Engine General Information And Diagnosis
- H25 Engine
- Precautions
- General Description
- Schematic and Routing Diagram
- Diagnostic Information and Procedures
- Engine and Emission Control System Check
- Notes
- Description for Each Step
- Step 1: Customer complaint analysis
- Step 2: DTC / freeze frame data check
- Step 3 and 4: Visual inspection
- Step 5: Trouble symptom confirmation
- Step 6 and 7: DTC / freeze frame data check
- Step 8: Engine basic inspection
- Step 9: DTC troubleshooting
- Step 10: Intermittent problems check
- Step 11: Final confirmation test
- 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 Light or MIL Dims at Ignition Switch ON Leaving Engine OFF but Engine Can Be Starting
- 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 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: H02S (Bank-1 Sensor-1) Circuit Low Voltage
- DTC P0132: H02S (Bank-1 Sensor-1) Circuit High Voltage
- DTC P0133: H02S (Bank-1 Sensor-1) Circuit Slow Response
- DTC P0134: H02S (Bank-1 Sensor-1) No Activity Detected
- DTC P0135: H02S (Bank-1 Sensor-1) Heater Circuit Malfunction
- DTC P0137 / P0138: H02S (Bank-1 Sensor-2) Circuit Low / High Voltage
- DTC P0141: H02S (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 / 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 / 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 (Small Leak) / (Gross Leak)
- 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 P0630: VIN Not Programmed or Incompatible - ECM/PCM
- DTC P1107 / P1108: Manifold Absolute Pressure Sensor Circuit Performance Problem (Low/ High)
- DTC P1510: ECM (PCM) Back-Up Power Supply Malfunction
- DTC P2025: Evaporative Emissions 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 Problem / 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
- A/C Compressor Relay Control System Check
- Engine and Emission Control System Check
- Special Tools and Equipment
- H27 Engine
- Precautions
- General Description
- Schematic and Routing Diagram
- Diagnostic Information and Procedures
- Engine and Emission Control System Check
- Notes
- Description for Each Step
- Step 1. Customer complaint analysis
- Step 2. DTCs / freeze frame data check
- Step 3. Visual inspection
- Step 4. Visual inspection
- Step 5. Trouble symptom confirmation
- Step 6. DTC / freeze frame data recheck
- Step 7. DTC/freeze frame data recheck
- Step 8. Engine basic inspection
- Step 9. DTC troubleshooting
- Step 10. Intermittent problems check
- Step 11. Final confirmation test
- Visual Inspection
- Engine Basic Check
- Malfunction Indicator Lamp (MIL) Check
- DTC Check
- DTC Table
- For A/T System (Only OBD-II Generic Scan Tool Is Displayed on the Following DTC(s) at the Same Time)
- DTC Clearance
- Fail-Safe Table
- Scan Tool Data
- Scan Tool Data Definitions
- Engine Symptom Diagnosis
- MIL Does Not Light or MIL Dims at Ignition Switch ON Leaving Engine OFF (But Engine Can be Starting)
- MIL Remains ON after Engine Starts
- MIL Dose Not Light at Ignition Switch ON and Engine Dose Not Start Through It Is Cranked Up
- DTC P0031 / P0032: HO2S (Bank 1 Sensor-1) Heater Control Circuit Low/ High
- DTC P0037 / P0038: HO2S (Bank 1 Sensor-2) Heater Control Circuit Low / High
- DTC P0051 / P0052: HO2S (Bank 2 Sensor-1) Heater Control Circuit Low / High
- DTC P0057 / P0058: HO2S (Bank 2 Sensor-2) Heater Control Circuit Low / High
- DTC P0101: Mass Air Flow Circuit Performance
- DTC P0102: Mass Air Flow Circuit Low Input
- DTC P0103: Mass Air Flow Circuit High Input
- DTC P0107 / P0108: Manifold Absolute Pressure Circuit Low Input / High Input
- DTC P0111: Intake Air Temperature Sensor Circuit Performance
- DTC P0112: Intake Air Temperature Sensor Circuit Low
- DTC P0113: Intake Air Temperature Sensor Circuit High
- DTC P0116: Engine Coolant Temperature Circuit Performance
