator Supply Voltage 'A' Circuit Low issue can range from $200 to $500, depending on the specific cause of the problem and the cost of parts and labor. 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 often offer more competitive pricing.

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Code P0658 Information for Specific Makes

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.

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