Cadillac SRX First Generation Forum - 2004 - 2009 Discussion, ac off light is on...cant get it to turn off in Cadillac SRX Forums; So once one of the boxes looses a ground and assume it gets the ground again does it take a ...
A DTC will set when a condition exists for 1 to 5 seconds, depending on what it is. If it doesn't reoccur in 2 or more drive cycles the MIL will go off but the DTC remains in history as well as freeze frame. I think once a connection begins to fail it's not likely to permanently repair itself although it may be OK for extended periods.
ok guys...i will check the connections as mentioned above. But its hot am humid with rain today and the ac stopped working again. it will be cold again this weekend, but i have a feeling when the temp drops the ac will start up again
"The A/C refrigerant pressure sensor prevents the A/C system from operating when an excessively high or low pressure condition exists.
If the ECM detects a failure in the A/C refrigerant pressure sensor or circuit, the GMLAN message sent to the HVAC control module will be invalid. The HVAC control module will then send a request to the radio for display of the SERVICE A/C SYSTEM that will be displayed on the DIC. The HVAC control module will also display A/C OFF on the module as long as the condition is present."
You get to it by removing the front air deflector so it's down near the bottom of the radiator, but you have to discharge the system to replace it. The sensor may/may not be bad. The refrigerant charge may be just borderline so the ambient temp. would cause enough of a pressure change to trigger a fault. Go to an auto AC shop and have them check. Don't let them talk you into a discharge/recharge, just bring the system into spec.
Automobile(s): Cadillac '07 SRX-V6 RWD, '03 Envoy, '95 S10 pu
Gold Canyon & Happy Jack, AZ
Re: ac off light is on...cant get it to turn off
Originally Posted by kycycles
i finally got the code on the scanner p0532 pressure sensor. the parts store does not offer this. I guess the dealer is my only option??? about how much should i expect?
You need to independently verify this is the correct part for you SRX. Per Amazon's fitment it's correct for my 07 (but they've been wrong before) http://www.amazon.com/ACDelco-15-501...ywords=1550153
Also as glake pointed out the system must be discharged to replace this item.