Audi A4


Audi A4 (AEB) Generic Scan Tool Manual Contents

Audi A4 (AEB) Generic Scan Tool Manual Contents

Generic Scan Tool Manual Contents Audi A4 ”GST” is an acronym for Generic Scan Tool Manual.Included in the contents of this GST manual is a summary table of the vehicle specific OBD II Emission Related Engine and Transmission DTCs. This table contains all necessary Malfunction Criteria, Threshold Values, Secondary Parameters, Enabling Conditions, Monitoring Time Length, Frequency of Checks, and MIL Illumination to accurately monitor and diagnose the Engine Emissions and Transmission and perf..

Audi A4 (AEB) Heated Oxygen Sensor, Checking

Audi A4 (AEB) Heated Oxygen Sensor, Checking

Heated Oxygen Sensor, Checking Audi A4 Note When servicing terminals in harness connector of Heated Oxygen Sensor (HO2S) G39 , use only gold-plated terminals. Special tools and workshop equipment required Multimeter . Wiring diagram. Test requirements Fuse S229 OK. The Motronic Engine Control Module (ECM) J220 fuses OK. Battery voltage at least 12.5 volts. All electrical consumers such as, lights and rear window defroster, switched off. Vehicles with automatic trans..

Audi A4 (AEB) Ignition, Servicing

Audi A4 (AEB) Ignition, Servicing

Ignition, Servicing Audi A4 Note All manufacturers special tools as well as common tools may contain a manufacturer specific part number. These tools may be substituted with an equivalent aftermarket tool or are available for purchase through Audi. Refer to Tool catalog . Manufacturers special tools as well as common tools that contain a manufacturer specific part number may be referenced in the test procedure illustrations showing the tool use or installation. If the manufacturer spe..

Audi A4 (AEB) Intake Air Temperature, Checking

Audi A4 (AEB) Intake Air Temperature, Checking

Intake Air Temperature, Checking Audi A4 Note Use only gold-plated terminals when servicing terminals in the electrical harness connector of the Intake Air Temperature (IAT) Sensor G42 . Special tools and workshop equipment required Multimeter . Wiring diagram. Cool spray (commercially available). Test requirements The Motronic Engine Control Module (ECM) J220 fuses OK. Battery voltage at least 12.5 volts. All electrical consumers such as, lights and rear window defrost..

Audi A4 (AEB) Knock Sensors, Checking

Audi A4 (AEB) Knock Sensors, Checking

Knock Sensors, Checking Audi A4 The following procedure is used to diagnose all Knock Sensors . Special tools and workshop equipment required Multimeter . Wiring diagram. Test requirements The mounting bolt of Knock Sensor (KS) 1 G61 / Knock Sensor (KS) 2 G66 tightened to 20 Nm. The Motronic Engine Control Module (ECM) J220 fuses OK. Battery voltage at least 12.5 volts. All electrical consumers such as, lights and rear window defroster, switched off. Vehicles with aut..

Audi A4 (AEB) Leak Detection Pump, Checking

Audi A4 (AEB) Leak Detection Pump, Checking

Leak Detection Pump, Checking Audi A4 Special tools and workshop equipment required Multimeter . Wiring diagram. Test requirements Fuse S229 OK. The ignition switched off. Note The voltage for the Leak Detection Pump (LDP) -V144- is supplied by the Fuel Pump Relay J17 . Test procedure Perform a preliminary check to verify the customers complaint. Refer to Go to article . Start diagnosis Remove the left rear wheel housing liner. Refer to Body Exterior Rep. Gr. 66 Re..

Audi A4 (AEB) Malfunction Indicator Lamp

Audi A4 (AEB) Malfunction Indicator Lamp

Malfunction Indicator Lamp Audi A4 ”MIL” is an acronym for the Malfunction Indicator Lamp.If the ECM recognizes a malfunction that leads to increased emissions values, it indicates them by lighting the MIL which is located in the instrument cluster.The ECM switches on the MIL after the ignition is switched on. Shortly after the engine is started, The MIL goes out if the ECM does not detect a malfunction that increases the emissions values.If the ECM recognizes a malfunction that leads to inc..

Audi A4 (AEB) Mass Air Flow Sensor, Checking

Audi A4 (AEB) Mass Air Flow Sensor, Checking

Mass Air Flow Sensor, Checking Audi A4 Note Use only gold-plated terminals when servicing terminals in harness connector of Mass Air Flow (MAF) Sensor G70 . Special tools and workshop equipment required Multimeter . Wiring diagram. Scan tool Test requirements Fuse S229 OK. Battery voltage at least 12.5 volts. All electrical consumers such as, lights and rear window defroster, switched off. Vehicles with automatic transmission, shift selector lever into liition “P” or “N”..

Audi A4 (AEB) OBD Systems

Audi A4 (AEB) OBD Systems

OBD Systems Audi A4 OBD II”OBD” is an acronym for the On Board Diagnostic System.California OBD II applies to all gasoline engine vehicles up to 14,000 lbs. Gross Vehicle Weight Rating (GVWR) starting in the 1996 MY and all diesel engine vehicles up to 14,000 lbs. GVWR starting in the 1997 MY.Several states in the Northeastern United States have chosen to adopt the California emission regulations starting in the 1998 MY and are known as "Green States".Green States receive California-certifie..

Audi A4 (AEB) Oxygen Sensor after Catalytic Converter, Checking

Audi A4 (AEB) Oxygen Sensor after Catalytic Converter, Checking

Oxygen Sensor after Catalytic Converter, Checking Audi A4 Note When servicing terminals in harness connector of Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130 , use only gold-plated terminals. Special tools and workshop equipment required Multimeter . Wiring diagram. Test requirements Fuse S229 OK. The Motronic Engine Control Module (ECM) J220 fuses OK. Battery voltage at least 12.5 volts. All electrical consumers such as, lights and rear window ..




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