Audi A3 1997 Manual page 94

Audi A3 1997 ➤
Heating, Air Conditioner - Edition 06.2000
- Switch ignition off.
- Remove operating and display unit -E87 => Page
- Pull the connector "F" off the operating and display unit -E87.
- -> Connect multimeter between contacts 1 and 2 to measure voltage.
- Switch the ignition on.
- Specified value: approx. battery voltage
- Switch ignition off.
- Fit the connector "F" to the -E87.
- -> Route lead -A- to connector "F" through V.A.G 1715's current probe.
Note:
All the connectors on the -E87 must be inserted
- Select the function "Current measurement via current probe" on V.A.G 1715.
- Start the engine.
- Switch on heated rear window at the -E87 (telltale in button lights).
- Specified value: display changes from approx. 0 A to less than 25 A
- Wait for approx. 10 minutes
- Specified value: The display changes from less than 25 A to approx. 0 A (telltale in button goes out)
Notes:
◆ The current probe may be influenced by stray current which could cause the display to show a low current
reading when the rear window heating is switched off.
◆ If the ambient temperature is below 0 °C, the rear window heating remains activated until ignition is switched
off (can be deactivated manually at any time). If, during the journey, the temperature rises above 0 °C, the
rear window heating is deactivated after the operating period stored in -E87 (approx. 10 minutes) has
elapsed.
◆ If the ambient temperature is above 0 °C, the rear window heating is automatically deactivated by -E87 after
the operating period stored within it (approx. 10 minutes) has elapsed.
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01 - Self-diagnosis, Electrical check
174 .
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with respect to the correctness of information in this document. Copyright by AUDI AG.