Opel — fault codes starting with P12

137 fault codes starting with P12 on Opel vehicles, with descriptions: P1203, P1204, P1205 and more. Look up a code, read what it means.

Fault codes
137
Block
P12
Make group
Opel
Source language
English

The 137 Opel fault codes that start with P12, with descriptions.

CodeDescription
P1203Injectors supply voltage
P1204Injectors supply voltage
P1205Differential pressure-Too low
P1206Piloting of the fuel pressure regulator
P1207Fuel pressure regulator control
P1208Information transmitted by the engine ECU
P1209Petrol high pressure regulation fault
P120ACharging socket unit temperature sensors circuits
P120BCharging socket unit temperature sensors circuits
P120COn-board charger/direct voltage transformer assembly temperature sensor
P120DOn-board charger/direct voltage transformer assembly temperature sensor
P1210Fuel pressure regulation electrovalve
P1211Defective vehicle speed signal
P1213In the information transmitted by the dynamic stability control (ESP) ECU
P1214Fuel tank isolation solenoid valve
P1215Fuel tank isolation solenoid valve
P1217Liquid Petroleum Gas system
P1218ECU initialisation
P1219Particle filter regeneration
P121AStatus of the gas system
P121BStatus of the gas system
P121CStatus of the gas system
P1223Diesel injectors 1, 2, 3, 4
P1224Diesel injectors 1, 2, 3, 4
P122AElectric drive machine inverter temperature sensor
P122BTraction battery
P122CTraction battery
P1231In the information transmitted by the dynamic stability control (ESP) ECU
P1232Engine speed signal in down-grade mode fault
P1233Motorised throttle 1 signal error
P1234Turbocharger fault Pressure too high
P1235Air flow sensor signal
P1236Injection ECU fault
P1237Accelerator pedal signal fault
P1238Inlet manifold pressure signal fault
P1239Engine speed signal fault
P1240In the information transmitted by the dynamic stability control (ESP) ECU
P1241Engine torque delivered anomaly fault
P1242Engine speed signal in down-grade mode fault
P1243Injection ECU fault
P1244Injection ECU fault
P1245Injection ECU fault
P1247Information transmitted by the gearbox ECU
P1248Oxygen sensor voltage
P1250Regeneration not completed
P1254Particle emission filter upstream pressure
P1255Too many regeneration requests
P1256Differential pressure fixed
P1257Liquid Petroleum Gas system
P1259Control of the cylinder 1 fuel injector
P1260Control of the cylinder 2 fuel injector
P1261Control of the cylinder 3 fuel injector
P1262EGR control fault during the regeneration
P1269Turbo pressure signal (turbo 2)
P1272Regulation High pressure carburant
P1273Regulation High pressure carburant
P1274High pressure fuel pump protection fault
P1275Fuel pressure measured in the fuel high pressure common rail
P1276Fuel filter pressure sensor fault
P1277Fuel filter pressure sensor fault
P1279Exhaust Heat Recovery Valve
P1280Signal from the motorised throttle housing position sensor (Air mixer unit)
P1288Fuel high pressure common rail fuel pressure reference value
P1290Air intake solenoid valve
P1292Air intake solenoid valve
P1293Air intake solenoid valve
P1294Fuel circuit
P1297High pressure fuel circuit pressure (Maximum pressure)
P1298Charge pressure regulation
P1299Charge pressure regulation
P129ATurbine valve position repeat signal 2
P129BTurbine valve position repeat signal 2
P129ETurbine valve position repeat signal 2
P129FAir circuit
P12A0Air circuit
P12A1Cylinder 1 fuel injector
P12A21. cylinder
P12A3Correction of injector flow rate cylinder 1
P12A4Cylinder 2 fuel injector
P12A52. cylinder
P12A6Correction of injector flow rate cylinder 2
P12A7Cylinder 3 fuel injector
P12A83. cylinder
P12A9Correction of injector flow rate cylinder 3
P12AACylinder 4 fuel injector
P12AB4. cylinder
P12ACCorrection of injector flow rate cylinder 4
P12ADInjector 5
P12AEInjector 5
P12AFInjector 5
P12B0Injector 6
P12B1Injector 6
P12B2Injector 6
P12B3EGR valve
P12B4EGR valve
P12B5Fuel pressure measured in the fuel high pressure common rail
P12B6Fuel pressure measured in the fuel high pressure common rail
P12BBEGR valve 2 (Bumper side)
P12BCEGR valve 2 (Bumper side)
P12D7Charging socket unit red LED wire circuit
P12D8Charging socket unit green LED wire circuit
P12D9Charging socket unit blue LED wire circuit
P12DACharging socket unit locking LED wire circuit
P12DBCharging socket locking voltage sensor
P12DCCharging socket locking voltage sensor
P12DDCharging socket locking actuator control circuit
P12DECharging socket locking actuator control circuit
P12DFCharging socket locking actuator control circuit
P12E0Charging socket locking actuator control circuit
P12E1Charging socket locking actuator control circuit
P12E2Charging socket locking actuator control circuit
P12E3Charging socket locking actuator control circuit
P12E7Charging socket unit temperature sensors circuits
P12E8Charging socket unit temperature sensors circuits
P12E9Charging socket unit temperature sensors circuits
P12EACharging socket unit temperature sensors circuits
P12EBOn-board charger/direct voltage transformer
P12ECOn-board charger/direct voltage transformer
P12EDTraction battery cooling circuit electric coolant pump
P12EEOn-board charger / direct voltage transformer assembly
P12EFOn-board charger / direct voltage transformer assembly
P12F0On-board charger / direct voltage transformer assembly
P12F1On-board charger / direct voltage transformer assembly
P12F2On-board charger/direct voltage transformer
P12F3On-board charger/direct voltage transformer
P12F4On-board charger/direct voltage transformer assembly internal alternating voltage value
P12F5On-board charger/direct voltage transformer
P12F6On-board charger/direct voltage transformer assembly internal alternating current value
P12F7On-board charger/direct voltage transformer assembly internal alternating current value
P12F8On-board charger/direct voltage transformer assembly internal alternating current value
P12F9On-board charger/direct voltage transformer assembly output direct voltage value
P12FAOn-board charger/direct voltage transformer assembly output direct voltage value
P12FBOn-board charger/direct voltage transformer assembly output direct voltage value
P12FCOn-board charger/direct voltage transformer assembly internal voltage value
P12FDOn-board charger/direct voltage transformer assembly output direct voltage value
P12FEOn-board charger/direct voltage transformer assembly internal voltage value
P12FFOn-board charger/direct voltage transformer assembly internal voltage value

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Code descriptions are shown in their source language; records without a translation stay raw. Source: CarCoding fault code database.

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