RAM 2500 Van V6-239 3.9L Magnum (1995)
Compressor HVAC: Testing and Inspection
-
Circuit A21 splices to the coil sides of the Automatic Shut Down (ASD) relay and fuel pump relay
-
Circuit Z1 provides ground the A/C-Heater select switch for defrost or A/C selections. The grounding point for circuit Z1 is at the instrument
panel, above the headlamp switch.