Help Air Con failure

[coolbawn viper]

I have a 1995 RT/10 in the UK. It has only covered 6000 miles and now when I switch to air con the compressor does not engage.I suspect when I had an alarm fitted a fusible link may have been blown. Can anybody help a poor "limey" and give me the possible causes and how to remedy them.

 

[HP]

Could be low on freon, - compressor clutch won't engage if the freon is too low.

 

[Mike Brunton]

Check your codes - there is a code for the pressure switch which may help isolate the problem

 

[Viblur]

Could be battery based - PCM needs 12v or will set trouble code..

 

[coolbawn viper]

Thanks for the replies.Can anyone tell me were the fuse or fusible link protecting the air con is on a 1995 RT/10 because it is not in the footwell fusebox on the passenger side.I thought I would try this first and if that was ok I would then bypass the pressure switch to see if the pressure has dropped.

 

[HP]

It's off the + battery jumper post - it branches off the main heavy gauge red
wire - it is 12g gray wire - I think there are a few gray wires - but only
one that is 12gauge - the other gray wire is 16 or 18 gauge(smaller)
They will be bundled with an overwrap of tape.