2000 Toyota Camry AC not cooling, AC button lamp blinking its NOT relay or fuse

This is not the typical fix of a bad relay or fuse. I have to give credit to sparkys answers that outline the fix. I didn't see video on this so I created this video from Sparkys Answers info.
Sparkys Answers link sparkys-answer...
The good ohm test readings are as follows:
100 ohms - Speed sensor connector on compressor front 2 pins
10K ohms - Blue/white wire on wire harness connector from alternator test to ground.
Ground - brown wire on wire harness connector from alternator test to ground.

[@jeffrader1718]

This was exactly what I needed. My wires had somehow rubbed and we had a short going on. The mechanic didn't want to take a look for fear it would take too long to figure out. With your video I was able to see the wire was bad and got it fixed with some electrical tape. Thanks again.

[@databug88]

You're welcome! Great to hear!

[@luissantizo]

I am forever in debt to you sir! I nearly went crazy looking for the right answer while everyone else was saying “swap your relay” but never check the wiring! Thank you again and you got yourself a subscriber

[@databug88]

Glad it helped!

[@ErikForbes-u1d]

I have an 03 Camry and my ac light was blinking and not working. The relay was good as that was only video I could find to problem shoot. After seeing this I looked at connection on condenser unit and was able to fix. Thanks for the insight man!

[@databug88]

Glad it helped!

[@جونمورستن-ه1ك]

Thank you, I live in Saudi Arabia 🇸🇦🇸🇦 My friend, I have a 2001 Camry and the same problem as yours. I will solve it today. Thank you. I am grateful.

[@databug88]

your welcome

[@GentlemanJack-o2g]

Thanks man, I fixed my Camry after I watched this video. I found that the socket was loosen. Thanks a lot...

[@databug88]

Great!

[@carlosmejia5728]

The way to fix the connector is by removing the metal electric connector from it... *for that you need to remove first the little rubber piece that seals the back of it* .. *Next you need to insert a needle or something alike through the tiny hole next to the metal connector in order to release a little tab hidden inside that holds it in place then use something like a hook or pin to push it out with. Once outside you can reattach the lose wire to it and reinsert it in the same orientation it came out so it holds in place.... finally just reconnect the plug and you're done*

[@databug88]

Thank you Carlos I appreciate your instructions... I will will try in spring.

[@omarsiddiqi]

When doing these kinds of repairs, it's it necessary to remove the negative terminal of the battery?

[@j4jack116]

Get video.. helped fixed my blinking ac light and saved me some $$$$... thanks mate.

[@databug88]

Glad it helped !

[@inasingtr]

Good job.....with the connector.. you need to pry the white plastic holder...it does come out.. you then use a paper clip with a flatten end to pick a small plastic tab holding the spade crimp terminal.

[@databug88]

thanks for info I knew there was a way to get pin out LOL

[@larrybenedict6293]

Great detailed explanation it’s well appreciated everyone goes to relay only

[@databug88]

Glad you liked it

[@jasbirvirk9769]

Awesome video.Good job sir.Your way of making video great,clearing and showing everything.keep up good job.

[@databug88]

Thank you, I will

[@xtractify]

My AC runs for 30 seconds or so and then the clutch disengages and AC light starts blinking. Any idea what to look for first, it has a good gas charge in the system.

[@Mama_Ging]

I have a 2003 Toyota Camry and it worked perfectly! 🤙🏼🙌🏻The AC is actually colder than it has ever been!! You rock thank you so much what an easy fix!

[@databug88]

Great to hear!

[@charlesbenthall6481]

@@databug88 hello need your advice

[@databug88]

what s the question?

[@cloudk2030]

Wow I am hoping this is my issue thank you for making this video

[@databug88]

your welcome ! the key symptom to this is to watch the compressor clutch when the A/C button is turn on, the compressor clutch will engage for a second or two then disengage. you need to have some else turn ON A/C while you watch the clutch. You need to do from a fresh start, cycle the A/C button off then engine off, then start Engine and turn on A/C and notice clutch immediately if it engages for second.

[@cloudk2030]

@@databug88 weird cause my ac button for sure was blinking this morning and not working but i just checked and now its working fine with ice cold air

[@databug88]

Great... It could be broken wire inside that A/C connector and car vibrations may have reconnected it.

[@jared101502]

Awesome Video, I got the same issue with my 01Camry, Let me check those cables.

[@tomsavage6911]

Great video. I have a 2000 Camry. I hope that’s all I need.

[@databug88]

Thanks ! hope it helps good luck!

[@olumideoluwafemi6112]

For mine, it blinks sometimes I turn on the AC and sometimes it doesn't blink but these two scenerios usually blow cold. If it doesn't blink at the start but later start blinking it will stop blowing cold till I turn off the AC and put it on. The inconsistency is making me worried. What can I do?

