Self Diagnosis - Theory & Operation (N63 & S63)

• 1.1 Catalyst Monitoring
  • Notes
  • 1.1.1 Diagnostic Overview
  • 1.1.2 Monitoring Function
  • 1.1.3 Validation of the Calculated Sensor Signals (O2_cat_i) of One Period
• 1.2 Heated Catalyst Monitoring
• 1.3 Misfire Monitoring
  • Notes
  • 1.3.1 Monitoring Function
  • 1.3.2 Statistics, Fault Processing
• 1.4 Evaporative Emissions System (EVAP)
  • 1.4.1 EVAP Canister Purge Solenoid Functional Test
    • Notes
    • 1.4.1.1 Monitoring Function
  • 1.4.2 EVAP System Leak Measurement (Module DMTL)
    • Notes
    • 1.4.2.1 Monitoring Function - Leak Detection
    • 1.4.2.2 Diagnosis Frequency and MIL Illumination
  • 1.4.3 EVAP Pump Current (Comprehensive Component, appendant to EVAP)
    • 1.4.3.1 Monitoring Function - Pump Current Diagnosis
• 1.5 Secondary Air System Monitoring
• 1.6 Fuel System Monitoring
  • 1.6.1 Lambda Adaptation Monitoring
    • 1.6.1.1 Monitored Component
    • 1.6.1.2 Result of the Diagnosis
    • 1.6.1.3 Diagnostic Principle
    • 1.6.1.4 Operation Sequence
      • Notes
      • 1.6.1.4.1 Similar conditions function
  • 1.6.2 Cylinder Imbalance Monitoring
    • 1.6.2.1 Monitored Component
    • 1.6.2.2 Result of the Diagnosis
    • 1.6.2.3 Diagnostic Principle
    • 1.6.2.4 Operation Sequence
    • 1.6.2.5 Functional Diagrams
  • 1.6.3 Lambda Adaptation
    • Notes
    • 1.6.3.1 Monitoring Function
    • 1.6.3.2 Similar Conditions Function
  • 1.6.4 Trim Control Plausibility Monitoring
    • Notes
    • 1.6.4.1 Monitoring Function
  • 1.6.5 Diagnosis of Injector Aging
    • Notes
    • 1.6.5.1 Monitoring Function
  • 1.6.6 High Pressure Fuel Control System
    • 1.6.6.1 Monitoring Function - High Pressure System
    • 1.6.6.2 Monitoring Function - Pressure Range Test
  • 1.6.7 Fuel Regulators/Valves/Sensors (Comprehensive Component, appendant to Fuel System)
    • 1.6.7.1 Monitoring Function
  • 1.6.8 Injection Deactivation
    • Notes
    • 1.6.8.1 Monitoring Function
  • 1.6.9 Fuel Level Sensor (FLS) (Comprehensive Component, appendant to Fuel System)
    • 1.6.9.1 Monitoring overview
    • 1.6.9.2 Fuel Level Sensor Electrical Circuit Continuity Test
      • Notes
      • 1.6.9.2.1 Monitoring Function
      • 1.6.9.2.2 FLS Diagnosis Frequency of FLS Circuit Continuity Test
    • 1.6.9.3 Fuel Level Sensor Signal Correlation Test
      • Notes
      • 1.6.9.3.1 Monitoring Function
      • 1.6.9.3.2 FLS Diagnosis Frequency of FLS Correlation Test
• 1.7 Oxygen Sensor Monitoring Linear Upstream/Binary Downstream
  • 1.7.2 Upstream Oxygen Sensor Monitoring (linear) - Slow Response
    • 1.7.2.1 Monitored Component
    • 1.7.2.2 Diagnosis Results
    • 1.7.2.3 Diagnostic Principle
    • 1.7.2.4 Upstream Oxygen Sensor - Short Circuit Monitoring
      • Notes
      • 1.7.2.4.1 Monitoring Function
    • 1.7.2.5 Upstream Oxygen Sensor - Open Circuit Monitoring
