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Engine General Information And Diagnosis Expand All (for easy ctrl-f) Collapse All Precaution General Description Schematic and Routing Diagram Component Location Diagnostic Information and Procedures Engine and Emission Control System Check Malfunction Indicator Lamp (MIL) Check DTC Check DTC Clearance Troubleshooting for Communication Error with Scan Tool Using CAN DTC Table Fail-Safe Table Scan Tool Data Notes Scan Tool Data Definitions Coolant Temp (Engine Coolant Temperature, °C, °F) Intake Air Temp. (°C, °F) ENGINE SPEED (rpm) DESIRED IDLE (DESIRED IDLE SPEED, rpm) MAF (MASS AIR FLOW RATE, g/s, lb/min.) CALC Load (Calculated Load Value, %) Throttle Pos (Absolute Throttle Position, %) BAROMETRIC PRESS (kPa, in.Hg) Fuel Tank Level (%) Battery Voltage (V) Brake SW (On/Off) IMT Valve Actuator (Intake Manifold Tuning Valve, Open/Close) Fuel System B1 (Fuel System Status) O2S Sensor B1 S2 (Heated Oxygen Sensor-2, V) Short Ft B1 (Short Term Fuel Trim, %) Long Ft B1 (Long Term Fuel Trim, %) Total Ft Trim B1 (Total Fuel Trim, %) A/F B1 S1 CURRENT (A/F SENSOR OUTPUT CURRENT, mA) Fuel Cut (On/Off) O2S B1 S2 Act (Heated Oxygen Sensor-2, Active / Inactive) A/F B1 S1 Act (A/F Sensor, Active / Inactive) CANIST PRG Duty (EVAP Canister Purge Flow Duty, %) Ignition Advance (Ignition Timing Advance For No. 1 Cylinder, °) Fuel Pump (On/Off) Starter SW (Starter Switch, On / Off) A/C PRESSURE (A/C REFRIGERANT ABSOLUTE PRESSURE, kPa) A/C Switch (On/Off) A/C Comp Relay (A/C Compressor Relay, On/Off) Blower Fan (On/Off) Electric Load (On/Off) PSP SWITCH (POWER STEERING PUMP PRESSURE SWITCH, ON/OFF) (Non-EPS model) TP Sensor 1 Volt (TP Sensor (Main) Output Voltage, V) TP Sensor 2 Volt (TP Sensor (Sub) Output Voltage, V) App Sensor 1 Volt (App Sensor (Main) Output Voltage, V) App Sensor 2 Volt (App Sensor (Sub) Output Voltage, V) ACCEL Position (Absolute Accelerator Pedal Position, %) Target Throttle POSI (Target Throttle Valve Position, %) IAC Throttle Opening (Idle Air (Speed) Control Throttle Valve Opening, %) Throttle Motor Volt (V) Closed Throttle Pos (Closed Throttle Position, On/Off) Throttle Motor Relay (On / Off) VEHICLE SPEED (km/h, mph) INJ PULSE WIDTH (FUEL INJECTION PULSE WIDTH, msec.) RADIATOR FAN (RADIATOR COOLING FAN CONTROL RELAY, Low/High/OFF) A/C COND Fan (A/C Condenser Cooling Fan Control Relay, On / Off) PNP SIGNAL (TRANSMISSION RANGE SENSOR, P/N or D range) EVAP Vent Valve (EVAP Vent Valve, On / Off) Leak Check Pump (EVAP Leak Detection Pump, On / Off) LEAK CHECK P SENSOR (EVAP LEAK CHECK PRESSURE SENSOR, in.Hg, kPa) Visual Inspection Engine Basic Inspection Engine Symptom Diagnosis MIL Does Not Come ON with Ignition Switch ON and Engine Stop (but Engine Can Be Started) MIL Remains ON after Engine Starts DTC P0030: HO2S Heater Control Circuit (Sensor-1, Bank-1) DTC P0031 / P0032: HO2S Heater Control Circuit Low / High (Sensor-1, Bank-1) DTC P0037 / P0038: HO2S Heater Control Circuit Low / High (Sensor-2, Bank-1) DTC P0101: Mass or Volume Air Flow Circuit Range / Performance DTC P0102 / P0103: Mass or Volume Air Flow Circuit Low / High Input DTC P0111: Intake Air Temperature Sensor 1 Circuit Range / Performance DTC P0112 / P0113: Intake Air Temperature Sensor Circuit Low / High Input DTC P0116: Engine Coolant Temperature Circuit Range / Performance DTC P0117 / P0118: Engine Coolant Temperature Circuit Low / High DTC P0122 / P0123: Throttle / Pedal Position Sensor / Switch "A" Circuit Low / High DTC P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) DTC P0131 / P0132: O2 Sensor Circuit Low Voltage / High Voltage (Sensor-1, Bank-1) DTC P0133: O2 Sensor Circuit Slow Response / Performance (Sensor-1, Bank-1) DTC P0134: O2 Sensor Circuit No Activity Detected (Sensor-1, Bank-1) DTC P0137 / P0138: O2 Sensor Circuit Low Voltage / High Voltage (Sensor-2, Bank-1) (EVAP Leak Check Model) DTC P0137 / P0138: O2 Sensor (HO2S) Circuit Low Voltage / High Voltage (Sensor-2, Bank-1) (Non-EVAP-Leak-Check Model) DTC P0139: O2 Sensor Circuit Slow Response (Sensor-2, Bank-1) DTC P0140: O2 Sensor (HO2S) Circuit No Activity Detected (Sensor- 2, Bank-1) DTC P0171 / P0172: System Too Lean / Too Rich (Sensor-1, Bank-1) DTC P0222 / P0223: Throttle Position Sensor (Sub) Circuit Low / High DTC P0300 / P0301 / P0302 / P0303 / P0304: Random Misfire Detected / Cylinder 1 / Cylinder 2 / Cylinder 3 / Cylinder 4 Misfire Detected DTC P0327 / P0328: Knock Sensor Circuit Low / High DTC P0335: Crankshaft Position Sensor "A" Circuit DTC P0340: Camshaft Position Sensor "A" Circuit DTC P0420: Catalyst System Efficiency Below Threshold (Bank-1) DTC P0441: Evaporative Emission System Incorrect Purge Flow DTC P0443: EVAP Emission System Purge Control Valve Circuit DTC P0449: Evaporative Emission System Vent Valve Circuit DTC P0456: Evaporative Emission System Leak Detected (Very Small Leak) DTC P0461: Fuel Level Sensor "A" Circuit Range / Performance DTC P0462 / P0463: Fuel Level Sensor Circuit Low / High DTC P0480: Fan 1 Control Circuit DTC P0481: Fan 2 Control Circuit (EVAP Leak Check Model) DTC P0481: Fan 2 Control Circuit (Non-EVAP-Leak-Check Model) DTC P0482: Fan 3 Control Circuit DTC P0500: Vehicle Speed Sensor "A" DTC P0504: Brake Switch "A"/"B" Correlation DTC P0506 / P0507: Idle Air Control System RPM Lower than Expected / Higher than Expected DTC P050A: Cold Start Idle Air Control System Performance DTC P0532 / P0533: A/C Refrigerant Pressure Sensor Circuit Low / High DTC P0601 / P0602 / P0607: Internal Control Module Memory Check Sum Error / Control Module Programming Error / Control Module Performance DTC P0616 / P0617: Starter Relay Circuit Low / High DTC P0630: VIN Not Programmed or Incompatible - ECM DTC P0660 / P0662: Intake Manifold Tuning Valve Control Circuit Open / High DTC P1116: Engine Coolant Temperature Circuit Performance at Engine Soaking DTC P1510: ECM Back-Up Power Supply Malfunction DTC P2096 / P2097: Post Catalyst Fuel Trim System Too Lean / Too Rich (Sensor-2, Bank-1) DTC P2101: Throttle Actuator Control Motor Circuit Range / Performance DTC P2102: Throttle Actuator Control Motor Circuit Low DTC P2103: Throttle Actuator Control Motor Circuit High DTC P2111: Throttle Actuator Control System - Stuck Open DTC P2119: Throttle Actuator Control Throttle Body Range / Performance DTC P2122 / P2123: Throttle / Pedal Position Sensor / Switch "D" Circuit Low / High DTC P2127 / P2128: Throttle / Pedal Position Sensor / Switch "E" Circuit Low / High Input DTC P2135: Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correction DTC P2138: Pedal Position Sensor (Main / Sub) Voltage Correction DTC P2195 / P2196: O2 Sensor Signal Stuck Lean / Stuck Rich (Sensor-1, Bank-1) DTC P2227: Barometric Pressure Circuit Range / Performance (EVAP Leak Check Model) DTC P2228 / P2229: Barometric Pressure Circuit Low / High (EVAP Leak Check Model) DTC P2227 / P2228 / P2229: Barometric Pressure Circuit Performance / Low / High (Non-EVAP-Leak-Check Model) DTC P2237: O2 Sensor Positive Current Control Circuit / Open (Sensor-1, Bank-1) DTC P2400: Evaporative Emission System Leak Detection Pump Control Circuit Open DTC P2404: Evaporative Emission System Leak Detection Pump Sense Circuit Range / Performance DTC P2A01: O2 Sensor Circuit Range / Performance (Sensor-2, Bank-1) DTC U0073: Control Module Communication Bus Off DTC U0101: Lost Communication with TCM DTC U0121: Lost Communication with ABS / ESP® Control Module DTC U0140: Lost Communication with Body Control Module Troubleshooting for CAN-DTC Inspection of ECM and Its Circuits ECM Power and Ground Circuit Check Fuel Injector Circuit Check Fuel Pump and Its Circuit Check Fuel Pressure Check A/C Condenser Cooling Fan Control System Inspection A/C System Circuits Check Electric Load Signal Circuit Check Radiator Cooling Fan Low Speed Control System Check Radiator Cooling Fan High Speed Control System Check Repair Instructions Special Tools and Equipment