audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Boost Pressure Output|Page 220 > < Engine Control Module|Flow of Diagnosis|Page 217
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Engine Control Module: Component Tests and General Diagnostics
Boost Pressure Output

Boost pressure indicator, checking

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with control unit connector attached to control unit, connect voltmeter to terminal 17 wire of control unit and ground

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run engine at idle
^

specification: 0.25-2.5V

If voltage reading NOT OK

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replace control unit

If voltage reading OK, but boost pressure NOT indicated on instrument cluster

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check wiring between terminal 17 of control unit and instrument cluster indicator according to current flow diagram

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repair as necessary

Boost Pressure Output|Page 220 > < Engine Control Module|Flow of Diagnosis|Page 217