P0657 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 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.
Code P0657 Description
However, DTC P0657 sets when ALL of the solenoids do not have the correct voltage returning to the PCM all at the same time.
What are the Possible Causes of the DTC P0657?
- 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?
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 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.
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Information for Specific Makes
- P0657 Acura — Actuator Supply Voltage Circuit open
- P0657 Buick — Actuator High Control Circuit Group 1
- P0657 Cadillac — Actuator High Control Circuit Group 1
- P0657 Chevrolet — Actuator High Control Circuit Group 1
- P0657 Chrysler — Solenoid Supply Voltage Circuit
- P0657 Dodge — Solenoid Supply Voltage Circuit
- P0657 Ford — Actuator Supply Voltage 'A' Circuit Open
- P0657 GMC — Actuator High Control Circuit Group 1
- P0657 Honda — Actuator Supply Voltage Circuit open
- P0657 Jeep — Solenoid Supply Voltage Circuit
- P0657 Lexus — Actuator Supply Voltage Circuit Open
- P0657 Lincoln — Actuator Supply Voltage 'A' Circuit Open
- P0657 Mercury — Actuator Supply Voltage 'A' Circuit Open
- P0657 Mitsubishi — Actuator Supply Voltage 'A' Circuit Open
- P0657 Scion — Actuator Supply Voltage Circuit open
- P0657 Toyota — Actuator Supply Voltage Circuit Open
- P0657 Volkswagen — Actuator Supply Voltage 'A' Circuit Open
Frequently Asked Questions about P0657 Code
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