| Trouble Code |
Fault location
/ Ubicacion de Falla |
Probable cause / Causas Probables |
| P2251 |
| Heated oxygen sensor (HO2S)
1, bank 1, negative current control - open circuit |
| Oxygen sensor (O2S) 1, bank
1, negative current control - open circuit |
| Heated oxygen sensor (HO2S)
1, bank 1 - no signal |
|
| Wiring, HO2S |
| Wiring, O2S |
| Wiring, HO2S, ECM |
|
| P2252 |
| Heated oxygen sensor (HO2S)
1, bank 1, negative current control - circuit low |
| Oxygen sensor (O2S) 1, bank
2, negative current control - circuit low |
|
| Wiring short to ground,
HO2S |
| Wiring short to ground,
O2S |
|
| P2253 |
| Heated oxygen sensor (HO2S)
1, bank 1, negative current control - circuit high |
| Oxygen sensor (O2S) 1, bank
1, negative current control - circuit high |
|
| Wiring short to positive,
HO2S |
| Wiring short to positive,
O2S |
|
| P2254 |
| Heated oxygen sensor (HO2S)
1, bank 2, negative current control - open circuit |
| Oxygen sensor (O2S) 1, bank
2, negative current control - open circuit |
| Heated oxygen sensor (HO2S)
1, bank 2 - no signal |
|
| Wiring, HO2S |
| Wiring, O2S |
| Wiring, HO2S, ECM |
|
| P2255 |
| Heated oxygen sensor (HO2S)
1, bank 2, negative current control - circuit low |
| Oxygen sensor (O2S) 1, bank
2, negative current control - circuit low |
|
| Wiring short to ground,
HO2S |
| Wiring short to ground,
O2S |
|
| P2256 |
| Heated oxygen sensor (HO2S)
1, bank 2, negative current control - circuit high |
| Oxygen sensor (O2S) 1, bank
2, negative current control - circuit high |
|
| Wiring short to positive,
HO2S |
| Wiring short to positive,
O2S |
|
| P2257 |
Secondary air injection
(AIR) system, control A - circuit low |
Wiring
short to ground, AIR pump relay, AIR pump, AIR solenoid |
| P2258 |
Secondary air injection
(AIR) system, control A - circuit high |
Wiring
short to positive, AIR pump relay, AIR pump, AIR solenoid |
| P2259 |
Secondary air injection
(AIR) system, control B - circuit low |
Wiring
short to ground, AIR pump relay, AIR pump, AIR solenoid |
| P2260 |
Secondary air injection
(AIR) system, control B - circuit high |
Wiring
short to positive, AIR pump relay, AIR pump, AIR solenoid |
| P2261 |
Turbocharger (TC) bypass
valve/supercharger (SC) bypass valve |
Mechanical fault |
| P2262 |
Turbocharger (TC) boost
pressure not detected |
Mechanical fault |
| P2263 |
Turbocharger (TC) boost
pressure/ supercharger (SC) boost pressure - performance problem |
Mechanical fault |
| P2264 |
Fuel/water separator
sensor - circuit malfunction |
Wiring,
fuel/water separator sensor |
| P2265 |
Fuel/water separator
sensor - range/ performance problem |
Wiring,
fuel/water separator sensor |
| P2266 |
Fuel/water separator
sensor - circuit low |
Wiring
short to ground, fuel/ water separator sensor |
| P2267 |
Fuel/water separator
sensor - circuit high |
Wiring
short to positive, fuel/ water separator sensor |
| P2268 |
Fuel/ water separator
sensor - circuit intermittent |
Wiring,
poor connection, fuel/ water separator sensor |
| P2269 |
Water in fuel |
Water in
fuel |
| P226A |
Water-in-fuel warning
lamp - circuit malfunction |
Wiring,
warning lamp, ECM |
| P2270 |
| Heated oxygen sensor (HO2S)
2, bank 1 - signal stuck lean |
| Oxygen sensor (O2S) 2, bank
1 - signal stuck lean |
|
| Wiring, HO2S, fuel
pressure, injectors, intake leak |
| Wiring, O2S, fuel
pressure, injectors, intake leak |
|
| P2271 |
| Heated oxygen sensor (HO2S)
2, bank 1 - signal stuck rich |
| Oxygen sensor (O2S) 2, bank
1 - signal stuck rich |
|
| Wiring, HO2S, fuel
pressure, injectors, air intake restricted |
| Wiring, O2S, fuel
pressure, injectors, air intake restricted |
|
| P2272 |
| Heated oxygen sensor (HO2S)
2, bank 2 - signal stuck lean |
| Oxygen sensor (O2S) 2, bank
2 - signal stuck lean |
|
| Wiring, HO2S, fuel
pressure, injectors, intake leak |
| Wiring, O2S, fuel
pressure, injectors, intake leak |
|
| P2273 |
| Heated oxygen sensor (HO2S)
2, bank 2 - signal stuck rich |
| Oxygen sensor (O2S) 2, bank
2 - signal stuck rich |
|
| Wiring, HO2S, fuel
pressure, injectors, air intake restricted |
| Wiring, O2S, fuel
pressure, injectors, air intake restricted |
