1.8L - Turbo Generic Scan Tool Engine Code(S): Amu, BEA, ATC, AWP

• 01 - On Board Diagnostic (OBD)
  • On Board Diagnostics, general information
    • On Board Diagnostic (OBD), properties
    • On Board Diagnostic (OBD), technical data
      • Notes
      • Control module identification
      • Engine Control Module (ECM) equipment
      • Transmission Control Module (TCM) equipment
      • Selectable diagnostic modes under address word 33 - OBD
    • Diagnostic tester, connecting
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items, e.g.:
      • Requirements
      • Work procedure
    • Test box, connecting for wiring test
    • Test box, connecting to ECM wiring harness
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items, e.g.:
      • Conditions
      • Work procedure
    • Test box, connecting to TCM wiring harness
      • Notes
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items, e.g.:
      • Work procedure
      • Installing
    • Malfunction Indicator Lamp (MIL) in instrument cluster, checking
      • Meaning of Malfunction Indicator Lamp (MIL)
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
  • Diagnostic mode, selecting
    • Recommended special tools and workshop equipment
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items, e.g.:
    • Address word 33 - OBD
      • Function
    • Diagnostic mode 1: Check measuring values
      • Conditions
      • Work procedure
    • Diagnostic mode 2: Check operating conditions
      • Function
      • Work procedure
    • Diagnostic mode 3: Check DTC memory
      • Function
      • SAE Diagnostic Trouble Codes (DTCs)
      • Work procedure
      • Display example:
      • Explanation:
    • Diagnostic mode 4: Reset/erase diagnostic data
      • Function
      • Conditions
      • Work procedure
    • Diagnostic mode 5: Check oxygen sensor test results
      • Notes
      • Function
      • Requirements
      • Work procedure
      • Evaluation of oxygen sensor test results:
      • Evaluation test-ID 01: Bank 1 sensor 2
      • Evaluation test ID 02: Bank 1 sensor 2
      • Evaluation test ID 07: Bank 1 sensor 2
      • Evaluation test ID 08: Bank 1 sensor 2
      • Evaluation test ID 129: Bank 1 sensor 1
      • Evaluation test ID 130: Bank 1 sensor 1
      • Evaluation test ID 131: Bank 1 sensor 1
      • Evaluation test ID 132: Bank 1 sensor 1
    • Diagnostic mode 6: Check test results of components that are not continuously monitored
      • Notes
      • Function
      • Test ID 01: Catalytic converter
        • Test conditions
        • Work procedure
        • Evaluation test-ID 01: Catalytic converter
      • Test ID 03: Secondary Air Injection (AIR) system
        • Test conditions
        • Work procedure
        • Evaluation Test ID 03: Secondary Air Injection (AIR) system
      • Test ID 05: Tank ventilation system
        • Test conditions
        • Work procedure
        • Test ID 05 Tank ventilation system
      • Test ID 09: Coolant thermostat monitoring
        • Test conditions
        • Work procedure
        • Evaluation test ID 09: Coolant thermostat monitoring
    • Diagnostic mode 7: Check test results of components that are continuously monitored
      • Function
      • Conditions
      • Work procedure
    • Diagnostic mode 8: Tank leak test
      • Notes
      • Function
      • Test conditions
      • Function test
    • Diagnostic mode 9: Vehicle information
      • Notes
      • Function
      • Conditions
      • Work procedure
      • Display vehicle information
  • Readiness code
    • Function
    • Readiness code, reading out
      • Notes
      • Requirements
      • Work procedure
      • Evaluation PID 01: System status information (right 8-digit number block:)
    • Readiness code, generating
      • Requirements
      • Safety precautions on road tests
        • Audi TT Coupe: If test and measuring equipment is required during road test, note the following:
        • Audi TT Roadster: If test and measuring equipment is required during road test, note the following:
        • Work procedure
  • Diagnostic Trouble Code (DTC) tables
    • SAE P0xxx DTCs
      • Fuel and air metering and auxiliary emission controls
      • Fuel and air ratio
      • Ignition system
      • Auxiliary Emission Controls
      • Speed and idle regulation
      • Control module and auxiliary outputs
      • Transmission
    • SAE P1xxx-DTCs
      • Fuel and air ratio
      • Auxiliary Emission Controls
      • Speed and idle regulation
      • Control module and auxiliary outputs
    • SAE P2xxx-DTCs
      • Fuel and air metering and auxiliary emission controls
      • Fuel and air ratio
      • Auxiliary Emission Controls
      • Transmission
    • SAE P3xxx-DTCs
      • Fuel and air metering and auxiliary emission controls
    • SAE U0xxx-DTCs
      • Network, electrical
      • Network, communication
      • Network, software
• 20 - Fuel Pump, Fuel Supply, Evaporative Emissions
  • Fuel supply system components, removing and installing
    • Fuel supply system components, removing and installing
    • Safety precautions when working on fuel supply system
    • Rules for cleanliness
