audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Board Computer - Repair and Troubleshooting|Page 4923 > < Board Computer - Repair and Troubleshooting|Page 4921
Page 2
background image

Connector A - Yellow Band

-

check voltage supply to Board Computer as follows:

Connector B - White Band

-

connect voltmeter between contact 7 of connector A (yellow band) and contact 1 of connector B (white band) on instrument cluster

^

specified value: approx. 12.0V

-

connect voltmeter between contacts 7 and 12 of connector A

-

switch ignition ON

^

specified value: approx. 12.0V

-

switch ignition OFF

If specified values are NOT obtained, - repair break in wiring using current flow diagram

Contacts on Printed Circuit (1-8)

-

connect voltmeter between contact 3 and 7 of printed circuit

^

specified value: 12.0V

-

connect voltmeter between contact 3 and 2 of printed circuit

-

switch ignition ON

^

specified value: approx. 12.0V

Board Computer - Repair and Troubleshooting|Page 4923 > < Board Computer - Repair and Troubleshooting|Page 4921