Service Hints

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