imjamesw
Joined:
Mar 2002
Bakersfield, California
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I am in desperate need of anything to do with the AC electrical system... any wiring diagrams/schematics, etc. Can someone help?
Thanks
88 Medium Red Turbo Coupe. 172K. Stock. Horrible A4LD. 5k miles since 2006. She will be a part of my family as long as I am.
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imjamesw
Joined:
Mar 2002
Bakersfield, California
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I have the electronic climate control module... I need any info available. Thanks again.
88 Medium Red Turbo Coupe. 172K. Stock. Horrible A4LD. 5k miles since 2006. She will be a part of my family as long as I am.
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Pete D
Joined:
Apr 2001
Northern OH
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Check your email
Pete Dunham
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imjamesw
Joined:
Mar 2002
Bakersfield, California
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Thank you Pete... you've made a very discouraged person a little less discouraged
88 Medium Red Turbo Coupe. 172K. Stock. Horrible A4LD. 5k miles since 2006. She will be a part of my family as long as I am.
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Pete D
Joined:
Apr 2001
Northern OH
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What's the specific problem?
Pete Dunham
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imjamesw
Joined:
Mar 2002
Bakersfield, California
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The clutch is not engaging with the AC on on the panel. There's enough charge in the system for clutch operation. No voltage at the low pressure connector (by the firewall) and no ground either. Found a ground at the high pressure connector. Put voltage to the high press connector and I hear a relay click in the IRCM. Appears as if all fuses are OK, checked them at both sides with a test light. I'm not sure if the panel is acting up, if a switch is out, if the relay is messed up.. just looking for something to troubleshoot the system. I did a lot of crap shooting so far.
??????????????????
88 Medium Red Turbo Coupe. 172K. Stock. Horrible A4LD. 5k miles since 2006. She will be a part of my family as long as I am.
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firstsvo
Joined:
Mar 2004
miller place, ny usa
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I had issues with the IRCM. The oiginal went bad and the first replacement was bad out of the box, both with the same problem... no a/c.
I could get both of them to switch on and off when I pushed/pulled/twisted the connector going into the IRCM. Try pushing it to the left/right and see if the compressor kicks on. Must have been bad connections inside.
White '88 auto mostly stock, Black '88 5 speed nowhere near stock
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teal95
Joined:
Dec 2002
Grass Lake, MI
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1. I've had the pressure switch go mostly bad. It would work sometimes but not consistently.
2. I had the power electronics that drives the compressor go bad. It is an aluminum heat sink piece that goes into the side of the heater box in the dash. I found a Mark VII in the jy that used the same parts and swapped it out. The one I pulled out of my car had some serious corrosion issues.
steve
'83 & '84 GT turbo EEC-Tuner
'85.5 & '86 SVO twEECer
2x '87 & '88 TC QuarterHorse
'93 LX 5.0 notch Moates chips
3x '95 & '96 GT
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imjamesw
Joined:
Mar 2002
Bakersfield, California
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I can't find that heat sink piece... I found something with a white plug connector attached to the inside of the fender.. is that it?
88 Medium Red Turbo Coupe. 172K. Stock. Horrible A4LD. 5k miles since 2006. She will be a part of my family as long as I am.
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DonH
Joined:
Jun 2002
Central Massachusetts, USA
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Called the blower motor speed controller, it's attached to the center of the evaporator case right under the blend door actuator. It controls the blower and supplies power to the A/C pressure switch. Look for a black six wire connector plugged into the case. The heat sink is inside the case so the air blowing through will cool it off.
1987 TC stock except ATR 2.5"
1983 Pontiac Transam T-top 5.7 T56 [email protected] top speed: 176mph
1978 Fairmont 2.3 4-spd Big-top S/W
1946 Willys CJ2A 134.2ci L4 No-top
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