P0657 on Jaguar
Actuator Supply Voltage A Circuit/Open
P0657 on Jaguar vehicles indicates actuator supply voltage a circuit/open. Au7o has documented this code across 2 Jaguar models — most commonly on F-PACE, XF. 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. Typical repair costs on Jaguar range from $1,500 to $4,500, depending on the specific model and root cause.
Common Causes of P0657
- •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
P0657 on Jaguar by Model
Jaguar F-PACE(1 issue)
- ZF 8HP Transmission Valve Body Malfunction2017-2023
The ZF 8HP automatic transmission used across the F-PACE range develops valve body issues causing harsh shifts, delayed engagement, and occasional limp mode. The solenoids in the mechatronic unit wear prematurely, particularly in stop-and-go driving conditions.
Jaguar XF(1 issue)
- ZF 8HP Mechatronic Unit Failure2016-2023
The ZF 8HP transmission mechatronic unit in the second-generation XF develops internal electrical faults. Failed solenoids and worn valve body bores cause erratic shifting, stuck gears, and transmission fault warnings that put the vehicle into limp mode.
Looking for P0657 on a different make?
View P0657 across all makes →Frequently Asked Questions
What does P0657 mean on Jaguar?▼
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. On Jaguar specifically, this code is documented across 2 models.
What causes P0657 on Jaguar vehicles?▼
Common causes on Jaguar: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0657 on a Jaguar?▼
Repair costs on Jaguar range from $1,500 to $4,500, depending on the specific model and root cause.
Which Jaguar models have P0657 documented?▼
Au7o has documented P0657 on 2 Jaguar models: F-PACE, XF.