Diagnostic Trouble Codes With Test Charts

• OBD System Description
  • Diagnostic Trouble Codes
  • Summary Tables
• Test Group Identification
  • Notes
  • Catalyst Monitoring
    • General description of Catalyst Monitoring
    • Monitoring structure of Catalyst
    • Monitoring Cycle
      • Computation of the efficiency of the catalyst
      • Fault evaluation
      • Check of monitoring conditions
  • Misfire Monitoring
    • General description
      • Measurement Principle
      • Sensor Wheel adaptation
      • Calculation of the engine roughness threshold value
    • Misfire Monitoring Structure
    • Fault Processing
      • Error Window
      • Engine operating point window
      • Misfire detection
        • Emission Increase
        • Catalyst damage:
      • Statistics: Fault Processing
  • Evaporative System Monitoring
    • Evaporative System Leak Measurement
      • General Description of Leak Measurement
      • Diagnosis Frequency and MIL illumination
        • Diagnosis Frequency and MIL illumination: No refueling detected, leak > 1.0 mm
        • Diagnosis Frequency and MIL illumination: After refueling detected; leak > 0.5 mm
        • Diagnosis Frequency and MIL illumination: After refueling detected and no leak:
        • Description of chart
        • Diagnosis Frequency and MIL illumination: After refueling is detected, filler cap left open:
        • Description of chart:
        • Diagnosis Frequency and MIL illumination: After refueling detected, "check filler cap" message ignored:
    • Evaporative Purge System Flow Check
      • Notes
      • Monitoring Structure of Evaporative Purge System Flow Check
      • Monitoring Cycle of Evaporative Purge System Flow Check
        • Step 1 - For rich or lean purge mixture
        • Step 2 - For a stoichiometric purge mixture
  • Secondary Air System Monitoring
    • General Description of Secondary Air System Monitoring
    • Monitoring Structure of Secondary Air System Monitoring
  • Fuel System Monitoring
    • General Description
    • Monitoring Structure
    • Monitoring Conditions
  • Oxygen Sensor Monitoring
    • Monitoring of Upstream Oxygen Sensors
      • General Description of Upstream Oxygen Sensor Monitoring
      • Monitoring Structure of Upstream Oxygen Sensor
      • Monitoring procedure of Upstream Oxygen Sensor
        • Overall period time monitoring of Upstream Oxygen Sensor
        • Switching period monitoring of the Upstream Oxygen Sensor
    • Monitoring Procedure for Downstream Oxygen Sensors
      • Monitoring from rich to lean intake mixture
      • Monitoring from lean to rich intake mixture
    • Oxygen Sensor Heater Monitoring
      • General Description of Oxygen Sensor Heater Monitoring
      • Circuitry for heater controlling and heater current measuring
      • Flow Chart of Oxygen Sensor Heater Monitoring
    • Oxygen Sensor Circuit Monitoring
      • Notes
      • No plausible voltages
      • No plausible course of sensor voltage
  • Outside Temperature Sensor Monitoring
    • General Description of Outside Temperature Monitoring (plausibility check)
    • Flow Chart of the Outside Temperature Sensor Monitoring (plausibility check)
  • Radiator Outlet Sensor Monitoring
    • General Description of Radiator Outlet Sensor Monitoring
    • Flow Chart of Radiator Outlet Sensor Monitoring
  • Engine-off Timer Monitoring
    • General Description of Engine-off Timer Monitoring
      • Notes
      • Part 1: Validation of the time while engine is running
      • Part 2: Validation of the time while engine is off
• Table of ECM Input/Output Signals
• Additional Information
  • Location of the Malfunction Indicator Light for Test Group 4BMXV03.2S54:
  • Location of the Data Link Connector for Test Group 4BMXV03.2S54: