audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Air Flow Meter/Sensor > < Valve Clearance|Specifications|Page 2677
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A/C Signal: Testing and Inspection

1.

Connect a voltmeter between terminals 33 and 35 of the injection control unit plug.

2.

With A/C OFF, and ignition ON, 0 volts should be available.

3.

With A/C in AUTO or BI-LEVEL, battery voltage should be available and compressor clutch should become engaged.

4.

If voltages are not correct, repair wiring.

Air Flow Meter/Sensor > < Valve Clearance|Specifications|Page 2677