OBDII Alfa Romeo Code Definitions.
Be sure to double check the codes. Anything P1000 to P1999 or P3000 to P3400 will be Manufacturer specific and may not match the ones
listed here. Check specific manufacturer pages on the site, as some of them, we list the OBD2 codes on those pages for those specific vehicles.
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| Alfa Romeo Codes |
|---|
|
| Trouble Code | Fault Location |
|---|
P1100 – P1199 (Fuel and air metering) | | P1120 | Throttle control unit - malfunction |
| P1172 | Long trem fuel trim - at idle |
| P1173 | Long trem fuel trim - at increased engine RPM |
P1200 – P1299 (Fuel and air metering – injector circuit) | | P1211 | Battery Voltage Incorrect |
| P1212 | Idle Throttle Switch Or Circuit |
| P1213 | Full Throttle Swithc Or Circuit |
| P1214 | Engine Temperature Sensor |
| P1221 | Air Flow Meter Or Circuit |
| P1222 | Idle Adjustment Actuator Or Circuit |
| P1223 | HO2S Regulator Inner Adjuster Reaches Minimum Or Maximum Value of Correction |
| P1224 | Heated Oxygen Sensor |
| P1225 | Air Temperature Sensor |
| P1243 | Fuel Pump Relay Or Circuit |
| P1244 | Purge Control Solenoid Or Circuit |
| P1245 | Output Stage of ECU For Variable Valve Timing |
| P1251 | ECU Faulty |
| P1265 | Output Stage of ECU For Check Engine Lamp |
P1300 – P1399 (Ignition system or misfire) | | P1325 | Engine controlmodule (ECM),knock control - malfunction |
| P1331 | AC compressor clutch relay - signal malfunction |
P1500 – P1599 (Vehicle or idle speed control) | | P1511 | Idle speed control (ISC) actuator / idle speed control (ISC) actuator position sensor - circuit malfunction |
| P1512 | Idle speed control (ISC) - malfunction |
| P1513 | Idle speed control (ISC) actuator - circuit malfunction |
| P1531 | AC compressor clutch relay - circuit malfunction |
| P1555 | Brake pedal position (BPP) switch - signal malfunction |
| P1565 | Cruise control master switch - signal malfunction |
P1600 – P1699 (ECM – computer output circuit) | | P1653 | Camshaft position (CMP) actuator - signal malfunction |
| P1654 | Intake manifold air control solenoid - circuit malfunction |
| P1662 | Cruise control indicator lamp -malfunction |
| P1690 | Fuel shut-off control - malfunction |
