- P10C6Engine diagnostic status signals message counter incorrectChevrolet, Cadillac, GMC
- P1101Intake air flow system performanceChevrolet, Cadillac, GMC
- P1111HO2S 1 bank 1 — no activityHyundai
- P1120Accelerator pedal position sensor circuit malfunctionToyota, Lexus
- P1121Accelerator pedal position sensor range/performance problemToyota, Lexus
- P1125Throttle control motor circuit malfunctionToyota, Lexus
- P1126Magnetic clutch circuit malfunctionToyota, Lexus
- P1127ETCS actuator power source circuit malfunctionToyota, Lexus
- P1128Throttle control motor lock malfunctionToyota, Lexus
- P1129Electric throttle control system malfunctionToyota, Lexus
- P1130A/F sensor circuit range/performance (bank 1 sensor 1)Toyota, Lexus
- P1133A/F sensor circuit response malfunction (bank 1 sensor 1)Toyota, Lexus
- P1134HO2S 1 bank 1 — slow responseHyundai
- P1135A/F sensor heater circuit malfunction (bank 1 sensor 1)Toyota, Lexus
- P1140Engine load from MAF and throttle position incorrectHyundai
- P1150A/F sensor circuit range/performance (bank 2 sensor 1)Toyota, Lexus
- P1153A/F sensor circuit response malfunction (bank 2 sensor 1)Toyota, Lexus
- P1154HO2S 1 bank 2 — slow responseHyundai
- P1155A/F sensor heater circuit malfunction (bank 2 sensor 1)Toyota, Lexus
- P1200Fuel pump relay circuit malfunctionToyota, Lexus
- P1260PATS: theft attempt detected — starting blockedFord
- P129FFuel pump power control module fuel pump speed signal incorrectChevrolet, Cadillac, GMC
- P12A6Fuel pump power control module enable circuit performanceChevrolet, Cadillac, GMC
- P1300Igniter circuit malfunction (No. 1)Toyota, Lexus
- P1305Igniter circuit malfunction (No. 2)Toyota, Lexus
- P1307Rough road sensor faultHyundai
- P1308Rough road sensor voltage too lowHyundai
- P1310Igniter circuit malfunction (No. 3)Toyota, Lexus
- P1315Igniter circuit malfunction (No. 4)Toyota, Lexus
- P1320Igniter circuit malfunction (No. 5)Toyota, Lexus
- P1325Igniter circuit malfunction (No. 6)Toyota, Lexus
- P1326The KSDS system detected engine vibration — the connecting rod bearings may be wornHyundai, Kia
- P1330Igniter circuit malfunction (No. 7)Toyota, Lexus
- P1335Crankshaft position sensor circuit malfunction (engine running)Toyota, Lexus
- P1345VVT sensor/camshaft position sensor circuit malfunction (bank 1)Toyota, Lexus
- P1346VVT sensor/camshaft position sensor circuit range/performance (bank 1)Toyota, Lexus
- P1349VVT system malfunction (bank 1)Toyota, Lexus
- P1350VVT sensor/camshaft position sensor circuit malfunction (bank 2)Toyota, Lexus
- P1351VVT sensor/camshaft position sensor circuit range/performance (bank 2)Toyota, Lexus
- P1354VVT system malfunction (bank 2)Toyota, Lexus
- P1401EVAP: fuel tank leakage diagnostic module faultHyundai
- P1440EVAP: canister vent valve faultHyundai
- P146FEVAP: purge system pressure sensor performanceChevrolet, Cadillac, GMC
- P1500Starter signal circuit malfunctionToyota, Lexus
- P1502Wheel speed sensor circuit openHyundai
- P1505Idle air control valve circuit openHyundai
- P1507Idle air control valve closing coil circuit openHyundai
- P1510Idle air control valve circuit open or shortedHyundai
- P1516Throttle actuator control module throttle actuator position performanceChevrolet, Cadillac, GMC
- P1520Stop light switch signal malfunctionToyota, Lexus
- P1529Hyundai: gearbox control unit requests the Check Engine lightHyundai
- P1570The immobilizer has blocked engine starting (17978)Volkswagen, Audi, Skoda, Seat
- P1600ECM battery back-up circuit malfunctionToyota, Lexus
- P1604Engine startability malfunctionToyota, Lexus
- P1605Rough idlingToyota, Lexus
- P1606G-force sensor signal out of rangeHyundai
- P1610NATS: immobilizer in lockout mode (Lock Mode)Nissan, Infiniti
- P1611MIL circuit voltage lowHyundai
- P1614MIL request signal circuit voltage highHyundai
- P1624MIL request circuit (TCM to PCM) malfunctionKia
- P1626Anti-theft system (Passlock): start authorization errorChevrolet, GM, Daewoo
- P1631Anti-theft system: wrong code between unitsChevrolet, GM, Daewoo
- P1632The anti-theft system has cut off the fuel supplyChevrolet, GM, Daewoo
- P1633ECM malfunction (ETCS circuit)Toyota, Lexus, Hyundai
- P1652IACV control circuit malfunctionToyota, Lexus
- P1656OCV circuit malfunction (bank 1)Toyota, Lexus
- P1663OCV circuit malfunction (bank 2)Toyota, Lexus
- P1682Ignition 1 switch circuit 2Chevrolet, Cadillac, GMC
- P1690SMARTRA: no response from the immobilizer moduleHyundai, Kia
- P1691Immobilizer: antenna faultHyundai, Kia
- P1692Immobilizer: lamp errorHyundai, Kia
- P1693Immobilizer: transponder no response or invalid responseHyundai, Kia
- P1694Immobilizer: invalid request from ECM / corrupted dataHyundai, Kia
- P1695Immobilizer: EEPROM memory error in ECMHyundai, Kia
- P16DCStop/start system disabled (battery sensor related)Chevrolet, Cadillac, GMC
- P16F3Engine control module safety check failed, power reducedChevrolet, Cadillac, GMC