| P0550 | Power Steering Pressure Sensor Circuit Malfunction | - Open or short in power steering oil pressure sensor circuit | Comes on | DTC stored |
| | - Power steering oil pressure sensor | | |
| | - ECM | | |
| P0552 | Power Steering Pressure Sensor Circuit Low Input | - Open in power steering oil pressure sensor circuit | Comes on | DTC stored |
| | - Power steering oil pressure sensor | | |
| | - ECM | | |
| P0553 | Power Steering Pressure Sensor Circuit High Input | - Short in power steering oil pressure sensor circuit | Comes on | DTC stored |
| | - Power steering oil pressure sensor | | |
| | - ECM | | |
| P0560 | System Voltage | - Open in back up power source circuit | Comes on | DTC stored |
| | - Battery | | |
| | - Battery terminals | | |
| | - EFI NO. 1 fuse | | |
| | - ECM | | |
| P0604 | Random Access Memory (RAM) | ECM | Comes on | DTC stored |
| P0606 | ECM / PCM Processor | ECM | Comes on | DTC stored |
| P0607 | Control Module Performance | - Exhaust gas leak | Comes on | DTC stored |
| | - HO2S | | |
| | - ECM | | |
| P060A | Internal Control Module Monitoring Processor Performance | ECM | Comes on | DTC stored |
| P060B | Internal Control Module A/D Processing Performance | ECM | Comes on | DTC stored |
| P060D | Internal Control Module Accelerator Pedal Position Performance | ECM | Comes on | DTC stored |
| P060E | Internal Control Module Throttle Position Performance | ECM | Comes on | DTC stored |
| P0617 | Starter Relay Circuit High | - Park/Neutral Position (PNP) switch | Comes on | DTC stored |
| | - Starter relay circuit | | |
| | - Engine switch | | |
| | - ECM | | |
| P0630 | VIN not Programmed or Mismatch - ECM / PCM | ECM | Comes on | DTC stored |
| P0657 | Actuator Supply Voltage Circuit / Open | ECM | Comes on | DTC stored |
| P1340 | Camshaft Position Sensor "A" (Bank 1 Sensor 2) | - Open or short in camshaft position sensor circuit | Comes on | DTC stored |
| | - Camshaft position sensor | | |
| | - Camshaft timing plate LH | | |
| | - ECM | | |
| P1342 | Camshaft Position Sensor "A" Low Input (MRE) | - Open or short in camshaft position sensor circuit | Comes on | DTC stored |
| | - Camshaft position sensor | | |
| | - Camshaft timing plate LH | | |
| | - ECM | | |
| P1343 | Camshaft Position Sensor "A" High Input (MRE) | - Open or short in camshaft position sensor circuit | Comes on | DTC stored |
| | - Camshaft position sensor | | |
| | - Camshaft timing plate LH | | |
| | - ECM | | |
| P1607 | Cruise Control Input Processor | ECM | Comes on | DTC stored |
| P1613 | Secondary Air Injection Driver Malfunction | - Short in diagnostic information signal circuit (AID - ECM) | Comes on | DTC stored |
| | - Open in diagnostic information signal circuit (AID - ECM) | | |
| | - Open or short in air pump and air switching valve command signal circuit (AID - ECM) | | |
| | - Open or short in AID power source circuit | | |
| | - Open in AID ground circuit | | |
| | - AID | | |
| | - ECM | | |
| P1614 | Secondary Air Injection System Driver Bank 2 | - Short in diagnostic information signal circuit (AID - ECM) | Comes on | DTC stored |
| | - Open in diagnostic information signal circuit (AID - ECM) | | |
| | - Open or short in air pump and air switching valve command signal circuit (AID - ECM) | | |
| | - Open or short in AID power source circuit | | |
| | - Open in AID ground circuit | | |
| | - AID | | |
| | - ECM | | |
| P2102 | Throttle Actuator Control Motor Circuit Low | - Open in throttle actuator circuit | Comes on | DTC stored |
| | - Throttle actuator | | |
| | - ECM | | |
| P2103 | Throttle Actuator Control Motor Circuit High | - Short in throttle actuator circuit | Comes on | DTC stored |
| | - Throttle actuator | | |
| | - Throttle valve | | |
| | - Throttle body assembly | | |
| | - ECM | | |
| P2111 | Throttle Actuator Control System - Stuck Open | - Throttle actuator | Comes on | DTC stored |
