Fault Code P0657
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0657
ECU / Output Circuit Fault
DTC P0657 indicates a fault in the supply voltage circuit for certain components of the Electronic Control Unit (ECU/PCM), specifically in the actuation current range. The control unit detects abnormal voltage/current in this circuit.
Part Details
Part Name
Electronic Control Unit (ECU/PCM), Controlled Components
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪300 - ₪6,000
Engine Location
Engine Bay/Passenger Compartment
Symptoms
- Check Engine Light on
- Malfunctions in injectors, solenoids, or other electrical components
- Poor engine performance
- Vehicle not starting or stalling
Possible Causes
- 1Electrical short or open circuit in the voltage supply circuit
- 2Damaged wiring or loose connector
- 3Internal fault within the ECU unit
- 4Connected component (injector/solenoid) causing a short
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