Note. Using the following diagnostic procedure assumes the presence of a current (hard) DTC or the ability to duplicate the setting of the DTC using described procedures (see OVERALL FUNCTION CHECK), conducting a test drive under conditions stored in freeze frame data or intermittent recreation procedures. See TESTING PROCEDURE under SELF-DIAGNOSTIC SYSTEM in TESTS W/CODES - INTRODUCTION article. If DTC cannot be duplicated, proceed to TESTS W/O CODES article for diagnosis by symptom.
Home/Infiniti/Q45/Infiniti Q45 II (1996-2001)/Repair manual/Testing & Diagnostics/DTC P0400 OR P1402: EGR FUNCTION
Contents
Wiring diagrams Section: Testing & Diagnostics- Engine Controls - Tests W/o Codes - I30 & Q45: Diagnosis
- Engine Controls - Tests W/o Codes - I30 & Q45: Other
- Engine Controls - Self-Diagnostics - Testing - Q45: Overview
- DTC P0100: MASS AIRFLOW (MAF) SENSOR
- Engine Controls - Self-Diagnostics - Testing - Q45: Diagnosis
- DTC P0105: ABSOLUTE PRESSURE (AP) SENSOR
- DTC P0110: INTAKE AIR TEMPERATURE (IAT) SENSOR
- DTC P0115 OR P0125: ENGINE COOLANT TEMPERATURE (ECT) SENSOR
- DTC P0120 OR P1125: THROTTLE POSITION (TP) SENSOR
- DTC P0130 OR P0150: FRONT HEATED OXYGEN SENSORS (HO2S) CIRCUIT
- Engine Controls - Self-Diagnostics - Testing - Q45: Other
- DTC P0131 OR P0151: FRONT HEATED OXYGEN SENSORS (HO2S) LEAN SHIFT
- DTC P0132 OR P0152: FRONT HEATED OXYGEN SENSORS (HO2S) RICH SHIFT
- DTC P0133 OR P0153: FRONT HEATED OXYGEN SENSORS (HO2S) RESPONSE MONITORING
- DTC P0134 OR P0154: FRONT HEATED OXYGEN SENSORS (HO2S) HIGH VOLTAGE
- DTC P0135 OR P0155: FRONT HEATED OXYGEN SENSOR (HO2S) HEATER
- DTC P0137 OR P0157: REAR HEATED O2 SENSOR (HO2S) MINIMUM VOLTAGE MONITORING
- DTC P0138 OR P0158: REAR HEATED OXYGEN SENSOR (HO2S) MAXIMUM VOLTAGE MONITORING
- DTC P0139 OR P0159: REAR HEATED OXYGEN SENSOR (HO2S) RESPONSE MONITORING
- DTC P0140 OR P0160: REAR HEATED OXYGEN SENSOR (HO2S) HEATER
- DTC P0141 OR P0161: REAR HEATED OXYGEN SENSOR (HO2S) HEATER
- DTC P0171 OR P0174: FUEL INJECTION SYSTEM (LEAN)
- DTC P0172 OR P0175: FUEL INJECTION SYSTEM (RICH)
- DTC P0180: TANK FUEL TEMPERATURE (TFT) SENSOR
- DTC P0300-P0308: CYLINDER MISFIRE DETECTED
- DTC P0325 OR P0330: KNOCK SENSOR (KS)
- DTC P0335 OR P1336: CRANKSHAFT POSITION (CKP) SENSOR
- DTC P0340: CAMSHAFT POSITION (CMP) SENSOR
- DTC P0400 OR P1402: EGR FUNCTION
- DTC P0420 OR P0430: 3-WAY CATALYST (TWC) FUNCTION
- DTC P0440 OR P1440: EVAP CANISTER CONTROL SYSTEM LEAK
- DTC P0443: EVAP CANISTER PURGE VOLUME CONTROL VALVE
- DTC P0446: EVAP CANISTER VENT CONTROL VALVE
- DTC P0450: EVAP CONTROL SYSTEM PRESSURE SENSOR
- DTC P0500: VEHICLE SPEED SENSOR (VSS)
- DTC P0505: IDLE AIR CONTROL (IAC)