| | - Throttle body assembly | | |
| | - Throttle valve | | |
| P2112 | Throttle Actuator Control System - Stuck Closed | - Throttle actuator | Comes on | DTC stored |
| | - Throttle body assembly | | |
| | - Throttle valve | | |
| P2118 | Throttle Actuator Control Motor Current Range / Performance | - Open in ETCS power source circuit | Comes on | DTC stored |
| | - Battery | | |
| | - Battery terminals | | |
| | - ETCS fuse | | |
| | - ECM | | |
| P2119 | Throttle Actuator Control Throttle Body Range / Performance | - ETCS | Comes on | DTC stored |
| | - ECM | | |
| P2120 | Throttle / Pedal Position Sensor / Switch "D" Circuit | - APP sensor | Comes on | DTC stored |
| | - ECM | | |
| P2121 | Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance | - Accelerator Pedal Position (APP) sensor | Comes on | DTC stored |
| | - ECM | | |
| P2122 | Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input | - APP sensor | Comes on | DTC stored |
| | - Open in VCPA circuit | | |
| | - Open or ground short in VPA circuit | | |
| | - ECM | | |
| P2123 | Throttle / Pedal Position Sensor / Switch "D" Circuit High Input | - APP sensor | Comes on | DTC stored |
| | - Open in EPA circuit | | |
| | - ECM | | |
| P2125 | Throttle / Pedal Position Sensor / Switch "E" Circuit | - APP sensor | Comes on | DTC stored |
| | - ECM | | |
| P2127 | Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input | - APP sensor | Comes on | DTC stored |
| | - Open in VCP2 circuit | | |
| | - Open or ground short in VPA2 circuit | | |
| | - ECM | | |
| P2128 | Throttle / Pedal Position Sensor / Switch "E" Circuit High Input | - APP sensor | Comes on | DTC stored |
| | - Open in EPA2 circuit | | |
| | - ECM | | |
| P2135 | Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation | - Short between VTA1 and VTA2 circuits | Comes on | DTC stored |
| | - TP sensor (built into throttle body) | | |
| | - ECM | | |
| P2138 | Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation | - Short between VPA and VPA2 circuits | Comes on | DTC stored |
| | - APP sensor | | |
| | - ECM | | |
| P2195 | Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1) | - Open or short in A/F sensor (for Sensor 1) circuit | Comes on | DTC stored |
| | - A/F sensor (for Sensor 1) | | |
| | - A/F sensor heater (for Sensor 1) | | |
| | - Integration relay | | |
| | - A/F sensor heater and integration relay circuits | | |
| | - Air induction system | | |
| | - Fuel pressure | | |
| | - Injector | | |
| | - ECM | | |
| P2196 | Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1) | - Open or short in A/F sensor (for Sensor 1) circuit | Comes on | DTC stored |
| | - A/F sensor (for Sensor 1) | | |
| | - A/F sensor heater (for Sensor 1) | | |
| | - Integration relay | | |
| | - A/F sensor heater and integration relay circuits | | |
| | - Air induction system | | |
| | - Fuel pressure | | |
| | - Injector | | |
| | - ECM | | |
| P2197 | Oxygen (A/F) Sensor Signal Stuck Lean (Bank 2 Sensor 1) | - Open or short in A/F sensor (for Sensor 1) circuit | Comes on | DTC stored |
| | - A/F sensor (for Sensor 1) | | |
| | - A/F sensor heater (for Sensor 1) | | |
| | - Integration relay | | |
| | - A/F sensor heater and integration relay circuits | | |
| | - Air induction system | | |
| | - Fuel pressure | | |
| | - Injector | | |
| | - ECM | | |
| P2198 | Oxygen (A/F) Sensor Signal Stuck Rich (Bank 2 Sensor 1) | - Open or short in A/F sensor (for Sensor 1) circuit | Comes on | DTC stored |
| | - A/F sensor (for Sensor 1) | | |
| | - A/F sensor heater (for Sensor 1) | | |
| | - Integration relay | | |
| | - A/F sensor heater and integration relay circuits | | |
| | - Air induction system | | |
| | - Fuel pressure | | |
| | - Injector | | |
| | - ECM | | |
| P2237 | Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1) | - Open in Air Fuel Ratio (A/F) sensor (for Bank 1 Sensor 1) circuit | Comes on | DTC stored |
