Hot Summer
Thread Starter
Heel & Toe
Joined: Jan 2011
Posts: 22
Likes: 1
Hot Summer
The A/C on my 86 didn't work again this summer. It is an electronic control unite. I am getting a "01 Feedback Potentiometer open" code when I go to diagnostic mode. I think that it controls the temperature door. The fan never comes on but the compressor will cycle on and off. Can anyone advise to what an "Feedback Potentiometer open" is?
Thanks
Thanks
Oil Producer
Joined: Apr 2014
Posts: 9,363
Likes: 2,734
The A/C on my 86 didn't work again this summer. It is an electronic control unite. I am getting a "01 Feedback Potentiometer open" code when I go to diagnostic mode. I think that it controls the temperature door. The fan never comes on but the compressor will cycle on and off. Can anyone advise to what an "Feedback Potentiometer open" is?
Thanks
Thanks
http://www.batee.com/corvette/acrepa...electrical.pdf
yes, the door. follow the diagnostic on there.
i found this by googling your issue.
http://www.corvetteforum.guru/module...=20142&forum=1
Intermediate
Joined: Sep 2012
Posts: 26
Likes: 1
The electronic fan speed control module has burned, this happens when the blower motor starts drawing too many amps to work due to wear , bushing drag etc. replace the blower motor and speed control and this should fix your problem unless it has burned the wires and switch also which is a possibility but I honestly have only seen it once in my 33 years of working on cars and the only electronic unit I've seen wipe out the whole control system was the early 80's caddies there ac control system was crap
Thread Starter
Heel & Toe
Joined: Jan 2011
Posts: 22
Likes: 1
Hot Summer
http://www.batee.com/corvette/acrepa...electrical.pdf
yes, the door. follow the diagnostic on there.
i found this by googling your issue.
http://www.corvetteforum.guru/module...=20142&forum=1
yes, the door. follow the diagnostic on there.
i found this by googling your issue.
http://www.corvetteforum.guru/module...=20142&forum=1
Thread Starter
Heel & Toe
Joined: Jan 2011
Posts: 22
Likes: 1
Hot Summer
The electronic fan speed control module has burned, this happens when the blower motor starts drawing too many amps to work due to wear , bushing drag etc. replace the blower motor and speed control and this should fix your problem unless it has burned the wires and switch also which is a possibility but I honestly have only seen it once in my 33 years of working on cars and the only electronic unit I've seen wipe out the whole control system was the early 80's caddies there ac control system was crap
Melting Slicks
Joined: Jan 2014
Posts: 2,183
Likes: 381
From: Lunenburg MA
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
The A/C on my 86 didn't work again this summer. It is an electronic control unite. I am getting a "01 Feedback Potentiometer open" code when I go to diagnostic mode. I think that it controls the temperature door. The fan never comes on but the compressor will cycle on and off. Can anyone advise to what an "Feedback Potentiometer open" is?
Thanks
Thanks
https://www.corvetteforum.com/forums...schematic.html