|
| P2274 |
| Heated oxygen sensor (HO2S)
3, bank 1 - signal stuck lean |
| Oxygen sensor (O2S) 3, bank
1 - signal stuck lean |
|
| Wiring, HO2S, fuel
pressure, injectors, intake leak |
| Wiring, O2S, fuel
pressure, injectors, intake leak |
|
| P2275 |
| Heated oxygen sensor (HO2S)
3, bank 1 - signal stuck rich |
| Oxygen sensor (O2S) 3, bank
1 - signal stuck rich |
|
| Wiring, HO2S, fuel
pressure, injectors, air intake restricted |
| Wiring, O2S, fuel
pressure, injectors, air intake restricted |
|
| P2276 |
| Heated oxygen sensor (HO2S)
3, bank 2 - signal stuck lean |
| Oxygen sensor (O2S) 3, bank
2 - signal stuck lean |
|
| Wiring, HO2S, fuel
pressure, injectors, intake leak |
| Wiring, O2S, fuel
pressure, injectors, intake leak |
|
| P2277 |
| Heated oxygen sensor (HO2S)
3, bank 2 - signal stuck rich |
| Oxygen sensor (O2S) 3, bank
2 - signal stuck rich |
|
| Wiring, HO2S, fuel
pressure, injectors, air intake restricted |
| Wiring, O2S, fuel
pressure, injectors, air intake restricted |
|
| P2278 |
| Heated oxygen sensor (HO2S)
3, bank 1/heated oxygen sensor (HO2S) 3, bank 2 - signals
transposed |
| Oxygen sensor (O2S) 3, bank
1/oxygen sensor (O2S) 3, bank 2 - signals transposed |
|
|
| P2279 |
Intake air leak |
Mechanical fault |
| P2280 |
Air leak/blockage
between air filter and mass air flow (MAF) sensor |
Mechanical fault |
| P2281 |
| Air leak between mass air
flow (MAF) sensor and throttle body |
| Turbocharger (TC) boost
control position sensor - circuit malfunction |
| Engine blower fan - no
signal |
|
| Mechanical fault |
| Wiring, short to
positive, short to ground, TC boost control position sensor |
| Wiring, engine blower
fan, engine blower fan relay, ECM |
|
| P2282 |
Air leak between
throttle body and intake valves |
Mechanical fault |
| P2283 |
Injector control
pressure sensor - circuit malfunction |
Wiring,
injector control pressure sensor |
| P2284 |
Injector control
pressure sesor - range/ performance problem |
Wiring,
injector control pressure sensor |
| P2285 |
Injector control
pressure sensor - circuit low |
Wiring
short to ground, injector control pressure sensor |
| P2286 |
Injector control
pressure sensor - circuit high |
Wiring
short to positive, injector control pressure sensor |
| P2287 |
Injector control
pressure sensor - circuit intermittent |
Wiring,
poor connection, injector control pressure sensor |
| P2288 |
Injector control
pressure - pressure too high |
Fuel
pressure regulator, injector control pressure sensor |
| P2289 |
Injector control
pressure, engine off - pressure too high |
Fuel
pressure regulator |
| P2290 |
Injector control
pressure - pressure too low |
Fuel
pressure regulator, injector control pressure sensor |
| P2291 |
Injector control
pressure, engine cranking - pressure too low |
Fuel
pressure regulator, injector control pressure sensor |
| P2292 |
Injector control
pressure - erratic |
Fuel
pressure regulator, injector control pressure sensor |
| P2293 |
Fuel pressure regulator
2 - performance problem |
Wiring,
fuel pressure regulator |
| P2294 |
Fuel pressure regulator
2 - circuit malfunction |
Wiring,
fuel pressure regulator |
| P2295 |
Fuel pressure regulator
2 - circuit low |
Wiring
short to ground, fuel pressure regulator |
| P2296 |
Fuel pressure regulator
2 - circuit high |
Wiring
short to positive, fuel pressure regulator |
| P2297 |
| Heated oxygen sensor (HO2S)
1, bank 1 - signal out of range during deceleration |
| Oxygen sensor (O2S) 1, bank
1 - signal out of range during deceleration |
|
| HO2S, intake leak,
exhaust leak, injectors |
| O2S, intake leak, exhaust
leak, injectors |
|
| P2298 |
| Heated oxygen sensor (HO2S)
1, bank 2 - signal out of range during deceleration |
| Oxygen sensor (O2S) 1, bank
2 - signal out of range during deceleration |
|
| HO2S, intake leak,
exhaust leak, injectors |
| O2S, intake leak, exhaust
leak, injectors |
|
| P2299 |
Brake pedal position
(BPP) switch/ accelerator pedal position (APP) sensor - signals
incompatible |
Wiring,
BPP switch, APP sensor |
| P2300 |
Ignition coil A, primary
circuit - circuit low |
Wiring
short to ground, ignition coil |
