The HVAC module should see the input, if so the A/C clutch should be engaged. Moving on, push the button on the AC panel or the AC controls. This is quick and easy to do for any mechanic. You may want to double check for any odd sounds because it could be a more serious issue or an exaggeration.
From here, the technician would go out there for pinpoint testing. Pay close attention, was there a clicking or clunking sound? For this particular case, the A/C Clutch is in the ON position. The A/C clutch is generally pretty easy, just find the bi-directional control then command the A/C clutch on and listen. This is the positive side, the ground already exists as soon as power is here so we’re going to have that A/C clutch engaged. Nothing on a size not like voltage of sitting here waiting for a ground to occur. Only when the relay is energized would power be available here, and often it’s already has a path to the ground. Now coming down from the A/C clutch leading to the clutch motor, the power grounds to the other side. What if there was no actuation of the clutch at all? Then a technician has to start with fuses and the control side to validate that its working correctly. The Module and control will be your PCM (Power-train Control Module), It is another effective way to control the PCM with the module. Lower on the graph, there’s a control side and in the case of a diesel it’s called the module.
If it’s a gas it will separate into SRTs or Except SRTs. The application changes depending if its diesel or gas. From the two fuses, one is controlling the coil in the relay ( using a 10 amp fuse) that feeds from the relay. Looking at the graph the compressor clutch has a unique relay, it has a compressor control relay that operates in a variety of ways depending upon the application. Compressor Clutch Control Circuit From Bob Pattengale
0 kommentar(er)
