| OBD·II code | Fault location | Probable cause |
| PO,P2,UO | Refer to OBD-11 trouble code tables | – |
| P1009 | Camshaft position (CMP), intake/lefUfront, bank 1 – circuit malfunction/timing
over-advanced/system performance | Wiring, valve timing, engine mechanical fault, CMP actuator, ECM |
| P1109 | Barometric pressure (BARO) sensor- range/performance problem | BARO sensor, ECM programming, ECM |
| P1116 | Engine coolant temperature (ECT) sensor – range/performance problem | Wiring, ECT sensor, ECM programming, ECM |
| P1121 | Throttle position (TP) sensor – position lower than expected | TP sensor |
| P1122 | Throttle position (TP) sensor – position higher than expected | TP sensor |
| P1128 | Manifold absolute pressure (MAP) sensor – pressure lower than expected | Wiring, MAP sensor |
| P1129 | Manifold absolute pressure (MAP) sensor – pressure higher than expected | Wiring, MAP sensor |
| P1157 | Heated oxygen sensor (H02S) – circuit malfunction | Wiring, H02S, ECM programming, ECM |
| P1172 | Heated oxygen sensor (H02S) 1 – circuit malfunction | Wiring, H02S, ECM programming, ECM |
| P1297 | Electrical load sensor – circuit/voltage low | Wiring, electrical load sensor, ECM
programming, ECM |
| P1298 | Electrical load sensor – circuit/voltage high | Wiring, electrical load sensor, ECM
programming, ECM |
| P145C | Evaporative emission (EVAP) canister purge system – incorrect flow | Wiring, hose leak/blockage, EVAP canister purge valve, mechanical fault, ECM programming, ECM |
| P1454 | Fuel tank pressure sensor – range/performance problem
| Wiring, hose, fuel tank pressure sensor, fuel filler cap, EVAP canister/vent valve, ECM programming, ECM |
| P1549 | Generator system – high voltage | Wiring, generator, ECM programming, ECM |
| P1658 | Electronic throttle system (ETS) control relay – on malfunction | Wiring, fuse, ETS control relay, underhood fusebox/refay plate, ECM programming, ECM |
| P1659 | Electronic throttle system (ETS) control relay – off malfunction | Wiring, fuse, ETS control relay, underhood fusebox/relay plate, ECM programming, ECM |
| P1688 | Generator system – low voltage | Wiring, generator, ECM programming, ECM |
| P168C | Generator system – low voltage | Wiring, generator, ECM programming, ECM |
| P16CO | Engine control module (ECM) – malfunction | ECM programming, ECM |
| P1683 | Throttle motor – default position spring performance problem | Wiring, throttle sticking/mechanically damaged, throttle motor |
| P1684 | Throttle motor – return spring performance problem | Wiring, throttle sticking/mechanically damaged, throttle motor |
| P1717 | Transmission range (TR) switch – open circuit | Wiring, transmission shift fink adjustment, TR switch, ECM programming, ECM |
| P1730 | AT- gear shift malfunction | Transmission fluid, mechanical fault, wiring, shift solenoid A/8/D, ECM programming, ECM |
| P1731 | AT – gear shift malfunction | Transmission fluid, mechanical fault, wiring, shift solenoid E, AT clutch pressure control solenoid A, ECM programming, ECM |
| P1732 | AT – gear shift malfunction | Transmission fluid, mechanical fault, wiring, shift solenoid 8/C, ECM programming, ECM |
| P1733 | AT- gear shift malfunction | Transmission fluid, mechanical fault, wiring, shift solenoid D, AT clutch pressure control solenoid C, ECM programming, ECM |
| P1734 | AT- gear shift malfunction | Transmission fluid, mechanical fault, wiring, shift solenoid 8/C, ECM programming, ECM |
| P1735 | AT – gear shift malfunction | Transmission fluid, mechanical fault, wiring, shift solenoid 8/C/E, AT clutch pressure control solenoid A, ECM programming, ECM |
| P1736 | AT- gear shift malfunction | Transmission fluid, mechanical fault, wiring, shift solenoid B/E, AT clutch pressure control solenoid A, ECM programming, ECM |
| P1746 | AT – gear shift malfunction | Transmission fluid, mechanical fault, wiring, shift solenoid AlB, ECM programming, ECM |
| P1747 | AT – gear shift malfunction | Transmission fluid, mechanical fault, wiring, shift solenoid AlB, ECM programming, ECM |
| P1780 | AT – gear shift malfunction | Other AT trouble codes stored, ECM
programming, ECM |
