A8 Sedan V8-3.7L (AEW) (1997): Powertrain Management

Also for this vehicle: A8 Quattro Sedan V8-4.2L (ABZ) (1998), A8 Quattro Sedan V8-4.2L (AKB) (2002), A8 Quattro Sedan V8-4.2L (AUX) (2001), A8 Quattro Sedan V8-4.2L (BFM) (2005), A8 Quattro Sedan V8-4.2L (BGK) (2006), A8 Quattro Sedan V8-4.2L (BVJ) (2008).

Diagnostics Maintenance Engine Transmission Brakes Electrical Steering & suspension Heating & A/C Body & interior

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01Relays and Modules Relays and Modules: Sections
02Sensors and Switches Sensors and Switches: Sections
03Maintenance Maintenance: Sections
04Engine, Cooling and Exhaust Engine, Cooling and Exhaust: Sections
05Powertrain Management Powertrain Management: Sections
- Relays and Modules - Powertrain Management20 pages
  - Relays and Modules - Computers and Control Systems8 pages
    Engine Control Module › Component Information › Locations2
    ECM Power Supply Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2 3 4 5
    Overvoltage Protection Relay › Component Information › Locations
  - Relays and Modules - Fuel Delivery and Air Induction12 pages
    Fuel Pump Relay › Component Information › Locations2 3 4 5 6 7
    ECM Power Supply Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2 3 4 5
- Sensors and Switches - Powertrain Management107 pages
  - Sensors and Switches - Computers and Control Systems72 pages
    Accelerator Pedal Position Sensor › Component Information › Adjustments2 3 4 5
    Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information › Specifications2 3 4 5 6
    Camshaft Position Sensor › Component Information › Specifications2 3 4 5
    Coolant Temperature Sensor/Switch (For Computer) › Component Information6 pages
    Specifications2
    Testing and Inspection › Engine Coolant Temperature (ECT) Sensor -G2- Signal, Checking2 3 4
    Engine Speed Sensor › Component Information5 pages
    Specifications2
    Testing and Inspection › Engine Speed (RPM) Sensor, Checking2 3
    Intake Air Temperature Sensor › Component Information › Specifications2 3 4 5
    Knock Sensor › Component Information › Locations › Knock Sensor (KS) 1 -G61-2
    Heated Oxygen Sensor <--> [Oxygen Sensor] › Component Information9 pages
    Technical Service Bulletins › Oxygen Sensor - Verifying Connections After Repairs
    Locations8 pages
    Bank 1, Sensor 1 Oxygen Sensor › Oxygen Sensor (O2S) Heater-Z19-2
    Bank 1, Sensor 2 Oxygen Sensor › Heater For Lambda Probe 1 -Z29-2
    Bank 2, Sensor 1 Oxygen Sensor › Oxygen Sensor (O2S) 2 Heater -Z28-2
    Bank 2, Sensor 2 Oxygen Sensor › Heater For Lambda Probe 2 -Z30-2
    Closed Throttle Position Switch <--> [Throttle Full Close Switch] › Component Information › Specifications2 3 4 5
    Throttle Position Sensor › Component Information6 pages
    Specifications
    Locations › Throttle Position (TP) Sensor -G69-2 3 4 5
    Throttle Position Switch › Component Information › Locations2 3 4
    Multi-Function Transmission Range Switch <--> [Transmission Position Switch/Sensor, A/T] › Component Information7 pages
    Specifications
    Locations › Multi-Function Transmission Range (TR) Switch2 3
    Service and Repair › Disconnecting From Harness2 3
    Vehicle Speed Sensor › Component Information7 pages
    Locations2 3 4
    Service and Repair › Sensor Assembly2 3
  - Sensors and Switches - Fuel Delivery and Air Induction26 pages
    Accelerator Pedal Position Sensor › Component Information › Adjustments2 3 4 5
    Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information › Specifications2 3 4 5 6
    Closed Throttle Position Switch <--> [Throttle Full Close Switch] › Component Information › Specifications2 3 4 5
    Throttle Position Sensor › Component Information6 pages
    Specifications
    Locations › Throttle Position (TP) Sensor -G69-2 3 4 5
    Throttle Position Switch › Component Information › Locations2 3 4
  - Sensors and Switches - Ignition System9 pages
    Camshaft Position Sensor › Component Information › Specifications2 3 4 5
    Ignition Switch › Ignition Switch Lock Cylinder › Component Information › Technical Service Bulletins › Sidewinder Key and Lock - Replacement2
    Knock Sensor › Component Information › Locations › Knock Sensor (KS) 1 -G61-2
- Tune-up and Engine Performance Checks18 pages
