Fault Code P0659
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0659
ECU / Output Circuit Fault
DTC P0659 indicates a fault in the supply voltage circuit for components of the Electronic Control Unit (ECU/PCM), specifically high voltage in the actuation circuit. The control unit detects abnormally high voltage 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 electrical components
- Poor engine performance
- Damage to electrical components (e.g., burnt out)
Possible Causes
- 1Short to voltage in the voltage supply circuit
- 2Faulty or disconnected wiring
- 3Internal fault within the ECU unit
- 4Improper voltage regulation from the alternator
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