Error code
OBD2 P0479
OBD2P0479
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Exhaust Pressure Control Valve Intermittent.
Severity
moderateCan drive but may experience performance issues and potential emissions problems.
Summary
P0479 indicates an intermittent issue with the exhaust gas pressure control valve circuit, which is part of the exhaust system.
Common Causes
- Poor connection or wiring issues
- Faulty exhaust gas pressure control valve
Fixes
- Inspect and repair any wiring or connection issues related to the exhaust gas pressure control valve.
FAQ
What does P0479 mean?
P0479 indicates an intermittent problem with the circuit of the exhaust gas pressure control valve.
How serious is P0479?
It's moderately serious. While you can still drive, it may cause performance issues and emissions problems.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P0400Exhaust Gas Recirculation Flow
- P0401Exhaust Gas Recirculation Flow Insufficient Detected
- P0402Exhaust Gas Recirculation Flow Excessive Detected
- P0403Exhaust Gas Recirculation Control Circuit
- P0404Exhaust Gas Recirculation Control Circuit Range/Performance
- P0405Exhaust Gas Recirculation Sensor 'A' Circuit Low
- P0406Exhaust Gas Recirculation Sensor 'A' Circuit High
- P0407Exhaust Gas Recirculation Sensor 'B' Circuit Low
- P0408Exhaust Gas Recirculation Sensor 'B' Circuit High
- P0409Exhaust Gas Recirculation Sensor 'A' Circuit
- P0410Secondary Air Injection System
- P0411Secondary Air Injection System Incorrect Flow Detected