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> No A/C - button blinks
post Jun 29, 2010 - 6:45 AM
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speed-CCNP



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Hi all,

My A/C compressor is not staying on. I press the A/C button and I hear it click like it's engaging but it cuts on for a few seconds then the A/C button blinks.
I installed a new A/C relay, condenser, evaporator, and compressor. I took it to a shop to have it changed and its holding pressure.

I'm not sure what to try. Any thoughts by the group?

Thanks
post Jun 29, 2010 - 8:45 AM
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Smaay

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the AC exciter (or whatever its called) is behind the glovebox. it might have become disconnected. when i rebuild my engine i forgot to plug this in and mine behaved the same way


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2001 Celica GT-S Turbo
1997 Supra TT 6speed
1997 Celica 3MZ/1MZ swap
1990 Celica All-Trac
post Jun 29, 2010 - 11:57 AM
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nics



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QUOTE (Smaay @ Jun 29, 2010 - 6:45 AM) *
the AC exciter (or whatever its called) is behind the glovebox. it might have become disconnected. when i rebuild my engine i forgot to plug this in and mine behaved the same way


you have a pic of it smaay?


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post Jun 29, 2010 - 4:05 PM
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AMCMoe



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On the passenger side, get on the floor and look up under the dash behind the glovebox. You'll see the blower motor and some connections around it, make sure everything is connected up there. Mine was doing the same thing when I first bought the car and the AC amplifier connector was disconnected which caused the button to blink.

Hard angle to get a picture from but here's the best I could take:


This post has been edited by AMCMoe: Jun 29, 2010 - 4:07 PM
post Jun 29, 2010 - 5:13 PM
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nics



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QUOTE (AMCMoe @ Jun 29, 2010 - 2:05 PM) *
On the passenger side, get on the floor and look up under the dash behind the glovebox. You'll see the blower motor and some connections around it, make sure everything is connected up there. Mine was doing the same thing when I first bought the car and the AC amplifier connector was disconnected which caused the button to blink.

Hard angle to get a picture from but here's the best I could take:


ok will try mine. yeah i got mine with the a/c blinking.

they say its the compressor but ill check ont his this 1st.


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post Jun 29, 2010 - 8:54 PM
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speed-CCNP



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I found it and it was connected but I might have a spare one on the Caldina clip. I will check when I get home.
I found one on ebay but it was sold.

http://cgi.ebay.com/ebaymotors/ws/eBayISAP...RK%3AMEWNX%3AIT

I took it to two shops and they told me the condenser and then evaporator. I called my dealer and they wanted $145 for the parrt/


Thank you for the help !! biggrin.gif

post Jul 1, 2010 - 10:25 AM
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Mr_Tee



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There is a switch on the compressor, you might want to check that as well.
post Jul 1, 2010 - 11:20 AM
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stephen_lee



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ok some things to check to help me help you:

does ur ac compressor actually kick on?

do the fans turn on at low speed when they do?

does it stay on for a couple seconds, click off, and then blink the light?

check the wire going to ur compressor, how many are there? (one pin, 3/4 pins)


--------------------
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"And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH

1994 GT: V6 swap, 5speed E53 W/ LSD, All Power, now RED
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post Jul 1, 2010 - 11:27 AM
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nics



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QUOTE (stephen_lee @ Jul 1, 2010 - 9:20 AM) *
ok some things to check to help me help you:

does ur ac compressor actually kick on?

mine turns on for a while when the engine is cold then when it get warm, compressor shuts off

do the fans turn on at low speed when they do?

fans turns on

does it stay on for a couple seconds, click off, and then blink the light?

stays on until the engine gets hot

check the wire going to ur compressor, how many are there? (one pin, 3/4 pins)

idk will check


dont mean to thread jack but i wanna have mine fixed too frown.gif


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post Jul 1, 2010 - 5:38 PM
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stephen_lee



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ur probly over charged. check the low pressure side when its running. shouldnt be above 50psi

QUOTE (nics @ Jul 1, 2010 - 11:27 AM) *
QUOTE (stephen_lee @ Jul 1, 2010 - 9:20 AM) *
ok some things to check to help me help you:

does ur ac compressor actually kick on?

mine turns on for a while when the engine is cold then when it get warm, compressor shuts off

do the fans turn on at low speed when they do?

fans turns on

does it stay on for a couple seconds, click off, and then blink the light?

stays on until the engine gets hot

check the wire going to ur compressor, how many are there? (one pin, 3/4 pins)

idk will check


dont mean to thread jack but i wanna have mine fixed too frown.gif


--------------------
QUOTE
"And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH

1994 GT: V6 swap, 5speed E53 W/ LSD, All Power, now RED
1995 ST: SOLD @273k miles, Auto, all power, CarPC, White
1994 ST: Totaled, 5spd, all power, Red RIP 07/09/09 @ 241,810
1994 Lexus LS400: This is my new DD
post Jul 2, 2010 - 8:11 PM
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speed-CCNP



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QUOTE (stephen_lee @ Jul 1, 2010 - 12:20 PM) *
ok some things to check to help me help you:

does ur ac compressor actually kick on?

