HVAC success and fail...
Thread Starter
Burning Brakes
Joined: Apr 2009
Posts: 946
Likes: 2
HVAC success and fail...
I swapped out my compressor, accumulator, orifice tube, and all my o-rings finally. Yay!
The only problem is the compressor doesn't kick on when I press the A/C button (manual controller box). Boo!
Some high-fallutin' testing later, I believe my controller box is kaput. I can turn on the compressor with my laptop, and noticed that the fan **** doesn't really provide 5 fan settings...
Now. Where in the hell can I find one of these manual controllers for a 97?
I was thinking about picking up a friends dual zone system (except he already sold the controller), but I'm not sure I want to do all that dash surgery...
The only problem is the compressor doesn't kick on when I press the A/C button (manual controller box). Boo!
Some high-fallutin' testing later, I believe my controller box is kaput. I can turn on the compressor with my laptop, and noticed that the fan **** doesn't really provide 5 fan settings...
Now. Where in the hell can I find one of these manual controllers for a 97?
I was thinking about picking up a friends dual zone system (except he already sold the controller), but I'm not sure I want to do all that dash surgery...
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
ebay would be the obvious first place to try. have you tried pulling it off/apart and made sure that was the problem? could be some wiring somewhere between the box and whatever it connects to as well. i'm not that familiar with it personally but i imagine it runs to the ecu then the ecu controls the ac clutch
you sure there aren't any other problems w the ac system that are preventing it from coming on?
you sure there aren't any other problems w the ac system that are preventing it from coming on?
Thread Starter
Burning Brakes
Joined: Apr 2009
Posts: 946
Likes: 2
When I was first working on the car last summer, there were a million of these manual controllers for sale on ebay. I figured, no big deal, I pick one up when I get to to it... Now... Zippo.
You are correct -- the PCM actually switches the clutch on and off, and thats how I can engage the clutch with my laptop.
There are actually two problems with the controller -- no clutch engagement and the fan selector seems mostly all one speed (very low) with a mild increase in air at setting 5. This fails one of the diagnostic tests in the service manual.
You are correct -- the PCM actually switches the clutch on and off, and thats how I can engage the clutch with my laptop.
There are actually two problems with the controller -- no clutch engagement and the fan selector seems mostly all one speed (very low) with a mild increase in air at setting 5. This fails one of the diagnostic tests in the service manual.
Tech Contributor
Joined: Jan 2007
Posts: 19,472
Likes: 1,171
From: Dyer, IN
When I was first working on the car last summer, there were a million of these manual controllers for sale on ebay. I figured, no big deal, I pick one up when I get to to it... Now... Zippo.
You are correct -- the PCM actually switches the clutch on and off, and thats how I can engage the clutch with my laptop.
There are actually two problems with the controller -- no clutch engagement and the fan selector seems mostly all one speed (very low) with a mild increase in air at setting 5. This fails one of the diagnostic tests in the service manual.
You are correct -- the PCM actually switches the clutch on and off, and thats how I can engage the clutch with my laptop.
There are actually two problems with the controller -- no clutch engagement and the fan selector seems mostly all one speed (very low) with a mild increase in air at setting 5. This fails one of the diagnostic tests in the service manual.
You can also evaluate the input/output of the blower motor control module with a meter to be sure.
