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AC was not blowing super cold and compressor was cycling on/off with very regular frequency (engaged for 3 seconds, off for 3 seconds, repeat). Recharged system assuming low pressure sensor was causing kickouts. AC now ice cold when compressor is running, but still cycles on/off when auto temp is on lowest setting and/or fan set to high cool. Air warms up noticeably when driving and compressor not engaged.
Checked fault codes, found 2-2-1 Pass side damper motor position sensor short to ground, 4-1-1 Blower fan seized or drawing excessive current, and 4-1-7 Pass side interior temp inlet fan seized.
Reset fault codes and they haven't come back. Checked both side inlet temp sensors. Both sensors dirty and dusty, blew out, cleaned both sides and made sure fans spin freely. No more fault codes, but compressor cycling problem still exists.
What else can I check or what else could cause regular cycling of the compressor? The cycling happens in both auto and manual mode and doesn't appear to be tied to any particular driving style/events. What other sensors/electrical items trigger the compressor clutch to turn on/off? My Clymer book has schematics for every electrical system except the A/C / Auto Climate Control!!
Is there a simple way to jump the compressor clutch into the 'on' position for the summer months?
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