      • Notes
      • 1.7.2.5.1 Monitoring Function
      • 1.7.2.5.2 Monitoring Description
    • 1.7.2.6 Upstream Oxygen Sensor - Signal Controller Monitoring
      • Notes
      • 1.7.2.6.1 Monitoring Function
    • 1.7.2.7 Upstream Oxygen Sensor - Signal Activity Test
      • Notes
      • 1.7.2.7.1 Monitoring Function
    • 1.7.2.8 Upstream Oxygen Sensor - Interchanged Sensors Test
      • Notes
      • 1.7.2.8.1 Monitoring Description
    • 1.7.2.9 Upstream Oxygen Sensor - Active Signal Test Shift to Lean/Rich)
      • Notes
      • 1.7.2.9.1 Monitoring Description
    • 1.7.2.10 Upstream Oxygen Sensor - Signal Dynamic Monitoring (Slow Response)
      • Notes
      • 1.7.2.10.1 Monitoring Function
    • 1.7.2.11 Upstream Oxygen Sensor - Signal Monitoring During DFCO
      • Notes
      • 1.7.2.11.1 Monitoring Function
    • 1.7.2.12 Upstream Oxygen Sensor - Heater Monitoring
      • Notes
      • 1.7.2.12.1 Diagnostic Overview
      • 1.7.2.12.2 Monitoring Function
    • 1.7.2.13 Upstream Oxygen Sensor - Heater Circuit Monitoring
      • Notes
      • 1.7.2.13.1 Monitoring Function
  • 1.7.4 Downstream Oxygen Sensor Monitoring (Binary) - Slow Dynamic Lean to Rich
    • 1.7.4.1 Monitored Component
    • 1.7.4.2 Diagnosis Result
    • 1.7.4.3 Diagnostic Principle
    • 1.7.4.4 Downstream Oxygen Sensor - Circuit Monitoring
      • Notes
      • 1.7.4.4.1 Monitoring Function
    • 1.7.4.5 Downstream Oxygen Sensor - Signal Dynamic Test during DFCO
      • Notes
      • 1.7.4.5.1 Monitoring Function
    • 1.7.4.6 Downstream Oxygen Sensor - Dynamic/Transition Time in Sensor Midpoint Range Monitoring
      • Notes
      • 1.7.4.6.1 Monitoring Function
    • 1.7.4.7 Downstream Oxygen Sensor - Signal Activity Test
      • Notes
      • 1.7.4.7.1 Monitoring Function
    • 1.7.4.8 Downstream Oxygen Sensor - Signal Check (Stuck Lean/Rich, Swap)
      • Notes
      • 1.7.4.8.1 Monitoring Function
    • 1.7.4.9 Downstream Oxygen Sensor - Heater Plausibility Monitoring
      • Notes
      • 1.7.4.9.1 Monitoring Function
    • 1.7.4.10 Downstream Oxygen Sensor - Heater Circuit Monitoring
      • Notes
      • 1.7.4.10.1 Monitoring Function
• 1.8 Exhaust Gas Recirculation (EGR) System Monitoring
• 1.9 Positive Crankcase Ventilation (PCV) System
• 1.10 Engine Cooling System Monitoring
  • 1.10.1 Thermostat Monitoring
    • Notes
    • 1.10.1.1 Monitoring Function
  • 1.10.2 Engine Coolant Temperature (ECT) Monitoring
    • 1.10.2.1 Engine Coolant Temperature Electrical Test
      • Notes
      • 1.10.2.1.1 Monitoring Function
    • 1.10.2.2 Engine Coolant Temperature Gradient Diagnosis
      • Notes
      • 1.10.2.2.1 Monitoring Function
    • 1.10.2.3 Engine Coolant Temperature Stuck Diagnosis
      • Notes
      • 1.10.2.3.1 Monitoring Function
    • 1.10.2.4 Engine Coolant Temperature Stuck in Range Diagnosis
      • Notes
      • 1.10.2.4.1 Monitoring Function
