I have major problem the ac blow hot air unless i by pass the ac relay or
high side pressure switch. Today I took my car to my school put new
receiver/drier on it of course new pressure switch on it too. after that i
vacuum the system and recharged 24oz for this car&and check for leak but
no leak are found. but i can't get the ac clutch kick in with the switch
in side.I continue diagnose the car i have power to the pressure switch.
the magnet clutch coil is continuity that good too. i found out the ecm
that not ground the coil ciruit for ac relay. i got diagram for it but i
can't find out the location of my Thermo Control AMP for this car. the
only thing that left i didn't check. my high side pressure switch is 4
wires i know this is a switch and it requires the late CCRM (Constant
Control Relay Module) where is the location for CCRM in this car? forgot
mention that when i unplug the pressure switch and jumper the ac clutch
kick in and inside my ac work good and cold no noise at all. I when to
salvage try ECM and BCM is not work at all still blow hot air. all the
fuses and relays is good. the wire going to ECM check out good and the
only left didn't check is the from pressure switch to Thermo Control AMP
any one know where is locate ? i can't find the low pressure switch for
this car? please help i'm kind go crazy in electrical. thank you