Fault Code P0656
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0656
ECU / Output Circuit Fault
DTC P0656 indicates a fault in the fuel level output circuit of the ECU/PCM. The ECU does not detect the expected voltage or current in this circuit, affecting the fuel gauge or related systems.
Part Details
Part Name
Electronic Control Unit (ECU/PCM), Fuel Gauge
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/Instrument Panel/Fuel Tank
Symptoms
- Check Engine Light on
- Fuel gauge not working or displaying incorrect readings
- Inaccurate fuel consumption data
- Vehicle runs out of fuel despite gauge showing fuel
Possible Causes
- 1Electrical short or open circuit in the fuel level circuit
- 2Damaged wiring or loose connector
- 3Internal fault within the ECU
- 4Defective fuel level sender
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