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im trying to fix this thing. im in hvac data and looking at ac denial reason it comes up as ambient temperature. the ambient air temp on the radio display shows 16 degrees so i put a 10,000 ohm resistor in place but didnt change anything. so is there a reset or something?? they have a ambient air quality sensor which is under the cowl panel but im not sure what it does.
Ok i think it might be worth while to do a resistance check or load test it with a test light or a resistance dial and adjusting it a couple times to see if it changes
There is a manual reset procedure for it as well I think its press mode, defrost, rear defrost at same time for about 10 seconds
Last edit: 5 years 4 months ago by Hardtopdr2. Reason: Edit
Incorrect service information resistance chart spec ordered new ambient air sensor check resistance with old one way different put it in still no change apparently you have to drive over 35mph for 5 minutes to get it to update now it all works
Cheryl wrote: Incorrect service information resistance chart spec ordered new ambient air sensor check resistance with old one way different put it in still no change apparently you have to drive over 35mph for 5 minutes to get it to update now it all works
What a joke!
Glad you got it. I've been bit by ABS problems on Buicks that just won't go away until you drive it, but I seriously wouldn't have suspected that out of an ambient temperature problem.
Good find.
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