October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Engine General Information & Diagnosis Expand All (for easy ctrl-f) Collapse All Precautions General Description Schematic and Routing Diagram Diagnostic Information and Procedures Engine System Check Visual Inspection Engine Basic Check Malfunction Indicator Lamp (MIL) Check DTC Table DTC Check DTC Clearance Fail-Safe Table Scan Tool Data Engine Symptom Diagnosis MIL Does Not Come ON or MIL Dims at Ignition Switch ON Leaving Engine OFF MIL Remains ON after Engine Starts MIL Does Not Light at Ignition Switch ON and Engine Does Not Start though It Is Cranked Up DTC P0101: Mass Air Flow (MAF) Sensor Performance Problem DTC P0102: Mass Air Flow (MAF) Sensor Circuit Low Voltage DTC P0103: Mass Air Flow (Maf) Sensor Circuit High Voltage DTC P0107, P0108: Manifold Absolute Pressure Sensor Circuit Low/High Input DTC P0111: Intake Air Temperature (IAT) Sensor Circuit Range / Performance Problem Dtc P0112: Intake Air Temperature (IAT) Sensor Circuit Low Input DTC P0113: Intake Air Temperature (IAT) Sensor Circuit High Input DTC P0116: Engine Coolant Temperature (ECT) Sensor Performance DTC P0117: Engine Coolant Temperature (ECT) Sensor Circuit Low Input DTC P0118: Engine Coolant Temperature (ECT) Sensor Circuit High Input DTC P0121: Throttle Position (TP) Sensor Circuit Performance Problem DTC P0122: Throttle Position (TP) Sensor Circuit Low Input DTC P0123: Throttle Position (TP) Sensor Circuit High Input DTC P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control DTC P0128: Coolant Thermostat (Coolant Temp. below Thermostat Regulating Temp.) DTC P0131: HO2S (Bank-1 Sensor-1) Circuit Low Voltage DTC P0132: HO2S (Bank-1 Sensor-1) Circuit High Voltage DTC P0133: HO2S (Bank-1 Sensor-1) Circuit Slow Response DTC P0134: HO2S (Bank-1 Sensor-1) No Activity Detected DTC P0135: HO2S (Bank-1 Sensor-1) Heater Circuit Malfunction DTC P0137, P0138: HO2S (Bank-1 Sensor-2) Circuit Low Voltage/High Voltage DTC P0141: HO2S (Bank-1 Sensor-2) Heater Circuit Malfunction DTC P0151: HO2S (Bank-2 Sensor-1) Circuit Low Voltage DTC P0152: HO2S (Bank-2 Sensor-1) Circuit High Voltage DTC P0153: HO2S (Bank-2 Sensor-1) Circuit Slow Response DTC P0154: HO2S (Bank-2 Sensor-1) No Activity Detected DTC P0155: HO2S (Bank-2 Sensor-1) Heater Circuit Malfunction DTC P0157, P0158: HO2S (Bank-2 Sensor-2) Circuit Low Voltage/High Voltage DTC P0161: HO2S (Bank-2 Sensor-2) Heater Circuit Malfunction DTC P0171, P0172: Fuel System Too Lean/Rich (Bank-1) DTC P0174, P0175: Fuel System Too Lean/Too Rich (Bank-2) DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306: Misfire Detected DTC P0335: Crankshaft Position (CKP) Sensor Circuit Malfunction DTC P0340: Camshaft Position (CMP) Sensor Circuit Malfunction DTC P0401, P0402: Exhaust Gas Recirculation (EGR) Flow Insufficient Detected/Excessive Detected DTC P0403: Exhaust Gas Recirculation (EGR) Control Circuit DTC P0420, P0430: Catalyst System (Bank-1/-2) Efficiency Below Threshold DTC P0442, P0455: Evaporative Emission Control System Leak Detected DTC P0444, P0496: Evaporative Emission Control System Purge Control Valve Circuit Open/EVAP System Flow During Non-Purge DTC P0445: Evaporative Emission Control System Purge Control Valve Circuit Shorted DTC P0447: Evaporative Emission Control System Vent Control Circuit Open DTC P0448: Evaporative Emission Control System Vent Control Circuit Shorted DTC P0451: Evaporative Emission Control System Pressure Sensor Performance DTC P0452, P0453: Evaporative Emission Control System Pressure Sensor Low/High Input DTC P0456: Evaporative Emission System Leak Detected (Very Small Leak) DTC P0461: Fuel Level Sensor Circuit Performance DTC P0463: Fuel Level Sensor Circuit High Input DTC P0464: Fuel Level Sensor Circuit Intermittent DTC P0500: Vehicle Speed Sensor (VSS) Malfunction DTC P0505, P0506, P0507: Idle Control System/RPM Lower than Expected/RPM Higher than Expected DTC P0601: Internal Control Module Memory Check Sum Error DTC P0616, P0617: Starter Relay Circuit Low/High DTC P1107, P1108: Manifold Absolute Pressure Sensor Circuit Performance Problem Low/High DTC P1510: ECM (PCM) Back-Up Power Supply Malfunction DTC P2025: Evaporative Emission Fuel Vapor Temperature Sensor Performance DTC P2026, P2027: Evaporative Emission Fuel Vapor Temperature Sensor Circuit Low Voltage/High Voltage DTC P2227, P2228, P2229: Barometric Pressure Circuit Performance/Low/High DTC P2282: Air Leak between Throttle Body and Intake Valves Inspection of ECM (PCM) and its Circuits Fuel Pump Circuit Check Fuel Injector Circuit Check Fuel Pressure Check Idle Speed / Idle Air Control (IAC) Duty Inspection A/C Signal Circuit Check A/C Condenser Fan Motor Relay Control System Check Special Tools and Equipment