Section 35 (1.9L - TDI And TDI Pd Generic Scan Tool, Engine Code(S): ALH, BEW (A4 Platform))

• 20 Fuel Supply
  • Accelerator pedal
    • Accelerator linkage, servicing
    • Throttle Position (TP) sensor, checking
      • Notes
      • Requirement
      • Function
      • Test sequence
      • Checking voltage supply and wiring to control module
• 21 Turbocharger, G-Charger
  • Charge air system with turbocharger
    • Charge air system with turbocharger
    • Turbocharger with attachments, removing and installing
    • Assembly overview (vehicles with engine code ALH)
      • Notes
      • New version of oil return line and support
    • Assembly overview (vehicles with engine code BEW)
    • Charge air cooler components (vehicles with engine code ALH), removing and installing
    • Charge air cooler components (vehicles with engine code BEW), removing and installing
    • Turbocharger line connections (vehicles with engine code ALH)
    • Turbocharger line connections (vehicles with engine code BEW)
    • Rules of cleanliness
    • Safety precautions
  • Boost pressure system, checking
    • Wastegate bypass regulator valve, checking
• 23 Diesel Fuel Injection
  • Diesel-Direct Fuel Injection System, servicing
    • General notes for Diesel-Direct Fuel Injection System
    • Component Locations, overview (vehicles with engine code ALH)
    • Component Locations, overview (vehicles with engine code BEW)
    • Injection pump, servicing
      • Notes
      • Versions of securing bolts for injection pump sprocket
    • Pump-Injector unit, servicing
    • Intake manifold flap, servicing
    • Intake manifold change-over, servicing
    • Injectors, removing and installing
    • Injectors, checking
    • Pump-Injector Unit, removing and installing
      • Notes
      • Removing
      • Installing
    • Pump-Injector Unit, checking
      • Notes
      • Test requirements
      • Test sequence
      • Check wires to control module
    • Safety precautions
    • Rules of cleanliness
  • Checking components
    • Sender for fuel gauge, checking
      • Notes
      • Test requirements
      • Test sequence
    • Manifold Absolute Pressure (MAP) sensor and Barometric Pressure (BARO) sensor, checking
      • Notes
      • Requirements
      • Function test
      • Checking wiring
    • Engine Coolant Temperature (ECT) sensor, checking
      • Notes
      • Test requirement
      • Function test
      • Checking wiring
    • Fuel Temperature Sensor, checking
      • Notes
      • Test requirement
      • Test sequence
        • Notes
        • Vehicles with engine code ALH
        • Vehicles with engine code BEW
      • Check wires to control module
    • Modulating Piston Displacement Sensor and quantity adjuster, checking
      • Notes
      • Test requirement
      • Test sequence
        • Modulating Piston Displacement Sensor -G149-, checking
        • Checking Quantity Adjuster -N146-
    • Needle lift sensor, checking
      • Notes
      • Test requirement
      • Test sequence
    • Cold Start Injector, checking
      • Notes
      • Test requirement
      • Test sequence
    • Mass Air Flow (MAF) sensor, checking
      • Notes
      • Test requirement
      • Function test
      • Voltage supply for Mass Air Flow (MAF) sensor, checking
      • Checking signal and Ground wires of Mass Air Flow (MAF) Sensor
    • Change-over valve for intake manifold flap, checking
      • Notes
      • Test requirements
      • Checking function
      • Test sequence
    • Oxygen sensor heating, checking
    • Intake Air Temperature (IAT) sensor, checking
      • Notes
      • Test requirements
      • Function test
      • Checking sensor
      • Checking resistance at sensor
    • Charge air pressure sensor, checking
      • Notes
      • Test requirements
      • Function test
    • Exhaust Gas Recirculation (EGR) Cooler Switch-over Valve, checking
      • Notes
      • Test requirements
      • Test sequence
    • Motor for intake flap, checking
      • Notes
      • Test requirements
      • Checking voltage supply
  • Function tests
    • Oxygen sensor and oxygen sensor control, checking
      • Notes
      • Test requirements
      • Checking primary voltage
      • Checking oxygen sensor wires
  • Control module for Diesel-Direct Fuel Injection System
    • Voltage supply for Diesel-Direct Fuel Injection System, checking
      • Notes
      • Test requirements
      • Test sequence
    • Control module for Diesel-Direct Fuel Injection System, replacing
  • Additional signals, checking
    • Engine speed signal, checking
    • Terminal resistance for CAN-bus, checking
      • Notes
      • Test requirements
      • Test sequence
        • Vehicles with 80-pin control module and manual transmission
        • Vehicles with 80-pin control module and autom. transmission
        • Continuation at 115 to 135 Ω
      • Checking CAN-Bus wires
• 26 Exhaust system, Emission controls
  • Exhaust system components, removing and installing
    • Exhaust system components, removing and installing
    • Front exhaust pipe and catalytic converter with attachments (vehicles with engine code ALH > 04.99)
    • Front exhaust pipe and catalytic converter with attachments (vehicles with engine code ALH 05.99>)
    • Front exhaust pipe and catalytic converter with attachments (vehicles with engine code BEW)
    • Mufflers with mounts
