1991 a/c issue
08-04-2013, 07:07 PM
#1
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1991 a/c issue
I have 91 that the ac is not working. It is charged(checked with pressure gauges), but the clutch will not engage. I checked the low and high switches they both show closed. There is no power at the clutch connector even if i provide a ground. The fuse is good and has power there. I understand there is a relay somewhere but have not been able to find it. Anyone know where it is located? If I provide power to the connector with a jumper the clutch engages. Anything other than the relay to check? Thanks in advance. Tim
08-05-2013, 12:36 AM
#4
Racer
A low px code gets thrown by the ECM and prevents the compressor from cycling. Disconnecting the battery clears the codes stored in the ECM and allows the A/C switch to cycle the compressor.