AutoCodes – Volkswagen – P0657 Volkswagen

P0657 Volkswagen Code - Actuator Supply Voltage 'A' Circuit Open

Quick Answer

The Powertrain Control Module (PCM) monitors the transmission solenoid circuits by supplying voltage to the solenoids through this circuit, then checking for voltage returning from the solenoids through each of the individual solenoid control wires. Common causes include Faulty Transmission Solenoids, Transmission Solenoids harness is open or shorted, Transmission Solenoids circuit poor electrical connection. 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: P0657 Volkswagen indicates Actuator Supply Voltage 'A' Circuit Open.
Common causes: Common causes include Faulty Transmission Solenoids, Transmission Solenoids harness is open or shorted, Transmission Solenoids circuit poor electrical connection.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 23,862

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 May 04, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0657 Volkswagen Description

The Powertrain Control Module (PCM) monitors the transmission solenoid circuits by supplying voltage to the solenoids through this circuit, then checking for voltage returning from the solenoids through each of the individual solenoid control wires. If one of the solenoid return circuits does not have the correct voltage returning to the PCM, the PCM will set a code for that solenoid.
However, DTC P0657 sets when ALL of the solenoids do not have the correct voltage returning to the PCM all at the same time.

OBDII Code P0657 Volkswagen - Actuator Supply Voltage 'A' Circuit Open - AutoCodes.com — P0657 Volkswagen Code - Actuator Supply Voltage 'A' Circuit Open

What does this mean?

What are the Possible Causes of the DTC P0657 Volkswagen?

Faulty Transmission Solenoids
Transmission Solenoids harness is open or shorted
Transmission Solenoids circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0657 Volkswagen?

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 P0657 Volkswagen 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 P0657 Volkswagen code?

Need more information on how to fix the P0657 Volkswagen code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0657 Volkswagen code diagnosed by a professional: Find a repair shop in your area

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 P0657 Volkswagen Code

1. What are the common symptoms of OBDII code P0657 in a Volkswagen?

- Common symptoms include the check engine light illuminating, poor engine performance, and potential stalling issues.

2. What does the OBDII code P0657 indicate in a Volkswagen?

- This code indicates a fault with the Actuator Supply Voltage 'A' Circuit being open, meaning a lack of power supply to certain components.

3. What are the possible causes of OBDII code P0657 in a Volkswagen?

- Possible causes include a faulty actuator, damaged wiring or connectors, a blown fuse, or a problem with the powertrain control module.

4. How can I diagnose the issue causing OBDII code P0657 in my Volkswagen?

- Diagnosis typically involves checking the wiring and connectors for damage, testing the actuator for proper function, and using a multimeter to measure voltage.

5. Can I drive my Volkswagen with OBDII code P0657?

- It is not recommended to drive your vehicle with this code as it can lead to further damage and potentially unsafe driving conditions.

6. How can I repair OBDII code P0657 in my Volkswagen?

- Repair may involve replacing a faulty actuator, repairing damaged wiring or connectors, replacing a blown fuse, or reprogramming the powertrain control module.

7. Will resetting the check engine light resolve OBDII code P0657 in my Volkswagen?

- Resetting the check engine light may temporarily turn it off, but the underlying issue causing the code will still need to be diagnosed and repaired.

8. Can a DIY enthusiast fix OBDII code P0657 in a Volkswagen?

- Depending on the cause of the code, some DIY enthusiasts with automotive experience may be able to diagnose and repair the issue themselves.

9. How much does it cost to repair OBDII code P0657 in a Volkswagen?

- Repair costs can vary widely depending on the cause of the code, with expenses ranging from a simple fuse replacement to a more involved actuator replacement.

10. Is it important to address OBDII code P0657 promptly in my Volkswagen?

- Yes, it is important to address this code promptly to prevent potential damage to other components and ensure the safe and efficient operation of your vehicle.