    • Fuel tank with attachments, component overview
      • Vehicles with front wheel drive (FWD)
        • Notes
        • Ground (GND) connection installation position
        • Fuel filler screw clip installation location
      • Vehicles with All Wheel Drive
        • Notes
        • Ground (GND) connection installation position
        • Fuel filler screw clip installation location
    • Fuel delivery unit and fuel gauge sensor, component overview
      • Vehicles with front wheel drive (FWD)
      • Vehicles with All Wheel Drive
    • Transfer Fuel Pump (FP) -G6-, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test sequence
        • Notes
        • Vehicles with front wheel drive (FWD)
        • Vehicles with all wheel drive (AWD)
        • Continuation for all vehicles
      • Checking delivery rate
        • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
        • Test sequence
    • Fuel delivery unit, removing and installing
      • Notes
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Removing
        • Notes
        • Vehicles with front wheel drive (FWD)
        • Vehicles with all wheel drive (AWD)
        • Continuation for all vehicles
      • Installing
        • Notes
        • Vehicles with front wheel drive (FWD)
        • Vehicles with all wheel drive (AWD)
        • Continuation for all vehicles
      • Torque specifications
  • Evaporative emissions (EVAP) system
    • Leak diagnostic, function
    • EVAP canister system components, removing and installing
    • Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- and vacuum reservoir, component overview
    • Leak Detection Pump (LDP) -V144-, component overview
    • EVAP canister system, overview
    • EVAP canister system, checking for proper seal
      • Function test
      • Checking for leaks
    • Evaporative Emission (EVAP) Canister Purge Solenoid Valve 1, checking
      • Notes
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
        • Notes
        • Engine codes AMU, ATC
        • Engine codes AWP, BEA
        • Continuation for all vehicles
    • Evaporative Emission (EVAP) Canister Purge Solenoid Valve 2, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
        • Notes
        • Vehicles with front wheel drive (FWD)
        • Vehicles with all wheel drive (AWD)
        • Continuation for all vehicles
    • Leak Detection Pump (LDP), checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
  • Electronic engine power control (EPC), component overview
    • EPC system, function
    • Electronic Power Control (EPC) components, servicing
    • Electronic Power Control (EPC) Warning Lamp in instrument cluster, checking
      • Meaning of EPC warning lamp
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
    • Throttle Position (TP) sensor, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Function
      • Test sequence
      • Voltage supply and wiring to control module, checking
• 21 - Turbocharger, G-Charger
  • Charge air system with turbocharger
    • Charge air system with turbocharger
    • Turbocharger with attachments, removing and installing
    • Assembly overview
      • Part I
      • Part II
    • Charge air cooler components, removing and installing
    • Exhaust turbocharging system, overview plan
  • Charge air pressure system, checking
    • Safety precautions
      • Notes
      • Road test with Audi TT Coupe:
      • Road test with Audi TT Roadster:
    • Rules for cleanliness
    • Boost pressure regulation, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items, e.g.:
      • Test conditions
      • Test sequence
    • Wastegate Bypass Regulator Valve, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items, e.g.:
      • Test conditions
      • Test sequence
      • Wiring connections to Engine Control Module (ECM), checking
    • Vacuum diaphragm for boost pressure regulator valve, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items, e.g.:
      • Test conditions
      • Test sequence
    • Deceleration shut-off valve, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items, e.g.:
      • Test conditions
      • Test sequence
    • Charge Air Pressure Sensor, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items, e.g.:
      • Voltage supply and wiring to control module, checking
      • Signal wire, checking
    • Turbocharger recirculating valve, checking
      • Notes
      • Test sequence
• 24 - Multiport Fuel Injection (MFI)
  • Fuel injection system, servicing
    • Fuel injection, general notes
    • Safety precautions
      • Notes
      • Audi TT Coupe: If test and measuring equipment is required during road test, note the following:
      • Audi TT Roadster: If test and measuring equipment is required during road test, note the following:
      • To reduce the risk of personal injury and/or damage to the fuel injection and ignition system, always observe the following:
    • Rules for cleanliness
      • When working on the fuel supply/injection system, pay careful attention to the following "5 rules" of cleanliness:
    • Technical data
    • Component locations, overview (engine code AMU)
    • Component locations, overview (engine code ATC)