      • Notes
      • Installation position of double clamp
      • Installation position of muffler suspension
      • Separation point at exhaust pipe
      • Installing muffler free of tension
  • Exhaust Gas Recirculation (EGR) system
    • Exhaust Gas Recirculation (EGR) system
    • Function
    • Exhaust Gas Recirculation (EGR) components (vehicles with engine code ALH), removing and installing
    • Exhaust Gas Recirculation (EGR) components (vehicles with engine code BEW), removing and installing
    • Connection diagram for vacuum hoses (vehicles with engine code ALH)
    • Connection diagram for vacuum hoses (vehicles with engine code BEW)
    • Basic setting of EGR Vacuum Regulator Solenoid Valve (vehicles with engine code BEW)
    • EGR Vacuum Regulator Solenoid Valve, checking (vehicles with engine code ALH)
    • EGR Vacuum Regulator Solenoid Valve, checking
      • Notes
      • Test requirements
      • Vehicles with engine code ALH
        • Notes
        • Check wires to control module
      • Vehicles with engine code BEW
        • Notes
        • Check wires to control module
    • Potentiometer for EGR, checking (vehicles with engine code BEW)
      • Notes
      • Requirements
      • Checking voltage supply
      • Check wires to control module
• 28 Ignition/Glow plug system
  • Glow plug system, checking
    • Glow plug system, checking
      • Only vehicles with engine code BEW and vehicles with engine code ALH, model year >2001
        • Notes
        • Requirements
        • Test sequence
      • Vehicles with engine code ALH, model year 2002 >
        • Notes
        • Requirements
        • Test sequence
    • Glow plugs, checking
• 38 Automatic Transmission - Gears, Hydraulic controls
  • Electrical components for regulating transmission, checking
    • Safety precautions
    • Multi-Function Transmission Range (TR) Switch, replacing
      • Notes
      • Requirements
      • Vehicles with 01M transmission
      • Vehicles with 09A transmission
    • Multi-Function Transmission Range (TR) Switch, checking
      • Notes
      • Test requirements
      • Function test
      • Checking wires to Transmission Control Module (TCM)
    • Transmission Vehicle Speed Sensor (VSS), checking (vehicles with 01M transmission)
      • Notes
      • Requirements
      • Test sequence
      • Checking wires to Transmission Control Module (TCM)
    • Sensor for transmission RPM, checking (vehicles with 09A transmission)
      • Notes
      • Requirements
      • Test sequence
      • Checking wires to Transmission Control Module (TCM)
      • Check sensor resistance.
    • Vehicle Speed Sensor (VSS), checking (vehicles with 01M transmission)
    • Vehicle Speed Sensor (VSS), checking
      • Notes
      • Requirements
      • Vehicles with 01M transmission
        • Test sequence
        • Check sensor resistance.
        • Checking wires to Transmission Control Module (TCM)
      • Vehicles with 09A transmission
        • Notes
        • Test sequence
        • Checking wires to Transmission Control Module (TCM)
        • Check sensor resistance
    • Intermediate Shaft Speed Sensor, checking (vehicles with 09A transmission)
      • Notes
      • Requirements
      • Test sequence
      • Checking wires to Transmission Control Module (TCM)
      • Check sensor resistance.
    • Transmission Fluid Temperature Sensor, checking
      • Notes
      • Requirements
      • Vehicles with 01M transmission
        • Test sequence
        • Check sensor resistance.
        • Checking wires to Transmission Control Module (TCM)
      • Vehicles with 09A transmission
        • Notes
        • Test sequence
        • Checking wires to Transmission Control Module (TCM)
        • Check sensor resistance
    • Solenoid valves in valve body, checking
      • Notes
      • Requirements
      • Vehicles with 01M transmission
        • Test sequence
        • Checking resistance of solenoid valves
        • Checking wires to Transmission Control Module (TCM)
      • Vehicles with 09A transmission
        • Test sequence
        • Checking Ground (GND) refeed of valve body
        • Checking resistance of solenoid valves
        • Checking wires to Transmission Control Module (TCM)
  • Transmission Control Module (TCM)
    • Function
    • Transmission Control Module (TCM), replacing
• ST Generic Scan Tool
  • General information for On Board Diagnostic (OBD)
    • Characteristics of On Board Diagnostic (OBD)
    • On Board Diagnostic (OBD), technical data
      • Notes
      • Control module identification
      • Equipment of control module for Diesel-Direct fuel injection system
      • Equipment of Transmission Control Module (TCM)
      • Selectable diagnostic modes under address word 33 - OBD
    • Diagnostic tester, connecting
    • Test box, connecting for wiring test
      • Notes
      • Requirement
      • Work sequence for control module for Diesel-Direct Fuel Injection System
      • Work procedure for Transmission Control Module (TCM)
    • Malfunction Indicator Lamp (MIL) in instrument cluster
  • Diagnostic mode, selecting
    • Diagnostic mode, selecting
    • Address word 33 - On-Board Diagnostic (OBD)
    • Diagnostic mode 1: Check measured values
    • Diagnostic mode 2: Check operating conditions
    • Diagnostic mode 3: Check DTC Memory
    • Diagnostic mode 4: Reset/erase diagnostic data