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Home >> Audi >> 1994 >> S4 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Miscellaneous Controls >> A/C Auxiliary Signal Checking >> Notes

A/C Auxiliary Signal Checking: Notes

NOTE: The A/C auxiliary signal boosts the idle speed to approximately 800 RPM when the compressor is switched ON.
NOTE: For location of ECM and harness connection. See COMPONENT LOCATIONS .
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