| | - Air Fuel Ratio (A/F) sensor (for Bank 1 Sensor 1) | | |
| | - ECM | | |
| P2238 | Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1) | - Open or short in A/F sensor (for Bank 1 Sensor 1) circuit | Comes on | DTC stored |
| | - A/F sensor (for Bank 1 Sensor 1) | | |
| | - ECM | | |
| P2239 | Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1) | - Open or short in A/F sensor (for Bank 1 Sensor 1) circuit | Comes on | DTC stored |
| | - A/F sensor (for Bank 1 Sensor 1) | | |
| | - ECM | | |
| P2240 | Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 2 Sensor 1) | - Open in Air Fuel Ratio (A/F) sensor (for Bank 2 Sensor 1) circuit | Comes on | DTC stored |
| | - Air Fuel Ratio (A/F) sensor (for Bank 2 Sensor 1) | | |
| | - ECM | | |
| P2241 | Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 2 Sensor 1) | - Open or short in A/F sensor (for Bank 2 Sensor 1) circuit | Comes on | DTC stored |
| | - A/F sensor (for Bank 2 Sensor 1) | | |
| | - ECM | | |
| P2242 | Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 2 Sensor 1) | - Open or short in A/F sensor (for Bank 2 Sensor 1) circuit | Comes on | DTC stored |
| | - A/F sensor (for Bank 2 Sensor 1) | | |
| | - ECM | | |
| P2252 | Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1) | - Open or short in A/F sensor (for Bank 1 Sensor 1) circuit | Comes on | DTC stored |
| | - A/F sensor (for Bank 1 Sensor 1) | | |
| | - ECM | | |
| P2253 | Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1) | - Open or short in A/F sensor (for Bank 1 Sensor 1) circuit | Comes on | DTC stored |
| | - A/F sensor (for Bank 1 Sensor 1) | | |
| | - ECM | | |
| P2255 | Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 2 Sensor 1) | - Open or short in A/F sensor (for Bank 2 Sensor 1) circuit | Comes on | DTC stored |
| | - A/F sensor (for Bank 2 Sensor 1) | | |
| | - ECM | | |
| P2256 | Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 2 Sensor 1) | - Open or short in A/F sensor (for Bank 2 Sensor 1) circuit | Comes on | DTC stored |
| | - A/F sensor (for Bank 2 Sensor 1) | | |
| | - ECM | | |
| P2401 | Evaporative Emission System Leak Detection Pump Control Circuit Low | - Canister pump module (Reference orifice, leak detection pump, vent valve) | Comes on | DTC stored |
| | - Connector/wire harness (Canister pump module - ECM) | | |
| | - EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose) | | |
| | - ECM | | |
| P2402 | Evaporative Emission System Leak Detection Pump Control Circuit High | - Canister pump module (Reference orifice, leak detection pump, vent valve) | Comes on | DTC stored |
| | - Connector/wire harness (Canister pump module - ECM) | | |
| | - EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose) | | |
| | - ECM | | |
| P2419 | Evaporative Emission System Switching Valve Control Circuit Low | - Canister pump module (Reference orifice, leak detection pump, vent valve) | Comes on | DTC stored |
| | - Connector/wire harness (Canister pump module - ECM) | | |
| | - EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose) | | |
| | - ECM | | |
| P2420 | Evaporative Emission System Switching Valve Control Circuit High | - Canister pump module (Reference orifice, leak detection pump, vent valve) | Comes on | DTC stored |
| | - Connector/wire harness (Canister pump module - ECM) | | |
| | - ECM | | |
| P2431 | Secondary Air Injection System Air Flow / Pressure Sensor Circuit Range / Performance Bank1 | - Pressure sensor | Comes on | DTC stored |
| | - Open or short in pressure sensor circuit | | |
| | - ECM | | |
| P2432 | Secondary Air Injection System Air Flow / Pressure Sensor Circuit Low Bank1 | - Pressure sensor | Comes on | DTC stored |
| | - Open or short in pressure sensor circuit | | |
| | - ECM | | |
| P2433 | Secondary Air Injection System Air Flow / Pressure Sensor Circuit High Bank1 | - Pressure sensor | Comes on | DTC stored |
| | - Open or short in pressure sensor circuit | | |
| | - ECM | | |
