Engine Controls - Self-Diagnostics - G20

• Introduction
• Self-Diagnostic System
  • On-Board Diagnostics
  • Freeze-Frame Data
  • Testing Procedure
  • Retrieving Diagnostic Trouble Codes
  • Clearing Diagnostic Trouble Codes
    • Notes
    • Using CONSULT-II
    • Using Generic Scan Tool
  • Fail-Safe Modes
    • Notes
    • DTC P0100: MAF Sensor
    • DTC P0115: ECT Sensor
    • DTC P0120: TP Sensor
    • DTC P0403: EGR Volume Control Valve
    • ECM (DTCs Not Accessible)
  • System Readiness Test
    • Description
    • Checking SRT Code Status
    • Setting SRT Codes
  • Engine Control Module Location
• Scan Tool Usage
  • Consult-II
    • Entering Diagnostic Test Modes
    • Work Support Mode
    • Self-Diagnostic Results Mode
    • Data Monitor Mode
    • Data Monitor (SPEC) Mode
    • Active Test Mode
  • Generic Scan Tool
    • Notes
    • Mode 1: Readiness Test
    • Mode 2: Freeze Frame Data
    • Mode 3: Diagnostic Trouble Codes (DTCs)
    • Mode 4: Clearing Codes
    • Mode 6: On-Board Tests
    • Mode 7: On-Board Tests
    • Mode 8: EVAP System Testing
    • Mode 9: Calibration ID
• Programming
  • INFINITI Vehicle Immobilizer System
  • Idle Air Volume Learning
    • Notes
    • Pre-Conditioning
    • With CONSULT-II
    • Without CONSULT-II
• Summary
• Diagnostic Trouble Code Definitions
• Diagnostic Tests
  • DTC P0100: Mass Airflow Sensor
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test "A"
    • DTC Confirmation Test "B" & "E"
    • DTC Confirmation Test "C"
    • DTC Confirmation Test "D" (Using CONSULT-II)
    • DTC Confirmation Test "D" (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0105: Absolute Pressure (AP) Sensor
    • Notes
    • Description
    • Possible Cause
    • DTC Confirmation Test
    • Diagnostic Procedure
  • DTC P0110: Intake Air Temperature Sensor
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test "A"
    • DTC Confirmation Test "B"
    • Diagnostic Procedure
  • DTC P0115 Or P0125: Engine Coolant Temperature Sensor
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (DTC P0115)
    • DTC Confirmation Test (DTC P0125)
    • Diagnostic Procedure
  • DTC P0120: Throttle Position Sensor
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test "A"
    • DTC Confirmation Test "B"
    • DTC Confirmation Test "C" (Using CONSULT-II Scan Tool)
    • DTC Confirmation Test "C" (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0130: Heated Oxygen Sensor 1 (Front) Circuit
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0131 Or P0132: Front Heated Oxygen Sensor
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0133: Front Heated Oxygen Sensor (Response Monitoring)
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0134: Front Heated Oxygen Sensor (High Voltage)
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0135: Front Heated Oxygen Sensor Heater
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0137: Rear Heated Oxygen Sensor (Min. Voltage Monitoring)
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0138: Rear Heated Oxygen Sensor (Max. Voltage Monitoring)
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0139: Rear Heated Oxygen Sensor (Response Monitoring)
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0140: Rear Heated Oxygen Sensor (High Voltage)
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0141: Rear Heated Oxygen Sensor (Ho2S) Heater
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0171 Or P0172: Fuel Injection System Function
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0180: Fuel Tank Temperature Sensor
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test
    • Procedure
  • DTC P0217: Coolant OVERTEMPERATURE Enrichment Protection Or DTC P1217: Engine Overheat
    • Notes
    • Description
    • Possible Causes (DTC P0217)
    • Possible Causes (DTC P1217)
    • DTC P0217 Confirmation Test (Using CONSULT-II)
    • DTC P0217 Confirmation Test (Using Generic Scan Tool)
    • DTC P1217 Confirmation Test (Using CONSULT-II)
    • DTC P1217 Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure (A/T Models)
    • Diagnostic Procedure (M/T Models)
    • Procedure "A" (A/T Models)
    • Procedure "B" (A/T Models)
    • Procedure "A" (M/T Models)
    • Procedure "B" (M/T Models)
  • DTC P0300-P0304: Cylinder Or Multiple Cylinder Misfire
