2.0L - Generic Scan Tool, Engine Code(S): AEG (A4 Platform)

• 20 - Fuel supply
  • Fuel Supply System
    • Fuel Supply System
    • Safety precautions
    • Rules for cleanliness
    • Function and voltage supply, checking
    • Checking fuel pressure
    • Checking residual pressure
    • Checking fuel delivery
  • Evaporative Emissions (EVAP) System
    • Evaporative Emissions (EVAP) System
    • EVAP system, leak detection
    • Evaporative Emission (EVAP) canister system, checking for proper seal
    • Evaporative Emission (EVAP) Canister Purge Regulator Valve N80 , checking
    • Leak Detection Pump (LDP) V144 , checking
  • Electronic engine power control (EPC)
    • Function of "EPC" system
    • Throttle Position (TP) Sensor G69 / Throttle Position (TP) Sensor G88 , checking
    • Closed Throttle Position (CTP) Switch F60 , checking
• 24 - Multiport Fuel Injection (MFI)
  • Motronic fuel injection system, servicing
    • Motronic fuel injection system, servicing
    • Safety precautions
      • Notes
      • Observe the following if test and measuring instruments are required during a test drive:
    • Rules of cleanliness
    • Technical data
  • Components, checking
    • Oxygen Sensor (O2S) Heater Z19 heater circuit, checking
    • Oxygen Sensor (O2S) 1 (behind Three Way Catalytic Converter (TWC)) Heater Z29 , checking
    • Mass Air Flow (MAF) Sensor G70 , checking
      • Notes
      • Test requirements
      • Test procedure
      • Start diagnosis
      • Checking voltage supply
      • Checking Ground (GND)
      • Checking electrical circuit
      • Final procedures
    • Throttle Valve Control Module J338 , checking
    • Positive Crankcase Ventilation (PCV) Heating Element N79 , checking
    • Engine Coolant Temperature (ECT) Sensor G62 , checking
      • Notes
      • Test requirements
      • Test procedure
      • Start diagnosis
      • Checking internal resistance
      • Testing if display is approx. - 40.0 ° C
      • Testing if display approx. 140.0 ° C
      • Checking wiring
      • Final procedures
    • Intake Air Temperature (IAT) Sensor G42 , checking
      • Notes
      • Test requirements
      • Test procedure
      • Start diagnosis
      • Checking internal resistance
      • Testing if display approx. -40 ° C or approx. -46 ° C
      • Testing if display approx. 140 ° C:
      • Checking wiring
      • Final procedures
    • Engine Speed (RPM) Sensor G28 , checking
    • Fuel Injectors N30, N31, N32, N33 , checking
    • Fuel Pump (FP) Relay J17 checking
  • Function tests
    • Heated Oxygen Sensor (HO2S) G39 , checking
    • Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130 , checking
  • Motronic Engine Control Module (ECM) J220
    • Function
    • Voltage supply, checking
    • Motronic Engine Control Module (ECM) J220 , replacing
  • Additional signals (engine), checking
    • Speed Signal, checking
    • CAN-Bus terminal resistance, checking
• 26 - Exhaust system, Emission controls
  • Exhaust system components, removing and installing
    • Exhaust system components, removing and installing
    • Three Way Catalytic Converter (TWC), checking
  • Secondary Air Injection (AIR) System
    • Principle and function
    • Combination Valve for Secondary Air Injection (AIR), checking function and proper seal
    • Secondary Air Injection (AIR) Solenoid Valve -N112- , checking
    • Secondary Air Injection (AIR) Pump Relay -J299- , checking
    • Secondary Air Injection (AIR) Pump Motor -V101- , checking
• 28 - Ignition/Glow plug System
  • Ignition, servicing
    • General notes on ignition system
    • Safety precautions
    • Test Data, Spark Plugs
    • Camshaft Position (CMP) Sensor G40 , checking
    • Knock Sensor (KS) 1 G61 / Knock Sensor (KS) 2 G66 , checking
    • Ignition Coil N152 , checking
• 38 - Automatic Transmission - Gears, Hydraulic Controls
  • Electrical components for 4 Spd. Automatic Transmission 01M, checking
    • Electrical components for 4 Spd. Automatic Transmission 01M, checking
    • Multi-Function Transmission Range (TR) Switch F125 , checking
    • Transmission Vehicle Speed Sensor (VSS) G38 , checking
    • Vehicle Speed Sensor (VSS) G68 , checking
    • Transmission Fluid Temperature Sensor G93 , checking
    • Solenoid Valves in Valve Body , checking
  • Transmission Control Module (TCM) J217
    • Function
    • Transmission Control Module (TCM) J217 , voltage supply, checking
      • Notes
      • Requirements
      • Test procedure
      • Start diagnosis
      • Checking voltage
      • Checking Ground (GND)
      • Final procedures
    • Transmission Control Module (TCM) J217 , replacing
  • Additional signals (Automatic Transmission), checking
    • CAN-Bus terminal resistance, Transmission Control Module (TCM) J217 to Engine Control Module (ECM) J220 , checking
• ST - Generic Scan Tool
  • On Board Diagnostic (OBD)
    • Generic Scan Tool (GST) Manual Contents
    • On Board Diagnostic (OBD) Systems
    • Serial Data Link (MIL) Illumination
    • Controller Area Network (CAN) Data Link
    • Electronic Power Control (EPC) Warning Lamp
  • Diagnostic modes
    • Diagnostic Modes Description
    • Diagnostic Mode 01: Obtain data
    • Diagnostic Mode 02: Obtain operating conditions
    • Mode 03: Interrogating fault memory
    • Interrogating the Fault Memory
    • Diagnostic Mode 04: Reset/delete diagnostic data
    • Diagnostic Mode 05: Check lambda test results
      • Notes
      • Test requirements
      • Work procedure
      • Test-ID 01 ($01): Oxygen Sensor in Front of Catalytic Convertor Monitor Bank 1 - Sensor 1
      • Test-ID 02 ($02): Oxygen Sensor Behind Catalytic Converter Monitor Bank 1- Sensor 2
    • Diagnostic Mode 06: Checking test results of components that are not continuously monitored
      • Notes
      • Test requirements
      • Work procedure
      • Test-ID 01 ($01): Catalytic Conversion (Bank 1)
      • Test-ID 02 ($02): Oxygen Sensor Bank 1- Sensor 1
      • Test-ID 05 ($05): Tank Ventilation System, Tank Leak Test
    • Diagnostic Mode 07: Check test results of components that are continuously monitored
    • Diagnostic Mode 08: Tank leak test
      • Notes
      • Test requirements
      • Function test
    • Diagnostic Mode 09: Vehicle information
  • General Diagnosis
    • Preliminary check
  • Readiness Code
    • Readiness Code Description
  • Diagnostic Trouble Code (DTC) tables
    • SAE P0xxxDTCs
    • SAE P1xxxDTCs