P0657: Actuator Supply Voltage A Circuit/Open
2 vehicles · 1 makes · $1,500-$4,500 repair
Most Reported On
P0657 is an OBD-II diagnostic trouble code meaning “Actuator Supply Voltage A Circuit/Open.” P0657 means the computer detected an open circuit or loss of voltage on actuator supply voltage circuit 'A', the power feed the PCM provides to operate various actuators and solenoids. The control module sends regulated power to devices like solenoids and relays, and when it sees that this supply line is open or not at the expected voltage, it sets this code. Because several outputs may share this supply, symptoms can range from a single malfunctioning actuator to multiple drivability problems. It points to a wiring/power-supply fault or an internal PCM issue rather than one specific sensor. This code is most commonly reported on 2017-2023 Jaguar F-PACE, and 2016-2023 Jaguar XF, with repair costs ranging from $1,500 to $4,500.
Common Causes
Typical Repair Cost
Based on 2 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0657, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
What does P0657 mean?
P0657 stands for "Actuator Supply Voltage A Circuit/Open." P0657 means the computer detected an open circuit or loss of voltage on actuator supply voltage circuit 'A', the power feed the PCM provides to operate various actuators and solenoids. The control module sends regulated power to devices like solenoids and relays, and when it sees that this supply line is open or not at the expected voltage, it sets this code. Because several outputs may share this supply, symptoms can range from a single malfunctioning actuator to multiple drivability problems. It points to a wiring/power-supply fault or an internal PCM issue rather than one specific sensor.
What are the most common causes of P0657?
The most common causes of P0657 are: Open or broken wiring in the actuator supply circuit, Corroded or loose connector at the PCM or actuator, Short to ground on the supply voltage line, Blown fuse feeding the actuator supply circuit, Poor PCM power or ground connection, Failed relay supplying actuator power, Internal PCM/ECM failure. The specific cause varies by vehicle.
How much does it cost to fix P0657?
Repair costs for P0657 range from $1,500 to $4,500, depending on the vehicle and root cause.
Which vehicles are affected by P0657?
Au7o has documented P0657 across 2 vehicle models from 1 manufacturers: Jaguar.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.