OBDII Subaru 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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| Subaru Codes | ||
|---|---|---|
| Trouble Code | Fault Location | Probable Cause | P1000 – P1099 (Fuel and air metering and auxiliary emission control) |
| P1086 | Intake manifold air control actuator position sensor, LH – voltage low | Wiring, intake manifold air control actuator position sensor, ECM |
| P1087 | Intake manifold air control actuator position sensor, LH – voltage high | Wiring, intake manifold air control actuator position sensor, ECM |
| P1088 | Intake manifold air control actuator position sensor, RH – voltage low | Wiring, intake manifold air control actuator position sensor, ECM |
| P1089 | Intake manifold air control actuator position sensor, RH – voltage high | Wiring, intake manifold air control actuator position sensor, ECM |
| P1090 | Intake manifold air control actuator, RH – stuck open | Wiring, intake manifold air control actuator position sensor, ECM |
| P1091 | Intake manifold air control actuator, RH – stuck closed | Wiring, intake manifold air control actuator position sensor, ECM |
| P1092 | Intake manifold air control actuator, LH – stuck open | Wiring, intake manifold air control actuator position sensor, ECM |
| P1093 | Intake manifold air control actuator, LH – stuck closed | Wiring, intake manifold air control actuator position sensor, ECM |
| P1094 | Intake manifold air control actuator, RH – open circuit | Wiring, intake manifold air control actuator position sensor, ECM |
| P1095 | Intake manifold air control actuator, RH – over currenVshort circuit | Wiring, intake manifold air control actuator position sensor, ECM |
| P1096 | Intake manifold air control actuator, LH – open circuit | Wiring, intake manifold air control actuator position sensor, ECM |
| P1097 | Intake manifold air control actuator, LH – over currenVshort circuit | Wiring, intake manifold air control actuator position sensor, ECM | P1100 – P1199 (Fuel and air metering) |
| P1100 | Starter signal – circuit malfunction | Starter motor circuit, NPITR switch, CPP switch, ECM |
| P1101 | Park/neutral position (PNP) switch – circuit malfunction | Wiring, PNP switch, ECM |
| P1102 | MAP/BARO sensor switching valve – circuit malfunction | Wiring, MAP/BARO sensor switching valve, ECM |
| P1103 | Engine torque control signal 1 – circuit malfunction | Wiring, ECM, TCM |
| P1104 | Traction control signal – circuit malfunction | Wiring, traction control module |
| P1106 | Engine torque control signal 2 – circuit malfunction | Wiring, ECM, TCM |
| P1107 | Secondary air injection (AIR) diagnosis solenoid – circuit malfunction | Wiring, AIR diagnosis solenoid, ECM |
| P1108 | Induction Control Solenoid Valve Circuit Malfunction | |
| P1110 | Barometric pressure (BARO) sensor- voltage low | Wiring, BARO sensor, ECM |
| P1111 | Barometric pressure (BARO) sensor- voltage high | Wiring, BARO sensor, ECM |
| P1112 | Barometric pressure (BARO) sensor- range/performance problem | Wiring, BARO sensor, ECM |
| P1115 | Engine torque control cut signal – voltage high | Wiring, ECM, TCM |
| P1116 | Engine torque control cut signal – voltage low | Wiring, ECM, TCM |
| P1120 | Starter signal – voltage high | Starter motor circuit, wiring short to positive, ECM |
| P1121 | Park/neutral position (PNP) switch/neutral position (NP) switch – voltage low | Wiring short to ground, selector cable, PNP switch, ECM |
| P1122 | MAP/BARO sensor switching valve- voltage high | Wiring open/short to positive, MAP/BARO sensor switching valve, ECM |
