Proton fault codes
8,866 codes · 50 vehicle records · 175 ECU records · 0 live-data parameters
Codes 8,866
| Code | Description | Brands | System |
|---|---|---|---|
| P0480 | Cooling Fan 1 Control Circuit | 39 | Powertrain |
| P0481 | Cooling Fan 2 Control Circuit | 38 | Powertrain |
| P0483 | Cooling Fan Rationality Check | 32 | Powertrain |
| P0487 | EGR Throttle Control Circuit A /Open | 33 | Powertrain |
| P0488 | EGR Throttle Control Circuit A Range/Performance | 35 | Powertrain |
| P0489 | EGR A Control Circuit Low | 34 | Powertrain |
| P0490 | EGR A Control Circuit High | 34 | Powertrain |
| P0494 | Fan 1 Underspeed | 28 | Powertrain |
| P0495 | Fan 1 Overspeed | 26 | Powertrain |
| P0496 | EVAP System High Purge Flow | 30 | Powertrain |
| P0497 | EVAP System Low Purge Flow | 30 | Powertrain |
| P0498 | EVAP System Vent Valve Control Circuit Low | 29 | Powertrain |
| P0499 | EVAP System Vent Valve Control Circuit High | 29 | Powertrain |
| P049B | EGR 'B' flow insufficient detected | 27 | Powertrain |
| P049D | Exhaust gas recirculation (EGR) position learning failure | 28 | Powertrain |
| P049F | Exhaust pressure control valve 'B' | 21 | Powertrain |
| P04A0 | Exhaust pressure control valve 'B' range/performance | 22 | Powertrain |
| P04AB | Cooling fan assembly control failure | 14 | Powertrain |
| P04AE | Vehicle locking failure | 15 | Powertrain |
| P04B5 | Fuel fill door stuck open | 8 | Powertrain |
| P04B6 | Fuel Fill Door Stuck Closed | 14 | Powertrain |
| P04B9 | Fuel fill door position sensor/switch circuit low | 13 | Powertrain |
| P04BF | Left rear brake light failure | 14 | Powertrain |
| P04C1 | Left rear position light failure | 15 | Powertrain |
| P04C2 | Engine coolant level warning | 15 | Powertrain |
| P04C9 | Right rear fog light failure | 8 | Powertrain |
| P04CD | Fuel fill door open request sensor/switch stuck on | 7 | Powertrain |
| P04DF | EVAP System Purge Control Valve A Performance/Stuck Open | 18 | Powertrain |
| P04E0 | Electrochromic rearview mirror failure | 10 | Powertrain |
| P04EC | Unlocking failure | 9 | Powertrain |
| P04ED | Driver door selective unlocking failure | 9 | Powertrain |
| P04EE | Front door locked | 10 | Powertrain |
| P04EF | Rear door locked | 10 | Powertrain |
| P04F0 | Fuel evaporation system | 12 | Powertrain |
| P04F1 | Remove the right door spring lock (position switch or actuator circuit) | 9 | Powertrain |
| P0500 | Vehicle Speed Sensor A | 43 | Powertrain |
| P0501 | Vehicle Speed Sensor A Range/Performance | 39 | Powertrain |
| P0502 | Vehicle Speed Sensor A Circuit Low Input | 35 | Powertrain |
| P0503 | Vehicle Speed Sensor A Intermittent/Erratic/High | 37 | Powertrain |
| P0504 | Brake Switch A/B Correlation | 37 | Powertrain |
| P0505 | Idle Air Control System | 39 | Powertrain |
| P0506 | Idle Air Control System RPM Lower Than Expected | 37 | Powertrain |
| P0507 | Idle Air Control System RPM Higher Than Expected | 40 | Powertrain |
| P0508 | Idle Air Control System Circuit Low | 30 | Powertrain |
| P0509 | Idle Air Control System Circuit High | 30 | Powertrain |
| P050A | Cold Start Idle Control System Performance | 32 | Powertrain |
| P050B | Cold Start Ignition Timing Performance | 33 | Powertrain |
| P050D | Cold start rough idle | 26 | Powertrain |
| P0510 | Closed Throttle Position Switch | 31 | Powertrain |
| P0511 | Idle Air Control Circuit | 30 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.