  • 1.10.3 Engine Off Timer Monitoring
    • Notes
    • 1.10.3.1 General description
    • 1.10.3.2 Error Symptoms
    • 1.10.3.3 Input parameters for monitoring
• 1.11 Cold Start Emission Reduction Strategy Monitoring
• 1.12 Air Conditioning (A/C) System Component Monitoring
• 1.13 Camshaft and Crankshaft Sensor including Valve Timing
  • 1.13.1 Camshaft Sensor
    • 1.13.1.1 Variable Camshaft Timing (Vanos) (detection of mechanical IVVT error)
      • Notes
      • 1.13.1.1.1 The Control Deviation of the Camshaft Position Controller: ("target + slow response")
    • 1.13.1.2 Camshaft Position Sensor (CMP)
      • Notes
      • 1.13.1.2.1 Description
      • 1.13.1.2.2 Monitoring Function
    • 1.13.1.3 Diagnosis of Signal Plausibility
    • 1.13.1.4 Monitoring Function - Period Length Diagnosis
    • 1.13.1.5 Monitoring Function - Synchronization State Diagnosis
  • 1.13.2 Crankshaft/Camshaft
    • 1.13.2.1 Monitoring Function - Crankshaft Camshaft Synchronization
    • 1.13.2.2 Monitoring Function - Mechanical Reference Position Diagnosis
    • 1.13.2.3 Monitoring Function - Mechanical Chain Jump Diagnosis
  • 1.13.3 Crankshaft Position (CKP) Sensor
    • Notes
    • 1.13.3.1 Diagnostic Overview
    • 1.13.3.2 Monitoring Function - Missing CKP Sensor Signal
    • 1.13.3.3 Monitoring Function - No Plausible Crankshaft Signal
    • 1.13.3.4 Monitoring Function - Wrong Tooth Number
    • 1.13.3.5 Monitoring Function - Synchronization Error
    • 1.13.3.6 Monitoring Function - Tooth Period
• 1.14 Direct Ozone Reduction (DOR) System Monitoring
• 1.15 Comprehensive Component Monitoring OBD II Siemens VDO Function Definition
  • 1.15.1 Strategy
    • Notes
    • 1.15.1.1 Monitoring Strategy for Sensors
    • 1.15.1.2 Monitoring Strategy for Actuators
    • 1.15.1.3 Rationality Test
  • 1.15.2 Ambient Air Temperature (AAT) Monitoring
    • 1.15.2.1 CAN-Based Ambient Air Temperature Signal Diagnosis
      • Notes
      • 1.15.2.1.1 Monitoring Function
    • 1.15.2.2 Ambient Air Temperature (AAT) Signal Plausibility Test
      • Notes
      • 1.15.2.2.1 Monitoring Function
  • 1.15.3 Intake Air Temperature (IAT) Monitoring
    • 1.15.3.1 Intake Air Temperature Sensor Plausibility Diagnosis
      • Notes
      • 1.15.3.1.1 Monitoring Function
    • 1.15.3.2 Intake Air Temperature Sensor Electrical Test
      • Notes
      • 1.15.3.2.1 Monitoring Function
  • 1.15.4 Charge Air Cooler Temperature (CACT) Sensor Monitoring
    • 1.15.4.1 Charge Air Cooler Temperature Plausibility Diagnosis
      • Notes
      • 1.15.4.1.1 Monitoring Function
    • 1.15.4.2 Charge Air Cooler Temperature Gradient Diagnosis
      • Notes
      • 1.15.4.2.1 Monitoring Function
    • 1.15.4.3 Charge Air Cooler Temperature Sensor Electrical Test
      • Notes
      • 1.15.4.3.1 Monitoring Function
  • 1.15.5 Electronic Throttle Control Monitor (ETC)
