Heating and Air Conditioning for Audi A6 Sedan 1998-2004, Audi A6 Avant 1999-2004, Audi allroad quattro 2001-2004, Audi S6 Avant 2002-2004, Audi RS6 2003-2004. VAS 5051 Vehicle diagnostic, Test Instruments and Information system, with measuring leads VAS 5051/7, DSO measuring cable VAS 5051/8, Current pick-up clamp 50 A VAS 5051/9 (for vehicles from model year 2002). 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 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). Electrical Wiring Diagrams, Troubleshooting & Component Locations, If the A/C Control Head -E87- detects the malfunction “Potentiometer short circuit to Ground (GND)” or “Open/short circuit to B+”, check all the potentiometer (one in each of the 5 positioning motors) and the wiring.
Tags : electrical wiring diagrams, audi allroad quattro, 2004 audi a6, allroad quattro, audi rs6, audi s6, audi a6 avant, audi a6, heating and air conditioning, component locations, solar cells, e87, electrical testing, voltage supply, c control
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