    • Component locations, overview (engine code AWP)
    • Component locations, overview (engine code BEA)
    • Fuel rail with injectors, disassembling and assembling
    • Air filter housing, overview
    • Air filter insert, removing and installing
      • Removing
      • Installing
  • Components, checking
    • Mass Air Flow (MAF) Sensor, checking
      • Notes
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Function test
      • Mass Air Flow (MAF) sensor voltage supply, checking
      • Signal and Ground wires of Mass Air Flow (MAF) Sensor, checking
    • Mass Air Flow (MAF) Sensor -G70-, removing and installing
    • Mass Air Flow (MAF) Sensor -G70- (without housing) probe, removing
      • Removing
      • Installing
    • Mass Air Flow (MAF) Sensor -G70- (with housing), removing
      • Removing
      • Installing
    • Mass Air Flow (MAF) Sensor -G70-, installing
    • Throttle Valve Control Module -J338-, checking
      • Notes
      • Function
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Function test
      • Voltage supply and wiring to control module, checking
    • Engine Coolant Temperature (ECT) Sensor -G62-, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Function test
        • Notes
        • Continuation of test if display shows approx. -40°C:
        • Continuation for all vehicles
        • Continuation of test if display shows approx. 143°C:
      • Checking wiring
        • Notes
        • Continuation for all vehicles
    • Intake Air Temperature (IAT) Sensor -G42-, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Function test
      • Continuation of test if display shows approx. -40°C:
      • Continuation of test if display shows approx. 143°C:
      • Checking wiring
    • Engine Speed (RPM) Sensor -G28-, checking
      • Function
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test sequence
    • Fuel injectors, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Resistance values of fuel injectors, checking
      • Checking voltage supply
      • Actuation and voltage supply, checking
      • Checking injection quantity and proper seal of fuel injectors
      • Test sequence
      • Checking for leaks
      • Injection quantity, checking
      • Engine codes ATC, AWP
      • Engine codes AMU, BEA
    • Fuel pressure regulator and residual pressure, checking
      • Notes
      • Special tools, testers, measuring instruments and auxiliary items
      • Test sequence
    • Intake system, checking for leaks (false air)
      • Checking with engine leak detection spray
        • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
        • Test conditions
        • Test sequence
  • Oxygen sensors, checking
    • Heated Oxygen Sensor (HO2S) and oxygen sensor control before catalytic converter, checking
      • Notes
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Checking primary voltage
        • Engine codes AMU, ATC
        • Engine codes AWP, BEA
        • Continuation for all vehicles
      • Oxygen sensor wires, checking
      • Engine codes AMU, ATC
      • Engine codes AWP, BEA
      • Continuation for all vehicles
    • Heated Oxygen Sensor (HO2S) and oxygen sensor control behind catalytic converter, checking
      • Notes
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Function test
      • Checking primary voltage
      • Oxygen sensor wires, checking
      • Continuation for all vehicles
    • Oxygen sensor heating for oxygen sensor before catalytic converter, checking
      • Notes
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Engine codes AMU, ATC
        • Notes
        • Engine codes AWP, BEA
        • Continuation for all vehicles
      • Voltage supply and wiring, checking
        • Engine codes AMU, ATC
        • Engine codes AWP, BEA
        • Continuation for all vehicles
    • Oxygen sensor heating for sensor behind catalytic converter, checking
      • Notes
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
        • Notes
        • Engine codes AMU, ATC
        • Engine codes AWP, BEA
        • Continuation for all vehicles
      • Voltage supply and wiring, checking
  • Engine control module
    • Function
    • Engine Control Module (ECM), checking voltage supply
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
      • Checking voltage supply terminal 30
      • Checking voltage supply terminal 15
    • Engine Control Module (ECM), replacing
  • Additional signals, checking
    • Speed signal, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
    • Terminal resistance for CAN-Bus, checking
      • Function
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
        • Notes
        • If resistance value is not in specified range:
        • If resistance value is in specified range:
• 26 - Exhaust System, Emission Controls
  • Exhaust system components
    • Exhaust system components
    • Exhaust system components, removing and installing
      • Vehicles with Front Wheel Drive (FWD)
      • Vehicles with All Wheel Drive (AWD)
        • Notes
        • Separating point
        • Suspended mount location (vehicles with front wheel drive)
