Chrysler Repair: 96 Sebring JXI Conv. 2.5L V-6:A/C problem, pressure transducer, clutch control

Question
QUESTION: Hi - thanks in advance for your time!

I have a '96 sebring (JXI Conv. 2.5L V-6) with an A/C problem.

The compressor will not come on by itself.

It has no leaks, it's full of R134a.
The compressor will come on if I supply 12v to the clutch-wire, otherwise it will not turn on.

The indicator light on the control-button lights, otherwise I get nothing.

I tried swapping relays in the driver's-side under-hood panel (behind headlight next to control modules) = wiper for A/C, for example) no effect.

I *DO* know that the blower-motor diode is bad - blower only works on position "4" - and I plan to replace it eventually, but can't see how that could affect the A/C clutch control...

I know the fan-clutch is good, I know the pressure-switch *IN THE COMPRESSOR* is good, I **THINK** the control-panel in the dash is good, but that's about it.  I need to test pretty much everything else...

Thanks again for your time and assistance!

Alan/DD

ANSWER: Hi Alan,
For the compressor clutch to activate you need fuse 17 to supply power to the relay points, and fuse 9 to supply power to the relay coil, both of those in the power box under the hood. The relay is controlled by the pcm on the dark blue/orange at the relay by grounding the rear pin of the relay. Because your resistor block for the blower is blown, you may not get any a/c action except if you have the blower set on high. So you might first want to replace that resistor block. Other than that the pressure transducer may be faulty in not telling the pcm that everything refrigerant-wise is OK.
Roland

---------- FOLLOW-UP ----------

QUESTION: All the fuses are good.

I replaced the thermal fuse in the resistor-block ($1.69 vs. $32) and now have blower on all levels.

Still no help from the A/C...

I'd *GLADLY* replace the pressure transducer, but cannot find one locally - no store I found even lists it in their system.  Some research gave me a list of other vehicles that use the same unit, looking that way today I found *5* stores who said they had one but *NONE* of them really did.

MADDENING!

Is there a way to test the transducer, the Ambient Air Temp (on condenser) and the Evaporator Temp units?

Since it's obvious that my controls are good, my resistor, my clutch/compressor and my "low-refrigerant cutoff" (in compressor) are all (now) good, it would appear TO ME that one of those three would *HAVE* to be the problem.

Are there any troubleshooting procedures I should try?

Thanks again!

Alan

Answer
Hi Alan,
Unfortunately I am not that knowledgeable about ac systems to give advice on the balance of your system. By the way, what is the specific part name/no. of the thermal fuse part of the block and was it easy to find? I'll remember to suggest replacing that if no blower speeds are available. Thanks.
Roland