Service Hints

A4 A/C DUAL PRESSURE SW
1-4 : Open with the refrigerant pressure at less than approx. 216 kPa (2.2 kgf/cm2, 31 psi) or more than approx. 3138 kPa (32 kgf/cm2, 455 psi)

A13 (A) A/C CONTROL ASSEMBLY
+B-GROUND : Always approx. 12 Volts
ACC-GROUND : Approx. 12 Volts with ignition SW at ACC or ON position
AIF-GROUND : Approx. 12 Volts with FRESH SW ON
AIR-GROUND : Approx. 12 Volts with RECIRC SW ON
GND-GROUND : Always continuity