- Computers and Control Systems204 pages
  - A/C Compressor Signal <--> [A/C Signal] › Component Information › Testing and Inspection2
  - Accelerator Pedal Position Sensor › Component Information › Adjustments2 3 4 5
  - Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information › Specifications2 3 4 5 6
  - Intake Air Temperature Sensor › Component Information › Specifications2 3 4 5
  - Air Control Valve For Injectors <--> [Auxiliary Air Valve (Idle Speed)] › Component Information5 pages
    Specifications
    Testing and Inspection › Air Control Valve For Fuel Injectors, Checking2 3 4
  - Camshaft Position Sensor › Component Information › Specifications2 3 4 5
  - Coolant Temperature Sensor/Switch (For Computer) › Component Information6 pages
    Specifications2
    Testing and Inspection › Engine Coolant Temperature (ECT) Sensor -G2- Signal, Checking2 3 4
  - Data Link Connector › Component Information5 pages
    Technical Service Bulletins › Data Link Connector - Location
    Locations › 5 Speed Automatic 01L AWD2 3 4
  - Engine Control Module › Component Information › Locations2
  - Engine Speed Sensor › Component Information5 pages
    Specifications2
    Testing and Inspection › Engine Speed (RPM) Sensor, Checking2 3
  - Fuel Level Signal › Component Information › Testing and Inspection
  - Idle Air Control Valve <--> [Idle Speed/Throttle Actuator - Electronic] › Component Information8 pages
    Specifications › Electrical Specifications2
    Testing and Inspection › Idle Air Control (IAC) Valve, Checking2 3 4 5 6
  - Idle Up Control Valve › Component Information › Locations
  - Information Bus › Component Information16 pages
    Testing and Inspection › Component Tests and General Diagnostics › CAN-bus data exchange between Motronic ECM & ABS control module2 3 4
    Service and Repair › Adaptation For Information Data-Bus2 3 4 5 6 7 8 9 10 11 12
  - Knock Sensor › Component Information › Locations › Knock Sensor (KS) 1 -G61-2
  - ECM Power Supply Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2 3 4 5
  - Malfunction Indicator Lamp › Component Information6 pages
    Description and Operation › Emission Control2
    Testing and Inspection › Malfunction Indicator Lamp (MIL) Functional, Checking2 3 4
  - Overvoltage Protection Relay › Component Information › Locations
  - Heated Oxygen Sensor <--> [Oxygen Sensor] › Component Information9 pages
    Technical Service Bulletins › Oxygen Sensor - Verifying Connections After Repairs
    Locations8 pages
    Bank 1, Sensor 1 Oxygen Sensor › Oxygen Sensor (O2S) Heater-Z19-2
    Bank 1, Sensor 2 Oxygen Sensor › Heater For Lambda Probe 1 -Z29-2
    Bank 2, Sensor 1 Oxygen Sensor › Oxygen Sensor (O2S) 2 Heater -Z28-2
    Bank 2, Sensor 2 Oxygen Sensor › Heater For Lambda Probe 2 -Z30-2
  - Relays and Modules - Computers and Control Systems8 pages
    Engine Control Module › Component Information › Locations2
    ECM Power Supply Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2 3 4 5
    Overvoltage Protection Relay › Component Information › Locations
  - Sensors and Switches - Computers and Control Systems72 pages
    Accelerator Pedal Position Sensor › Component Information › Adjustments2 3 4 5
    Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information › Specifications2 3 4 5 6
    Camshaft Position Sensor › Component Information › Specifications2 3 4 5
    Coolant Temperature Sensor/Switch (For Computer) › Component Information6 pages
    Specifications2
    Testing and Inspection › Engine Coolant Temperature (ECT) Sensor -G2- Signal, Checking2 3 4
    Engine Speed Sensor › Component Information5 pages
    Specifications2
    Testing and Inspection › Engine Speed (RPM) Sensor, Checking2 3
    Intake Air Temperature Sensor › Component Information › Specifications2 3 4 5
    Knock Sensor › Component Information › Locations › Knock Sensor (KS) 1 -G61-2
    Heated Oxygen Sensor <--> [Oxygen Sensor] › Component Information9 pages
    Technical Service Bulletins › Oxygen Sensor - Verifying Connections After Repairs
    Locations8 pages
    Bank 1, Sensor 1 Oxygen Sensor › Oxygen Sensor (O2S) Heater-Z19-2
    Bank 1, Sensor 2 Oxygen Sensor › Heater For Lambda Probe 1 -Z29-2
    Bank 2, Sensor 1 Oxygen Sensor › Oxygen Sensor (O2S) 2 Heater -Z28-2
    Bank 2, Sensor 2 Oxygen Sensor › Heater For Lambda Probe 2 -Z30-2
