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myowneq · 03-27-2011, 03:27 PM

So here's an update.

I've been messing with the HVAC control panel. I have now lost all of the electrical controls to the panel. None of the four buttons work nor does the temp control. Neither do the illumination lights. And I still can't get the condensor to come on.

With everything hooked up, I can adjust the speed of the blower and the location (windshield, floor, dash). If I disconnect the double vacuum line, it goes straight to hot.

I went to Pull a Part and got a HVAC panel and I've got the exact same symptons on two different panels, one from a 2001 and another from a 2002.

I'm out of ideas unless I can understand what the wires coming out of the harness do.

There are 8 wires. brown (22 gauge), brown (18-20 gauge), white, black / white, gray, orange, blue, green. These are the bottom 8 wires on the Heater A/C Control Assembly.

Assumptions & figurations: (correct me if I'm wrong)

1) Ign brn is likely to be the 18-20 gauge wire. I should be reading 12v here.
2) Org is labeled Bat on the panel and goes to the left panel fuse block. 12v here too?
3) black / white is ground.
4) Other brn & gray are the interior lights and should be carrying 12v also with the interior lights turned up?

So what should I have on the white, green, & blue?

One other question I thought of on my trip to Pull A Part. If it is low on freon, would the computer turn this panel off?

Thanks,
Timothy

03-27-2011, 03:27 PM	#8
myowneq GX Member Join Date: Jan 2004 Location: New Orleans Posts: 145	So here's an update. I've been messing with the HVAC control panel. I have now lost all of the electrical controls to the panel. None of the four buttons work nor does the temp control. Neither do the illumination lights. And I still can't get the condensor to come on. With everything hooked up, I can adjust the speed of the blower and the location (windshield, floor, dash). If I disconnect the double vacuum line, it goes straight to hot. I went to Pull a Part and got a HVAC panel and I've got the exact same symptons on two different panels, one from a 2001 and another from a 2002. I'm out of ideas unless I can understand what the wires coming out of the harness do. There are 8 wires. brown (22 gauge), brown (18-20 gauge), white, black / white, gray, orange, blue, green. These are the bottom 8 wires on the Heater A/C Control Assembly. Assumptions & figurations: (correct me if I'm wrong) 1) Ign brn is likely to be the 18-20 gauge wire. I should be reading 12v here. 2) Org is labeled Bat on the panel and goes to the left panel fuse block. 12v here too? 3) black / white is ground. 4) Other brn & gray are the interior lights and should be carrying 12v also with the interior lights turned up? So what should I have on the white, green, & blue? One other question I thought of on my trip to Pull A Part. If it is low on freon, would the computer turn this panel off? Thanks, Timothy