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test
    • Diagnostic Procedure
  • DTC P0325: Knock Sensor
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test
    • Diagnostic Procedure
  • DTC P0335 Or P1336: Crankshaft Position Sensor (OBD)
    • Notes
    • Description
    • Possible Causes (DTC P0335)
    • Possible Causes (DTC P1336)
    • DTC Confirmation Test (DTC P0335)
    • DTC Confirmation Test (DTC P1336)
    • Diagnostic Procedure
  • DTC P0340: Camshaft Position (CMP) Sensor
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test "A"
    • DTC Confirmation Test "B" & "C"
    • Diagnostic Procedure
  • DTC P0400: EGR Function (Close)
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0403: EGR Volume Control Valve
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test
    • Diagnostic Procedure
  • DTC P0420: 3-Way Catalyst Function
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0440, P0455 Or P1440: EVAP Control System
    • Notes
    • Description
    • Possible Causes (DTC P0440 & P1440)
    • Possible Causes (DTC P0455)
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure (DTC P0440 & P1440)
    • Diagnostic Procedure (DTC P0455)
  • DTC P0443: EVAP Canister Purge Volume Control Valve
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test
    • Diagnostic Procedure
  • DTC P0446: EVAP Canister Vent Control Valve
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test
    • Diagnostic Procedure
  • DTC P0450: EVAP Control System Pressure Sensor
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0460: Fuel Level Sensor Function (Slosh)
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test
    • Diagnostic Procedure
  • DTC P0461: Fuel Level Sensor Function
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0464: Fuel Level Sensor Circuit
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test
    • Diagnostic Procedure
  • DTC P0500: Vehicle Speed Sensor
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0505: Idle Air Control Valve-Auxiliary Air Control Valve
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test "A"
    • DTC Confirmation Test "B"
    • Diagnostic Procedure
  • DTC P0510: Closed Throttle Position Switch
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P0600: A/T Control
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • Diagnostic Procedure
  • DTC P0605: ECM
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test
    • Diagnostic Procedure
  • DTC P1126: Thermostat Function
    • Notes
    • Possible Causes
    • DTC Confirmation Test
    • Diagnostic Procedure
  • DTC P1148: Closed Loop Control
    • Notes
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P1217: Engine Overheat
  • DTC P1336: Crankshaft Position (CKP) Sensor
  • DTC P1401: EGR Temperature Sensor
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test "A"
    • DTC Confirmation Test "B" (Using CONSULT-II)
    • DTC Confirmation Test "B" (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P1402: EGR Function
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P1440: EVAP Control System
  • DTC P1444: EVAP Canister Purge Volume Control Valve
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P1446: EVAP Canister Vent Control Valve (EVAP-CVCV)
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test
    • Diagnostic Procedure
  • DTC P1447: EVAP Control System Purge Flow Monitoring
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P1448: EVAP Canister Vent Control Valve
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P1464: Fuel Level Sensor Circuit (Ground Signal)
    • Notes
    • Description
    • Possible Cause
    • DTC Confirmation Test
    • Diagnostic Procedure
  • DTC P1490: Vacuum Cut Valve By-Pass Valve (Circuit)
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test
    • Diagnostic Procedure
  • DTC P1491: Vacuum Cut Valve By-Pass Valve
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Diagnostic Procedure
  • DTC P1605: A/T Diagnosis Communication Line
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test
    • Diagnostic Procedure
  • DTC P1706: Park/Neutral Position Switch
    • Notes
    • Description
    • Possible Causes
    • DTC Confirmation Test (Using CONSULT-II)
    • DTC Confirmation Test (Using Generic Scan Tool)
    • Procedure (A/T)
    • Procedure (M/T)