Yes mine does

do the fans turn on at low speed when they do?
yes they do

does it stay on for a couple seconds, click off, and then blink the light?
yes, mine blinks

check the wire going to ur compressor, how many are there? (one pin, 3/4 pins)

One wire to the compressor


I found 3 AC amplifiers at the junk yard. i tried all 3 of them and the light still blinks.

I'm at a loss now.


QUOTE (stephen_lee @ Jul 1, 2010 - 6:38 PM) *
ur probly over charged. check the low pressure side when its running. shouldnt be above 50psi

QUOTE (nics @ Jul 1, 2010 - 11:27 AM) *
QUOTE (stephen_lee @ Jul 1, 2010 - 9:20 AM) *
ok some things to check to help me help you:

does ur ac compressor actually kick on?

mine turns on for a while when the engine is cold then when it get warm, compressor shuts off

do the fans turn on at low speed when they do?

fans turns on

does it stay on for a couple seconds, click off, and then blink the light?

stays on until the engine gets hot

check the wire going to ur compressor, how many are there? (one pin, 3/4 pins)

idk will check


dont mean to thread jack but i wanna have mine fixed too frown.gif



It's all good!!! smile.gif We are after the same thing

post Jul 3, 2010 - 2:24 PM
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st18

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i work for a toyota delership and most of the time when the light flashes the car is out of freon i know it sounds stupid. but check it there is a site glass on the dyer it is located behind the drivers side high beam follow the lines make sure the car is running and watch for bubbles if they apear it is low. if thats not it replace the magnetic clutch relay in the fuse box with one from the junk yard like 5 dollars and see what happens. also if it is out check the condensor for oil spots.

This post has been edited by st18: Jul 3, 2010 - 2:29 PM
post Jul 3, 2010 - 2:37 PM
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lagos



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QUOTE (speed-CCNP @ Jun 29, 2010 - 7:45 AM) *
Hi all,

My A/C compressor is not staying on. I press the A/C button and I hear it click like it's engaging but it cuts on for a few seconds then the A/C button blinks.
I installed a new A/C relay, condenser, evaporator, and compressor. I took it to a shop to have it changed and its holding pressure.

I'm not sure what to try. Any thoughts by the group?

Thanks



You either have the incorrect freon pressure, or your swap wiring harness is not wired up correctly for AC.

This post has been edited by lagos: Jul 3, 2010 - 2:37 PM


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post Jul 5, 2010 - 9:36 AM
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b22ri22an



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when i first got my celica mine did the same thing... light would blink after the ac was on for a minute or so. it ended up being something really simple... ac belt was slipping never heard any squealing or anything but after i changed the belt i havent had an ac problem since. by the way i found out belt was slipping by the battery light eventually coming on a few days later, i was actually still scratching my head on the ac problem, but after changing the belt the ac light stopped blinking and has worked well since.


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post Jul 5, 2010 - 11:19 PM
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erahman85

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I have the same problem with my car. After the swap the a/c light started blinking. I know its not the freon because I never disconnected any of the lines and the a/c compressor was always working before the swap....

EDIT: I checked that plug from the picture and there isn't anything connected to it so I guess I found my problem... Sorry for jacking the thread as well lol

This post has been edited by erahman85: Jul 6, 2010 - 12:25 AM
post Jun 10, 2013 - 7:04 PM
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Malhar95

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Got the same problem, but the wires seem to be cut,

Where am I suppose to connect these to?




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post Jun 10, 2013 - 10:35 PM
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RabidTRD



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Another thing that will cause the light to flash is when the compressor gets wet, like from a puddle, and the belt slips momentarily. I've had that happen a couple times and just shut it off then on again and it was fine.


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post Jun 11, 2013 - 11:59 AM
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Malhar95

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QUOTE (RabidTRD @ Jun 10, 2013 - 10:35 PM) *
Another thing that will cause the light to flash is when the compressor gets wet, like from a puddle, and the belt slips momentarily. I've had that happen a couple times and just shut it off then on again and it was fine.



In my case the wires aren't going anywhere, not sure if it shows properly in the pics.


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post Jun 11, 2013 - 2:00 PM
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richee3



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How did those get cut?! The herbed should be laying underneath your glove box somewhere. That part of the wiring harness are part of the engine harness that comes through the firewall behind the glove box. They should be there somewhere.


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post Jun 11, 2013 - 4:36 PM
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Malhar95

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QUOTE (richee3 @ Jun 11, 2013 - 2:00 PM) *
How did those get cut?! The herbed should be laying underneath your glove box somewhere. That part of the wiring harness are part of the engine harness that comes through the firewall behind the glove box. They should be there somewhere.



I got the car like that. Ac never worked didnt realize until it started getting too hot here. Usually I kept my windows down.

Ill take he glovebox out and look around. Get better pics.

If not would anybody have a wiring diagram or can someone take pics of that area if they have the dash apart?thanks in future


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