    Closed Throttle Position Switch <--> [Throttle Full Close Switch] › Component Information › Specifications2 3 4 5
    Throttle Position Sensor › Component Information6 pages
    Specifications
    Locations › Throttle Position (TP) Sensor -G69-2 3 4 5
    Throttle Position Switch › Component Information › Locations2 3 4
    Multi-Function Transmission Range Switch <--> [Transmission Position Switch/Sensor, A/T] › Component Information7 pages
    Specifications
    Locations › Multi-Function Transmission Range (TR) Switch2 3
    Service and Repair › Disconnecting From Harness2 3
    Vehicle Speed Sensor › Component Information7 pages
    Locations2 3 4
    Service and Repair › Sensor Assembly2 3
  - Closed Throttle Position Switch <--> [Throttle Full Close Switch] › Component Information › Specifications2 3 4 5
  - Throttle Position Sensor › Component Information6 pages
    Specifications
    Locations › Throttle Position (TP) Sensor -G69-2 3 4 5
  - Throttle Position Switch › Component Information › Locations2 3 4
  - Multi-Function Transmission Range Switch <--> [Transmission Position Switch/Sensor, A/T] › Component Information7 pages
    Specifications
    Locations › Multi-Function Transmission Range (TR) Switch2 3
    Service and Repair › Disconnecting From Harness2 3
  - Vehicle Speed Sensor › Component Information7 pages
    Locations2 3 4
    Service and Repair › Sensor Assembly2 3
- Emission Control Systems19 pages
  - Catalytic Converter › Component Information › Locations2 3 4 5 6
  - Evaporative Emission Control System <--> [Evaporative Emissions System]13 pages
    EVAP Canister Purge Regulator Valve <--> [Canister Purge Control Valve] › Component Information › Testing and Inspection2
    Canister Purge Regulator Valve <--> [Canister Purge Solenoid] › Component Information › Specifications2 3 4
    Evaporative Emission Control Canister › Component Information › Locations2
    Fuel Expansion Tank <--> [Fuel Overflow Reservoir] › Component Information › Specifications2
    Leak Detection Pump, Evaporative System › Component Information › Locations2 3
- Fuel Delivery and Air Induction164 pages
  - Fuel Pressure › System Information › Specifications › Pressure2
  - Fuel Pressure Release › System Information › Service and Repair
  - Idle Speed › System Information › Specifications2 3 4
  - Air/Fuel Mixture › System Information › System Diagnosis2
  - Accelerator Pedal › Component Information › Adjustments
  - Accelerator Pedal Position Sensor › Component Information › Adjustments2 3 4 5
  - Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information › Specifications2 3 4 5 6
  - Air Shrouded Injector Solenoid Valve › Component Information › Locations
  - Air Control Valve For Injectors <--> [Auxiliary Air Valve (Idle Speed)] › Component Information5 pages
    Specifications
    Testing and Inspection › Air Control Valve For Fuel Injectors, Checking2 3 4
  - Fuel › Component Information › Specifications
  - Fuel Filter › Fuel Pressure Release › System Information › Service and Repair
  - Fuel Injector › Component Information12 pages
    Specifications › Electrical Specifications2 3 4
    Locations › Component Locations2 3
    Testing and Inspection › Fuel Injection Volume, Leakage and Spray Pattern, Checking2 3 4 5
  - Fuel Injector Cooling Fan › Component Information › Locations
  - Fuel Pressure Check Valve › Component Information › Testing and Inspection2 3
  - Fuel Pressure Regulator › Component Information › Specifications2 3
  - Fuel Pump9 pages
    Fuel Pressure › System Information › Specifications › Pressure2
    Fuel Pump Relay › Component Information › Locations2 3 4 5 6 7
  - Fuel Rail › Component Information › Specifications2 3 4 5
  - Fuel Reservoir › Component Information › Service and Repair
  - Fuel Supply Line › Component Information › Specifications2
  - Fuel Tank17 pages
    Fuel Filler Neck › Component Information › Locations2 3 4 5 6
    Fuel Level Sensor <--> [Fuel Gauge Sender] › Component Information11 pages
    Locations › Sender For Fuel Gauge -G-2
    Service and Repair › Fuel Level Sensors, Removing and Installing2 3 4 5 6 7 8 9
  - Fuel Tank Unit › Component Information › Tools and Equipment
  - Idle Air Control Valve <--> [Idle Speed/Throttle Actuator - Electronic] › Component Information8 pages
