Error code
OBD2 P0656
OBD2P0656
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Fuel Level Output Circuit.
Severity
moderateCan drive, but fuel gauge may not work correctly.
Summary
P0656 indicates a malfunction in the fuel level output circuit, which is part of the Engine Control Module (ECM) or related wiring.
Common Causes
- Wiring issues
- Engine Control Module (ECM) failure
Fixes
FAQ
How can I diagnose P0656?
Consult a professional mechanic or use diagnostic tools like Torque Pro to check the fuel level sensor and related wiring.
What should I do if my car shows P0656?
Check for any visible damage in the wiring near the fuel tank. If no obvious issues are found, consult a professional mechanic or consider donating to TroubleCodes.net for a detailed guide specific to your vehicle.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
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- P0604Internal Control Module Random Access Memory (RAM) Error
- P0605Internal Control Module Read Only Memory (ROM) Error
- P0606ECM/PCM Processor
- P0607Control Module Performance
- P0608Control Module VSS Output 'A'
- P0609Control Module VSS Output 'B'
- P0610Control Module Vehicle Options Error
- P0611Fuel Injector Control Module Performance