    • 1.15.5.1 Electronic Throttle Control (ETC) Power Stage Diagnosis (H-bridge)
      • Notes
      • 1.15.5.1.1 Monitoring Function
    • 1.15.5.2 Electronic Throttle Control (ETC) Motor Control Performance
      • Notes
      • 1.15.5.2.1 Monitoring Function
    • 1.15.5.3 Electronic Throttle Control (ETC) Composite Error
    • 1.15.5.4 Electronic Throttle Control (ETC) Adaptation and Start Test
      • 1.15.5.4.1 Monitoring Function - ETC Adaptation Diagnosis
      • 1.15.5.4.2 Monitoring Function - ETC Start Test
      • 1.15.5.4.3 Description Adaptation Function
      • 1.15.5.4.4 Description Start Check Function
    • 1.15.5.5 Throttle Position (TP) Sensor Plausibility Test
      • Notes
      • 1.15.5.5.1 Monitoring Function
    • 1.15.5.6 Throttle Position Sensor Ratio Test
      • Notes
      • 1.15.5.6.1 Monitoring Function
    • 1.15.5.7 Pedal Position Sensor
      • 1.15.5.7.1 Monitoring Function - Supply Voltage Monitoring
      • 1.15.5.7.2 Monitoring Function - Double Error
  • 1.15.6 Idle Speed Control (ISC) Actuator
    • 1.15.6.1 Idle Speed Control Rationality Diagnosis
      • Notes
      • 1.15.6.1.1 Monitoring Function
  • 1.15.7 Mass Air Flow (MAF) and Manifold Absolute Pressure (MAP) Monitoring
    • 1.15.7.1 Mass Air Flow and Manifold Absolute Pressure Plausibility Diagnosis
      • Notes
      • 1.15.7.1.1 Monitoring Function
    • 1.15.7.2 Ambient Pressure, Boost Pressure and Manifold Absolute Pressure
      • Notes
      • 1.15.7.2.1 Monitoring Function
  • 1.15.8 Manifold Absolute Pressure (MAP) Sensor Monitoring
    • 1.15.8.1 Manifold Absolute Pressure Sensor Electrical Test
      • Notes
      • 1.15.8.1.1 Monitoring Function
  • 1.15.9 Mass Air Flow (MAF) Sensor Monitoring
    • 1.15.9.1 Mass Air Flow Sensor Internal Error Diagnosis
      • Notes
      • 1.15.9.1.1 Monitoring Function
    • 1.15.9.2 Temperature Sensor Diagnosis Electrical Test
      • Notes
      • 1.15.9.2.1 Monitoring Function
    • 1.15.9.3 Temperature Sensor Diagnosis Range Test
      • Notes
      • 1.15.9.3.1 Monitoring Function
    • 1.15.9.4 Mass Air Flow Sensor Diagnosis Electrical Test
      • Notes
      • 1.15.9.4.1 Monitoring Function
    • 1.15.9.5 Mass Air Flow Sensor Diagnosis Range Test
      • Notes
      • 1.15.9.5.1 Monitoring Function
  • 1.15.10 Vehicle Speed Signal
    • 1.15.10.1 Vehicle Speed Sensor Signal Plausibility Test
      • Notes
      • 1.15.10.1.1 Monitoring Function
    • 1.15.10.2 Vehicle Speed Sensor Signal Test
      • Notes
      • 1.15.10.2.1 Monitoring Function
  • 1.15.11 Knock Sensor (KS)
    • Notes
    • 1.15.11.1 Monitoring Function
  • 1.15.12 Supercharger (SC) Boost Sensor (Pressure Up Throttle - PUT)
    • 1.15.12.1 Supercharger (SC) Boost Sensor Electrical Test
      • Notes
      • 1.15.12.1.1 Monitoring Function
• 1.17 Location of the Data Link Connector
• 1.18 Drawing and Location of the MIL