Test Requirements Audi A8 D3

1. Fuse for engine control module OK See SYSTEM WIRING DIAGRAM .
2. Battery voltage at least 11 V
3. Generator OK

Scheme 9

Scheme 10

Scheme 11

1. Connect vehicle diagnostic, testing and information system VAS5051 or VAG1551 scan tool and select engine electronics control module by entering address word "01". See «VEHICLE DIAGNOSTIC, TESTING AND INFORMATION SYSTEM VAS5051 OR VAG1551, CONNECTING AND SELECTING FUNCTIONS»(ref-216437-S40962647232006020800000) . Engine must be at idle. Indicated on display
2. Press buttons -0- and -8- to select function "Read Measuring Value Block" and confirm entry with -Q-button. Indicated on display
3. Press buttons -0-, -0- and -4- to select "Display Group 004" and confirm entry with -Q- button. Indicated on display
4. Check display readout for battery voltage in display field 2. DISPLAY GROUP 004: BATTERY VOLTAGE WITH ENGINE IDLING Display fields 1 2 3 4 Display Group 004: Battery voltage with engine idling Display xxxx RPM xx.xxx V xxx.x °C xxx.x °C Indicates Engine speed (RPM) Battery voltage Coolant temperature Intake air temperature Working range min.: 550 RPM max.: 6600 RPM min.: 0.000 V max.: 16.500 V Specified value xxxx RPM 12.000 to 14.500 V 80.0 to 105.0 °C Between ambient temperature and 90 °C Note If specification is not obtained. See «EVALUATION DISPLAY GROUP 4»(ref-216439-S15014484302006020800000) , Reading display field 2