| P0478 |
Exhaust Pressure Control Valve High |
Medium |
| P0479 |
Exhaust Pressure Control Valve Intermittent |
Medium |
| P0480 |
Cooling Fan 1 Control Circuit |
High |
| P0481 |
Cooling Fan 2 Control Circuit |
High |
| P0482 |
Cooling Fan 3 Control Circuit |
High |
| P0483 |
Cooling Fan Rationality Check |
High |
| P0484 |
Cooling Fan Circuit Over Current |
High |
| P0485 |
Cooling Fan Power/Ground Circuit |
High |
| P0486 |
EGR Sensor B Circuit |
Medium |
| P0487 |
EGR Throttle Position Control Circuit |
Medium |
| P0488 |
EGR Throttle Position Control Range/Performance |
Medium |
| P0489 |
Exhaust Gas Recirculation Control Circuit Low |
Medium |
| P0490 |
Exhaust Gas Recirculation Control Circuit High |
Medium |
| P0491 |
Secondary Air Injection System Insufficient Flow (Bank 1) |
Low |
| P0492 |
Secondary Air Injection System Insufficient Flow (Bank 2) |
Low |
| P0493 |
Fan Overspeed (Fan Clutch) |
Medium |
| P0494 |
Fan Speed Low |
Medium |
| P0495 |
Fan Speed High |
Medium |
| P0496 |
Evaporative Emission System High Purge Flow |
Low |
| P0497 |
Evaporative Emission System Low Purge Flow |
Low |
| P0498 |
Evaporative Emission System Vent Control Circuit Low |
Low |
| P0499 |
Evaporative Emission System Vent Control Circuit High |
Low |
| P0544 |
Exhaust Gas Temperature Sensor Circuit (Bank 1) |
Medium |
| P0545 |
Exhaust Gas Temperature Sensor Circuit Low (Bank 1) |
Medium |
| P0546 |
Exhaust Gas Temperature Sensor Circuit High (Bank 1) |
Medium |
| P0547 |
Exhaust Gas Temperature Sensor Circuit (Bank 2) |
Medium |
| P0548 |
Exhaust Gas Temperature Sensor Circuit Low (Bank 2) |
Medium |
| P0549 |
Exhaust Gas Temperature Sensor Circuit High (Bank 2) |
Medium |
| P1400 |
EGR DPFE Sensor Circuit Low Signal (Ford) |
Low |
| P1401 |
EGR Differential Pressure Sensor Signal High (Manufacturer Code) |
Medium |
| P1405 |
DPFE Sensor Inlet Hose Disconnected or Plugged (Ford) |
Low |
| P1406 |
EGR Valve Pintle Position Circuit (GM) |
Medium |
| P1415 |
Secondary Air Injection System (GM, Bank 1) |
Low |
| P1416 |
Secondary Air Injection System (GM, Bank 2) |
Low |
| P1441 |
EVAP System Flow During Non-Purge (GM) |
Low |
| P1445 |
Evaporative Purge Control Fault (Manufacturer Code) |
Low |
| P1450 |
Unable to Bleed Up Fuel Tank Vacuum (Ford) |
Low |
| P1456 |
EVAP System Leak: Fuel Tank Side (Honda) |
Low |
| P1457 |
EVAP System Leak: Canister Side (Honda) |
Low |
| P1491 |
EGR Valve Insufficient Lift (Honda) |
Medium |
| P1494 |
Leak Detection Pump Switch or Mechanical Fault (Chrysler) |
Low |
| P1495 |
Leak Detection Pump Solenoid Circuit (Chrysler) |
Low |
| P2000 |
NOx Trap Efficiency Below Threshold (Bank 1) |
Medium |
| P2002 |
Diesel Particulate Filter Efficiency Below Threshold (Bank 1) |
High |
| P2003 |
Diesel Particulate Filter Efficiency Below Threshold (Bank 2) |
High |
| P2031 |
Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 2) |
Medium |
| P2032 |
Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 2) |
Medium |
| P2033 |
Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2) |
Medium |
| P2047 |
Reductant Injector Circuit/Open |
High |
| P2080 |
Exhaust Gas Temperature Sensor Circuit Range/Performance (Bank 1 Sensor 1) |
Medium |
| P2084 |
Exhaust Gas Temperature Sensor Circuit Range/Performance (Bank 1 Sensor 2) |
Medium |
| P2096 |
Post Catalyst Fuel Trim System Too Lean (Bank 1) |
Medium |
| P20EE |
SCR NOx Catalyst Efficiency Below Threshold (Bank 1) |
High |
| P2400 |
Evaporative Emission System Leak Detection Pump Control Circuit/Open |
Low |
| P2401 |
Evaporative Emission System Leak Detection Pump Control Circuit Low |
Low |
| P2402 |
Evaporative Emission System Leak Detection Pump Control Circuit High |
Low |
| P2403 |
Evaporative Emission System Leak Detection Pump Sense Circuit |
Low |
| P2404 |
Evaporative Emission System Leak Detection Pump Sense Circuit Range/Performance |
Low |
| P2405 |
Evaporative Emission System Leak Detection Pump Sense Circuit Low |
Low |
| P2406 |
Evaporative Emission System Leak Detection Pump Sense Circuit High |
Low |
| P2413 |
Exhaust Gas Recirculation System Performance |
Medium |
| P2422 |
Evaporative Emission System Vent Valve Stuck Closed |
Low |
| P2431 |
Secondary Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance (Bank 1) |
Low |
| P2440 |
Secondary Air Injection System Switching Valve Stuck Open (Bank 1) |
Low |
| P2441 |
Secondary Air Injection System Switching Valve Stuck Closed (Bank 1) |
Low |
| P2444 |
Secondary Air Injection System Pump Stuck On (Bank 1) |
Low |
| P2452 |
Diesel Particulate Filter Pressure Sensor A Circuit |
Medium |
| P2453 |
Diesel Particulate Filter Pressure Sensor A Circuit Range/Performance |
Medium |
| P2454 |
Diesel Particulate Filter Pressure Sensor A Circuit Low |
Medium |
| P2455 |
Diesel Particulate Filter Pressure Sensor A Circuit High |
Medium |
| P2457 |
Exhaust Gas Recirculation Cooling System Performance |
High |
| P2458 |
Diesel Particulate Filter Regeneration Duration |
Medium |
| P2459 |
Diesel Particulate Filter Regeneration Frequency |
Medium |
| P2463 |
Diesel Particulate Filter Soot Accumulation |
High |