| P1124 | Traction control signal – voltage high | Wiring open/short to positive |
| P1130 | Heated oxygen sensor (H02S) 1 -open circuit | Wiring, H02S, ECM |
| P1131 | Heated oxygen sensor (H02S) 1 -short circuit | Wiring, H02S, ECM |
| P1132 | Heated oxygen sensor (H02S) 1 -voltage low | Wiring, H025, ECM |
| P1133 | Heated oxygen sensor (H02S) 1 – voltage high | Wiring, H025, ECM |
| P1134 | Engine control module (ECM) | ECM |
| P1135 | Front Left Oxygen Sensor Circuit Open | |
| P1136 | Front Left Oxygen Sensor Curcuit Shorted | |
| P1137 | Heated oxygen sensor (H02S) 1 – range/performance problem | Wiring, H025, ECM |
| P1139 | Heated oxygen sensor (H02S) 1, heater control – range/performance problem | Wiring, H02S, ECM |
| P1140 | Heated oxygen sensor (H02S) 1, bank 2, heater – range/performance problem | Wiring, H025, ECM |
| P1141 | Mass air flow (MAF) sensor – range/performance problem voltage high | MAF sensor |
| P1142 | Throttle position (TP) sensor – range/performance problem voltage low | TP sensor |
| P1143 | MAP/BARO sensor – range/performance problem voltage low | Hose leak/blockage, MAP/BARO sensor, MAP/BARO sensor switching solenoid |
| P1144 | Manifold absolute pressure (MAP) sensor/barometric pressure (BARO) sensor- range/performance problem voltage high | MAP/BARO sensor |
| P1146 | Manifold absolute pressure (MAP) sensor – range/performance problem voltage high | Wiring, MAP sensor, TP sensor |
| P1150 | Heated oxygen sensor (H02S) 1, heater- voltage high | Wiring, H025, ECM |
| P1151 | Heated oxygen sensor (H02S) 2 – voltage high | Wiring, H02S, ECM |
| P1152 | Heated oxygen sensor (H02S) 1, bank 1 – range/performance problem voltage low | Wiring, H02S, ECM |
| P1153 | Heated oxygen sensor (H02S) 1, bank 1 – range/performance problem voltage high | Wiring, H025, ECM |
| P1154 | Heated oxygen sensor (H02S) 1, bank 2 – range/performance problem voltage low | Wiring, H02S, ECM |
| P1155 | Heated oxygen sensor (H02S) 1, bank 2 – range/performance problem voltage high | Wiring, H02S, ECM |
| P1160 | Throttle actuator control (TAC) – return spring failure | Wiring, TAC motor | P1200 – P1299 (Fuel and air metering – injector circuit) |
| P1207 | Injector air control solenoid – voltage low | Wiring, injector air control solenoid, ECM |
| P1208 | Knock sensor (KS)- voltage low | Wiring, KS, ECM |
| P1230 | Fuel pump (FP) control module – circuit malfunction | Wiring, FP control module, ECM |
| P1244 | Turbocharger (TC) wastegate regulating valve – voltage low | Wiring, TC wastegate regulating valve, ECM |
| P1245 | Turbocharger (TC) wastegate regulating valve – failsafe | Wiring, TC wastegate regulating valve, ECM | P1300 – P1399 (Ignition system or misfire) |
| P1300 | Crankshaft Position Sensor 2 Circuit Malfunction | |
| P1301 | Exhaust gas temperature sensor – misfire/fire due to increased temperature | Repair other DTC’s, replace pre-CAT |
| P1312 | Exhaust gas temperature sensor | Wiring, exhaust gas temperature sensor |
| P1325 | Knock sensor (KS) -voltage low | Wiring, KS, ECM | P1400 – P1499 (Emission control) |
| P1400 | Fuel tank vent valve – circuit malfunction voltage low | Wiring open/short to ground, fuel tank vent valve, ECM |
| P1401 | Fuel tank pressure control system – malfunction | EVAP system, fuel tank pressure sensor |
| P1402 | Fuel level sensor- circuit malfunction | Wiring, instrument cluster, fuel level sensor, ECM |
| P1410 | Secondary air injection (AIR) solenoid – stuck open | Wiring, air leaks, AIR solenoid |
| P1418 | Secondary air (AIR) system – circuit malfunction | Wiring, AIR pump relay, AIR pump, ECM |
