Electrical Testing for Audi Air Conditioning
Electrical Testing for Audi Air Conditioning
The adapters from VAG 1598 A test box must not be connected to the A/C Control Head -E87- during the self diagnostic. The electrical testing on Audi vehicles from model year 2002 is described with the VAS 5051 Vehicle Diagnostic, Testing and Information System. The electrical testing can also be carried out using VAG 1526 multi-meter, except for several test steps. – Voltage supply, Ground (GND) connection and illumination for A/C control head -E87-. – Ignition Time Period Signal Off – Ground (GND) connection.
Locate and repair open circuit or contact resistance according to wiring diagram. On vehicles with sun roof solar cells observe wiring diagram for voltage supply of Fresh Air Blower -V2-(voltage is supplied to -V2- via separation relay).
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