ac has a blinking light
Thread Starter
Intermediate
Joined: Jan 2006
Posts: 27
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From: Roanoke Virginia
ac has a blinking light
I can not find my book (Service Manual) to find out how to reset the computer so my AC will work again. I had the battery disconnected alot while working on it. I had this problem a couple years ago and once I reset it the AC worked fine. Please let me know how the reset steps if you know Thank you! Also When I do the a hard acceleration the parking brake light flashes and then the ASR and ABS light comes on?????
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
I can not find my book (Service Manual) to find out how to reset the computer so my AC will work again. I had the battery disconnected alot while working on it. I had this problem a couple years ago and once I reset it the AC worked fine. Please let me know how the reset steps if you know Thank you! Also When I do the a hard acceleration the parking brake light flashes and then the ASR and ABS light comes on?????
I would check the fluid level in the master cylinder for the brake light issue, the level doesn't need to drop much to cause what you describe, good luck.
Team Owner
Joined: Dec 1999
Posts: 34,873
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From: Lacey WA RVN 68-69
NCM Sinkhole Donor
Does your car have the RPO C68 Electronic Climate Control? Disconnecting the battery should not have an effect on A/C operation by itself. A blinking light indicates some sort of problems that has been detected by the system. The C68 system can generate error codes specific to the A/C system.
This chart shows you how to diagnose C68 problems
With the engine running, turn on the A/C. Does the compressor clutch engage and disengage every few seconds? That may be due to a loss of refrigerant. (Code 09 in the chart).
As far as the lights coming on on hard acceleration, that is usually an indication of low brake fluid level in the master cylinder reservoir. Although it may look full, the fluid level can be only a 1/4" down and you can get those lights under hard acceleration, hard braking or even high-speed tight turns. The "MAX" line on the side of the reservoir is hard to see but top the fluid off so that the level is at that line or just above it.
This chart shows you how to diagnose C68 problems
With the engine running, turn on the A/C. Does the compressor clutch engage and disengage every few seconds? That may be due to a loss of refrigerant. (Code 09 in the chart).
As far as the lights coming on on hard acceleration, that is usually an indication of low brake fluid level in the master cylinder reservoir. Although it may look full, the fluid level can be only a 1/4" down and you can get those lights under hard acceleration, hard braking or even high-speed tight turns. The "MAX" line on the side of the reservoir is hard to see but top the fluid off so that the level is at that line or just above it.