| P1420 | Fuel tank vent valve -circuit malfunction voltage high | Wiring open/short to positive, fuel tank vent valve, ECM |
| P1421 | Exhaust gas recirculation (EGR) system – voltage high | Wiring open/short to positive, EGR solenoid, ECM |
| P1422 | Evaporative emission (EVAP) canister purge valve – voltage high | Wiring open/short to positive, EVAP valve, ECM |
| P1423 | Evaporative emission (EVAP) canister purge system – vent control voltage high | Wiring open/short to positive, EVAP vent valve, ECM |
| P1440 | Fuel tank pressure control system – voltage low | Fuel tank pressure control solenoid, fuel filler cap, EVAP drain/vent valve, EVAP canister/valve, fuel tank, hose/pipe leak |
| P1441 | Fuel tank pressure control system – voltage high | Fuel tank pressure control solenoid, fuel filler cap, EVAP drain/vent valve, EVAP valve, fuel tank, hose/pipe blockage |
| P1442 | Fuel level sensor- range/performance problem | Fuel level sensor |
| P1443 | Evaporative emission (EVAP) canister purge valve – vent control malfunction | Hose blockage, EVAP canister purge valve |
| P1445 | Injector air control solenoid – circuit malfunction | Wiring, injector air control solenoid, ECM |
| P1446 | Evaporative emission (EVAP) canister purge valve – voltage low | Wiring, EVAP canister purge valve, ECM |
| P1447 | Evaporative emission (EVAP) canister purge valve – voltage high | Wiring, EVAP canister purge valve, ECM |
| P1448 | Evaporative emission (EVAP) canister purge valve – range/performance problem | Wiring, EVAP canister purge valve, ECM |
| P1480 | Engine coolant blower motor relay 1 – voltage high | Wiring, blower motor relay, ECM |
| P1490 | Thermostat – malfunction | Thermostat, cooling system, engine coolant blower motor |
| P1491 | Positive crankcase ventilation (PCV) – malfunction | Wiring, hose blocked/leaking |
| P1492 | Exhaust gas recirculation (EGR) solenoid valve – signal 1 – voltage low | Wiring, EGR solenoid valve |
| P1493 | Exhaust gas recirculation (EGR) solenoid valve – signal 1 – voltage high | Wiring, EGR solenoid valve, ECM |
| P1494 | Exhaust gas recirculation (EGR) solenoid valve – signal 2 – voltage low | Wiring, EGR solenoid valve |
| P1495 | Exhaust gas recirculation (EGR) solenoid valve – signal 2 – voltage high | Wiring, EGR solenoid valve, ECM |
| P1496 | Exhaust gas recirculation (EGR) solenoid valve – signal 3 – voltage low | Wiring, EGR solenoid valve |
| P1497 | Exhaust gas recirculation (EGR) solenoid valve – signal 3 – voltage high | Wiring, EGR solenoid valve, ECM |
| P1498 | Exhaust gas recirculation (EGR) solenoid valve – signal 4 – voltage low | Wiring, EGR solenoid valve |
| P1499 | Exhaust gas recirculation (EGR) solenoid valve – signal 4 – voltage high | Wiring, EGR solenoid valve, ECM | P1500 – P1599 (Vehicle or idle speed control) |
| P1500 | Engine coolant blower motor relay 1 – circuit malfunction | Wiring, blower motor relay, ECM |
| P1501 | Radiator Fan Relay 2 Circuit Malfunction | |
| P1502 | Engine coolant blower motor – malfunction | Cooling system, radiator ventilation obstructed |
| P1504 | Vehicle Speed Sensor CAN Malfunction | |
| P1505 | Idle air (lAC) control valve – voltage high | Wiring, lAC valve, ECM |
| P1507 | Idle air (lAC) control system – malfunction | Intake system, lAC valve |
| P1510 | Idle air (lAC) control valve, circuit 1 – voltage low | Wiring, lAC valve, ECM |
| P1511 | Idle air (lAC) control valve, circuit 1 – voltage high | Wiring, lAC valve, ECM |
| P1512 | Idle air (lAC) control valve, circuit 2 – voltage low | Wiring, lAC valve, ECM |