- DTC P0117: Engine Coolant Temperature Circuit Low
- DTC P0118: Engine Coolant Temperature Circuit High
- DTC P0121: Throttle Position Sensor Circuit Performance
- DTC P0122: Throttle Position Sensor Circuit Low
- DTC P0123: Throttle Position Sensor Circuit High
- DTC P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control
- DTC P0128: Coolant Thermostat (Coolant Temperature below Thermostat Regulating Temperature)
- DTC P0131 / P0132 / P1131 / P1132: 02 Sensor (Bank 1 Sensor -1) Circuit Low Voltage Shift / High Voltage Shift / Circuit Continuity / Circuit High Voltage
- DTC P0133: 02 Sensor (Bank 1 Sensor-1) Circuit Slow Response
- DTC P0134: 02 Sensor (Bank 1 Sensor-1) No Activity Detected
- DTC P0137: 02 Sensor (Bank 1 Sensor-2) Circuit Low Voltage
- DTC P0138 / P0140: 02 Sensor (Bank 1 Sensor-2) Circuit High Voltage / No Activity Detected
- DTC P0151 / P0152 / P1151 / P1152: 02 Sensor (Bank 2 Sensor-1) Circuit Low Voltage Shift / High Voltage Shift / Circuit Continuity / Circuit High Voltage
- DTC P0153: 02 Sensor (Bank 2 Sensor-1) Circuit Slow Response
- DTC P0154: 02 Sensor (Bank 2 Sensor-1) No Activity Detected
- DTC P0157: 02 Sensor (Bank 2 Sensor-2) Circuit Low Voltage
- DTC P0158 / P0160: 02 Sensor (Bank 2 Sensor-2) Circuit High Voltage / No Activity Detected
- DTC P0171 / P0174: System Too Lean
- DTC P0172 / P0175: System Too Rich
- DTC P0300 / P0301 / P0302 / P0303 / P0304 / P0305 / P0306: Misfire Detected
- DTC P0327 / P0328: Knock Sensor Circuit Low / High
- DTC P0335: Crankshaft Position Sensor Circuit
- DTC P0340: Camshaft Position Sensor Circuit
- DTC P0401 / P0402: Exhaust Gas Recirculation Flow Insufficient Detected / Excessive Detected
- DTC P0403: Exhaust Gas Recirculation Control Circuit
- DTC P0420: Catalyst System Efficiency below Threshold (Bank 1)
- DTC P0430: Catalyst System Efficiency below Threshold (Bank 2)
- DTC P0441: Evaporative Emission System Incorrect Purge Flow
- DTC P0443: Evaporative Emission System Purge Control Valve Circuit
- DTC P0449: Evaporative Emission System Vent Valve / Solenoid Circuit
- DTC P0456: Evaporative Emission System Leak Detected
- DTC P0461: Fuel Level Sensor Circuit Performance
- DTC P0463: Fuel Level Sensor Circuit High
- DTC P0500: Vehicle Speed Sensor
- DTC P0506 / P0507: Idle Air Control System RPM Lower than Expected / Higher than Expected
- DTC P0601 / P0602 / P0607: Internal Control Module Memory Check Sum Error / Control Module Programming Error / Control Module Performance
- DTC P0616: Starter Relay Circuit Low
- DTC P0617: Starter Relay Circuit High
- DTC P0630: VIN Not Programmed or Incompatible-ECM/PCM
- DTC P0660: Intake Manifold Tuning Valve Control Circuit / Open
- DTC P1107 / P1108: Manifold Absolute Pressure Circuit Performance Low / High
- DTC P1420/P1421: Evaporative Emission System Vent Valve Stuck Open/Closed
- DTC P1422: Evaporative Emission System Leak Detect Pump Stuck OFF
- DTC P1424/P1425: Evaporative Emission System Leak Detecting Pump Flow High/Low System Diagram
- DTC P1510: ECM Back-Up Power Circuit Low
- DTC P1601: CAN Communication Error
- DTC P1603: TCM Trouble Code Detected
- DTC P2227: Barometric Pressure Circuit Performance
- DTC P2228/P2229: Barometric Pressure Circuit Low/High
- DTC P2400: Evaporative Emission System Leak Detection Pump Control Circuit / Open
- Inspection of ECM and Its Circuits
- Fuel Pump Circuit Inspection
- Fuel Injector Circuit Inspection
- Fuel Pressure Control System Inspection
- Idle Air Control (IAC) System Inspection
- Idle Speed / Idle Air Control (IAC) Duty Inspection
- A/C Signal Circuit Check
- A/C Condenser Fan Motor Relay Low Speed Control System Check
- A/C Condenser Fan Motor Relay High-Speed Control System Check
- A/C Compressor Relay Control System Check
- Engine and Emission Control System Check