    Specifications › Electrical Specifications2
    Testing and Inspection › Idle Air Control (IAC) Valve, Checking2 3 4 5 6
  - Idle Up Control Valve › Component Information › Locations
  - ECM Power Supply Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2 3 4 5
  - Relays and Modules - Fuel Delivery and Air Induction12 pages
    Fuel Pump Relay › Component Information › Locations2 3 4 5 6 7
    ECM Power Supply Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2 3 4 5
  - Sensors and Switches - Fuel Delivery and Air Induction26 pages
    Accelerator Pedal Position Sensor › Component Information › Adjustments2 3 4 5
    Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information › Specifications2 3 4 5 6
    Closed Throttle Position Switch <--> [Throttle Full Close Switch] › Component Information › Specifications2 3 4 5
    Throttle Position Sensor › Component Information6 pages
    Specifications
    Locations › Throttle Position (TP) Sensor -G69-2 3 4 5
    Throttle Position Switch › Component Information › Locations2 3 4
  - Throttle Body › Component Information › Specifications
  - Accelerator Pedal Cable <--> [Throttle Cable/Linkage] › Component Information › Adjustments2
  - Closed Throttle Position Switch <--> [Throttle Full Close Switch] › Component Information › Specifications2 3 4 5
  - Throttle Position Sensor › Component Information6 pages
    Specifications
    Locations › Throttle Position (TP) Sensor -G69-2 3 4 5
  - Throttle Position Switch › Component Information › Locations2 3 4
  - Variable Induction System › Intake Manifold Change-Over Valve <--> [Variable Induction Control Valve] › Component Information11 pages
    Specifications › Electrical Specifications2
    Locations › Component Locations, Overview2 3 4 5
    Testing and Inspection › Intake Manifold Tuning (IMT) Valve Electrical Testing2 3 4
- Ignition System44 pages
- Transmission Control Systems43 pages
  - Actuators and Solenoids - Transmission and Drivetrain › Actuators and Solenoids - A/T › Shift Interlock Solenoid › Component Information › Locations
  - Lamps and Indicators - Transmission and Drivetrain › Lamps and Indicators - A/T › Malfunction Indicator Lamp - A/T › Component Information › Description and Operation
  - Relays and Modules - Transmission and Drivetrain › Relays and Modules - A/T11 pages
    Control Module, A/T › Component Information8 pages
    Locations › Component Locations › Transmission Control Module2 3 4
    Service and Repair › Checking Control Unit Coding2 3 4
    Shift Interlock Relay › Component Information › Locations2 3
  - Sensors and Switches - Transmission and Drivetrain › Sensors and Switches - A/T30 pages
    Downshift Switch, A/T › Component Information › Locations › Kick Down Switch -F8-2 3 4 5 6 7 8 9 10
    Lateral Acceleration Sensor, A/T › Component Information › Service and Repair2
    Multi-Function Transmission Range Switch <--> [Transmission Position Switch/Sensor, A/T] › Component Information7 pages
    Specifications
    Locations › Multi-Function Transmission Range (TR) Switch2 3
    Service and Repair › Disconnecting From Harness2 3
    Transmission Speed Sensor, A/T › Component Information9 pages
    Specifications
    Locations › Sender For Transmission Output RPM2 3
    Service and Repair › Speedometer Vehicle Speed Sensor (VSS) -G22- › Sensor, Removing and Installing2 3 4 5
    Transmission Temperature Sensor/Switch, A/T › Component Information › Diagrams2
06Transmission and Drivetrain Transmission and Drivetrain: Sections
07Brakes and Traction Control Brakes and Traction Control: Sections
08Starting and Charging Starting and Charging: Sections
09Power and Ground Distribution Power and Ground Distribution: Sections
10Steering and Suspension Steering and Suspension: Sections
11Heating and Air Conditioning Heating and Air Conditioning: Sections
12Restraint Systems Restraint Systems: Sections
13Accessories and Optional Equipment Accessories and Optional Equipment: Sections
14Body and Frame Body and Frame: Sections
15Cruise Control Cruise Control: Sections
16Instrument Panel, Gauges and Warning Indicators Instrument Panel, Gauges and Warning Indicators: Sections
17Lighting and Horns Lighting and Horns: Sections
18Windows and Glass Windows and Glass: Sections
19Wiper and Washer Systems Wiper and Washer Systems: Sections