        • Distance between exhaust pipe and heat shield for steering gear at least 24 mm
    • Three Way Catalytic Converter (TWC), checking
      • Function test
  • Secondary Air Injection (AIR) system
    • Secondary Air Injection (AIR) system
    • Function
    • Secondary Air Injection (AIR) System, overview plan
    • Secondary air injection system, checking for leaks
      • Function test
      • Checking for leaks
    • Secondary Air Injection (AIR) solenoid valve, checking
      • Notes
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
    • Secondary Air Injection (AIR) system motor, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
    • Combi-valve, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
    • Combi-valve, removing and installing
      • Notes
      • Removing
      • Installing
  • Exhaust temperature monitoring
    • Exhaust Gas Temperature (EGT) Sensor 1 G235 , checking
      • Notes
      • Special Tools and Equipment
      • Test sequence
      • Checking voltage supply
      • Checking wire connections
• 28 - Ignition/Glow plug System
  • Ignition system, servicing
    • Ignition system, general notes
    • Safety precautions
      • Notes
      • If test and measuring equipment is required during road test, note the following:
        • Audi TT Coupe:
        • Audi TT Roadster:
    • Technical data, spark plugs
    • Ignition system components, removing and installing
    • Camshaft adjustment, servicing
    • Camshaft Position (CMP) Sensor -G40-, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
    • Ignition coils with power output stage, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
      • Check activation
      • Checking wiring
    • Knock sensors, checking
      • Notes
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Checking resistances and wiring
        • Vehicles with engine code AMU, ATC
        • Vehicles with engine code AWP, BEA
        • Continuation for all vehicles
    • Camshaft Adjustment Valve 1 -N205-, checking
      • Function
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
• 37 - Automatic Transmission - Controls, Housing
  • 6-speed automatic transmission 09G, notes
    • Transmission
    • Torque converter
    • ATF
    • Shift point changes on uphill or downhill stretches
  • Electrical/electronic components and component locations
    • Electrical/electronic components and component locations
      • Notes
      • Data Link Connector (DLC)
      • Shift Lock Solenoid -N110-
      • Valve body
      • Multi-Function Transmission Range (TR) Switch -F125-
      • Tiptronic Switch -F189-
      • Starting Interlock Relay -J207-
      • Transmission Output Speed (RPM) Sensor -G195-
      • Transmission Input Speed (RPM) Sensor -G182-
      • Transmission Range (TR) Display -Y6-
      • Kick Down Switch -F8-
      • Brake Light Switch -F-
    • Transmission Control Module (TCM) -J217-, removing and installing
      • Notes
      • Removing
      • Installing
  • Shift mechanism, servicing
    • Required special tools and equipment
    • Shift mechanism, checking
    • Selector lever cable, checking and adjusting
      • Checking
      • Adjusting
    • Ignition key removal lock, checking function
    • Locking cable, adjusting
      • Notes
      • Adjusting procedure:
• 38 - Automatic Transmission - Gears, Hydraulic Controls, Valve Body
  • Electrical components for regulating transmission, checking
    • Safety precautions
      • Notes
      • Audi TT Coupe: If test and measuring equipment is required during road test, note the following:
      • Audi TT Roadster: If test and measuring equipment is required during road test, note the following:
    • Multi-Function Transmission Range (TR) Switch, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Function test
      • Check wire connections to TCM.
        • Notes
        • Continuation for all vehicles
    • Transmission Input Speed (RPM) Sensor -G182-, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
      • Check wires to TCM
    • Transmission Output Speed (RPM) Sensor -G195-, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
      • Wiring to TCM, checking
    • Transmission Fluid Temperature Sensor -G93-, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
      • Check sensor resistance.
      • Wiring to TCM, checking
    • Solenoid valves in valve body, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
      • Checking resistance of solenoid valves
      • Wiring to TCM, checking
    • Automatic Transmission Hydraulic Pressure Sensor 1 -G193- and Automatic Transmission Hydraulic Pressure Sensor 2 -G194-, checking
      • Recommended Special tools, workshop equipment, testers, measuring instruments and auxiliary items
      • Test conditions
      • Test sequence
      • Wiring to TCM, checking
  • Multi-Function Transmission Range (TR) Switch -F125-
    • Multi-Function Transmission Range (TR) Switch F125 , removing and installing
      • Required special tools and equipment
      • Multi-Function Transmission Range (TR) Switch, removing
      • Multi-Function Transmission Range (TR) Switch, installing
    • Multi-Function Transmission Range (TR) Switch -F125-, adjusting