- DTC P0510: CLOSED THROTTLE POSITION (TP) SWITCH
- DTC P0600 OR P1605: A/T CONTROL
- DTC P0605: PCM-ECCS CONTROL MODULE
- DTC P0705 OR P1706: PARK/NEUTRAL POSITION SWITCH
- DTC P1105: MAP/BARO SWITCH SOLENOID VALVE
- DTC P1110 OR P1135: INTAKE VALVE TIMING CONTROL (IVTC)
- DTC P1120: SECOND THROTTLE POSITION SENSOR (STPS)
- DTC P1125: THROTTLE POSITION SENSOR
- DTC P1140: INTAKE VALVE TIMING CONTROL (IVTC) POSITION SENSOR
- DTC P1145: RIGHT INTAKE VALVE TIMING CONTROL (IVTC) POSITION SENSOR
- DTC P1210: TRACTION CONTROL SYSTEM (TCS) SIGNAL CIRCUIT
- DTC P1220: FUEL PUMP CONTROL MODULE (FPCM)
- DTC P1320: IGNITION SIGNAL
- DTC P1336: CRANKSHAFT POSITION (CKP) SENSOR
- DTC P1400: EGR VALVE & EVAP-CPCS OR EGRC SOLENOID VALVE
- DTC P1401: EGR TEMPERATURE SENSOR
- DTC P1402: EGR FUNCTION
- DTC P1440: EVAP CONTROL
- DTC P1444: EVAP CANISTER PURGE VOLUME CONTROL VALVE
- DTC P1490: EVAP VACUUM CUT VALVE BY-PASS VALVE
- DTC P1491: EVAP VACUUM CUT VALVE BY-PASS VALVE
- DTC P1492: EVAP CANISTER VENT CONTROL VALVE
- DTC P1493: EVAP CANISTER PURGE CONTROL SOLENOID VALVE
- Engine Controls - System/component Tests: Diagnosis
- Engine Controls - System/component Tests: Component Locations
- Engine Controls - System/component Tests: Other
- Engine Controls - Self-Diagnostics - Introduction - Q45: Overview
- Engine Controls - Self-Diagnostics - Introduction - Q45: Diagnosis
- Engine Controls - Self-Diagnostics - Introduction - Q45: Component Locations
- Engine Controls - Self-Diagnostics - Introduction - Q45: Other
- Abbreviations
- Accessory Drive Belts
- Adjustments
- Airbag
- Anti-Lock/traction Control
- Application
- Automatic HVAC System
- Automatic Trans
- Auxiliary Emission Control Systems
- Axle Shafts
- Basic Trouble Shooting
- Brakes
- Cabin Air Filter
- Charging System
- Check Lists
- Communication Devices
- Computer Relearn
- Cooling Fan
- Cruise Control Systems
- Diagnostic Connector Locations
- Differentials & Drive Axles
- Door Locks & Anti-Theft Systems
- Drive Cycles
- Driveline/axles
- DTC Index
- Electrical Component Locations
- Emission Applications
- Engine
- Engine Performance
- Fuses & Circuit Breakers
- Gauges & Instrument Panels
- General Servicing - All Makes
- Heated Glass/defoggers
- Identification
- Manual & Power Steering
- Mechanical
- Mechanical - Hydraulic
- Memory Modules
- Metric Conversions
- Mode 6
- Pin Voltage Charts
- Procedures
- Removal & Installation
- Restraints
- Sensor Range Charts
- Specifications
- Starter
- Steering
- Steering Column
- Steering Column Switches
- Suspension Front
- Suspension Rear
- Testing & Diagnostics
- Theory & Operation
- Traction Control Disable
- Transmission
- Wheel Alignment
- Windows
- Wiper/washer Systems