Engine-Codes - Generic - P0657

P0657 Code - Actuator Supply Voltage 'A' Circuit Open

- Code Popularity: 53,447 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC P0657?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Transmission Solenoids
  • Transmission Solenoids harness is open or shorted
  • Transmission Solenoids circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)
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How to Fix the DTC P0657?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0657 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P0657 Code Mean?

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.

P0657 Code - Actuator Supply Voltage 'A' Circuit Open

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Code P0657 Information for Specific Makes

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