audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Electronic Instrument Cluster - Repair & Troubleshooting|Page 3146 > < Electronic Instrument Cluster - Repair & Troubleshooting|Page 3144
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connect US 1119 between contact 11 and ground

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switch ignition ON

-

measure voltage

^

approx. battery voltage

-

operate starter briefly

^

approx. 0.0 V

Note

Voltage must drop to 0.0 V when operating starter.

If specified value is not obtained, - repair break in wiring according to wiring diagram

Function selector switch, checking

FUNCTION SELECTOR SWITCH

-

connect US 1119 between contact 12 and ground

-

switch ignition ON

-

measure voltage

^

approx. battery voltage

-

operate starter briefly

^

approx. 0.0 V

If specified values are not obtained, - repair break in wiring according to wiring diagram

FUNCTION SELECTOR SWITCH

-

connect US 1119 between contact 6 and ground

-

switch ignition ON

-

measure voltage

^

approx. 4.5-5.0 V

-

If specified value is not obtained, ^ wire to contact 6 has short circuited to ground OR instrument cluster is defective

-

press rocker switch on left side of function selector switch

-

measure voltage

Electronic Instrument Cluster - Repair & Troubleshooting|Page 3146 > < Electronic Instrument Cluster - Repair & Troubleshooting|Page 3144