| P1513 | Idle air (lAC) control valve, circuit 2 – voltage high | Wiring, lAC valve, ECM |
| P1514 | Idle air (lAC) control valve, circuit 3 – voltage low | Wiring, lAC valve, ECM |
| P1515 | Idle air (lAC) control valve, circuit 3 – voltage high | Wiring, lAC valve, ECM |
| P1516 | Idle air (lAC) control valve, circuit 4 – voltage low | Wiring, lAC valve, ECM |
| P1517 | Idle air (lAC) control valve, circuit 4 – voltage high | Wiring, lAC valve, ECM |
| P1518 | Starter motor switch – circuit malfunction | Wiring |
| P1520 | Engine coolant blower motor relay 1 – voltage high | Wiring open/short to positive, blower motor relay, ECM |
| P1521 | Brake Switch Circuit Range | |
| P1540 | Vehicle speed sensor (VSS) – malfunction 2 | Wiring, instrument cluster, VSS, ECM |
| P1544 | Exhaust gas temperature sensor – increased temperature detected | Repair other DTC’s, exhaust system, replace pre-CAT |
| P1560 | Engine control module (ECM) – battery voltage supply | Wiring, fuse, ECM |
| P1570 | Immobilizer read coil | Wiring, immobilizer read coil, immobilizer control module |
| P1571 | Engine control module (ECM) – incorrect immobilizer code | Immobilizer code not programmed |
| P1572 | Immobilizer control module/ECM – circuit malfunction | Wiring, immobilizer control module, ECM |
| P1574 | Immobilizer control module – communication error | Wiring, key not programmed, immobilizer control module |
| P1576 | Engine control module (ECM) – EEPROM error | ECM |
| P1577 | Immobilizer control module – EEPROM error | . Immobilizer control module |
| P1578 | Immobilizer system – incorrect signal | Incorrect key has been used |
| P1590 | Park neutral position (PNP) switch – voltage high | Wiring, PNP switch, ECM |
| P1591 | Park neutral position (PNP) switch – voltage low | Wiring, PNP switch, ECM |
| P1592 | Park neutral position (PNP) switch – circuit malfunction | Wiring, PNP switch, ECM |
| P1594 | Transmission control module (TCM) – communication circuit malfunction | Wiring, TCM, ECM |
| P1595 | Transmission control module (TCM) – communication circuit voltage low | Wiring, TCM, ECM |
| P1596 | Transmission control module (TCM) – communication circuit voltage high | Wiring, TCM, ECM | P1600 – P1699 (ECM – computer output circuit) |
| P1602 | Engine control module (ECM) – programming error | Wiring, other trouble code(s) stored, mechanical fault, incorrect programming, incorrect ECM, ECM |
| P1698 | Engine torque control cut signal – voltage low | Wiring, ECM, TCM |
| P1699 | Engine torque control cut signal – voltage high | Wiring, ECM, TCM | P1700 – P1799 (Transmission) |
| P1700 | AT- throttle position (TP) sensor- circuit malfunction | Wiring, TP sensor |
| P1701 | Cruise control set signal – AT- circuit malfunction | Wiring, cruise control switch, TCM |
| P1702 | AT diagnosis signal – voltage low | Wiring short circuit, TCM |
| P1703 | Shift solenoid (SS) low clutch timing – circuit malfunction | Wiring, shift solenoid, TCM |
| P1704 | Shift solenoid (SS) 2-4 brake timing – circuit malfunction | Wiring, shift solenoid, TCM |
| P1705 | Shift solenoid (SS) 2-4 brake pressure control – circuit malfunction | Wiring, shift solenoid, TCM |
| P1710 | TC Turbine Speed Sensor 2 | |
| P1711 | Engine torque control signal 1 -circuit malfunction | Wiring, ECM, TCM |
| P1712 | Engine torque control signal 2 – circuit malfunction | Wiring, ECM, TCM |
| P1718 | Automatic Transmission CAN Communication Circuit | |
| P1722 | AT diagnosis signal – voltage high | Wiring short to positive, TCM, ECM |
| P1742 | Automatic transmission diagnosis signal – circuit malfunction | Wiring, TCM |