[@identifiesas65.wheresmyche95]

Possible ice buildup due to moisture in lines. Pull complete vacuum and recharge by weight

[@areyouseriousholmes]

My ac works the first time i turn the car on. If i drive for a long time it might turn off, however when i shut the car off and turn it back on after driving it will not work and it blinks. Imma try this out and i pray it works. Thank you

[@databug88]

I don't think this is your problem. When you get blinking light the ECU is not seeing the right conditions in your AC system and shutting down your AC compressor to protect it. You say it works then it would fail on follow up start. You may be on the borderline low refrigerant and after usage the system detects low and shuts down compressor.

[@khengratha3264]

@@databug88 This my problem, It wont work after restart car and button will blinking again in some condition when car load max capacity of passenger. Could you share the reason and how to fix it?

[@imajointt]

I have a 2004 Toyota Avalon and the AC worked a few months ago then the light started blinking then it never turned on ever again there’s no leaks and it’s full of refrigerant what do you think it could be ? Please help me

[@Davey-TheDJ]

Hey y'all didn't show where u put the Refrigeration fluid in you did everything but that why?

[@databug88]

I didn't have Refrigerant leak, just broken sensor wire that needed to be fix.

[@Davey-TheDJ]

@@databug88 my apologies the link to this waz sent to me cuz my car needed a/c unit refilled and I didn't want to waist another can on tryin to fill it

[@databug88]

@@Davey-TheDJ No problem its all good.

[@terryp007100]

Guess fixing that ground wire took a couple hours... what would the shop charge the customer for the fix? Thx

[@databug88]

I think the shop should have been able to fix this within hour with the proper connector pin fix. The big variable is what they will charge here in northeast I don't think you going get away with a minimum 1 hr charge they like to get minimum of $250 for any fix. thats my experience.

[@kaisong3419]

It is helpful; I am going to check the relay in my car. I got blue light on, just no cold air come out.

[@databug88]

Did it work?

[@ng4410]

Great video thanks... On the 2004 camry i have. Put relay in and fixed it. But the green bulb that lights up on A/C switch cannot be replaced. It is a LED built into circuit board. More modern car design. Unrepairable.

[@databug88]

Glad you got it working. who cares about the indicator light just be happy its fix and you got AC!

[@HuffManic]

there's another 10a fuse in the fuse box for AC. Check that if the light doesn't illuminate at all.

[@matawan-ym4em]

Thank you! your video is really helpful

[@databug88]

Glad it was helpful!

[@williamwhitesides314]

What is the third wire for? Black and white. That's the one broken on my car.

[@signdebb]

Thank you so much for the video.

[@databug88]

You are so welcome!

[@ReitersBlock]

Helpful video, thanks!

[@databug88]

You're welcome!

[@jeffreyruple2668]

108.4 is that good connector on ac?

[@reddread1857]

I have a 2000 Toyota Corolla in old shape, when I first got the car the ac would work randomly and then it’d shut off and the Magnetic clutch wouldn’t move as well and the light blinks too I’m worried it could be expensive to repair

[@databug88]

The blinking light basically is saying something is not right with A/C system and the car computer is shutting it down to prevent damage to A/C compressor. In my case the computer is not receiving correct signal from the sensor on compressor and it turn out to be broken wire. I suggest you test the sensor connector as I have shown in video.

[@MrNiven13]

Thanks u soo much this help me a lot now

[@databug88]

Happy to help !

[@patsavage8953]

Thank you sir. Just gotta trace it back

[@databug88]

Your welcome !

[@normanalvarez5751]

Thank you bro I just subscribed.. great video really help me out

[@databug88]

Thanks for subscribing ... it really helps me out!

[@alexcorrea8103]

Hey yall check your relaid cus it powers the compressor to pump ac soo if is not the relaid fuse get diagnosed

[@MrLediogjergjani81]

Did the clutch engage, before the light started blinking?

[@databug88]

The key symptom is the Clutch does engage for about 1 to 2 secs then shuts down. The clutch stops because the ECU does not see the right signal condition from the sensor from the compressor and shuts down the clutch to prevent damage to compressor. Once the compressor is shut down by ECU it stays lock out you cannot see 1-2 secs clutch on then off by just pushing the button. You need to reset by turning off engine on restart you then can see the clutch momentarily engage then off. So you need to have some else start car and turn on AC button while you are looking at clutch to see this symptom.

[@MrLediogjergjani81]

@@databug88 thank you for responding. AC worked fine till my dumb ass when on some lexus forum and read that your car would shift better if you change the capacitor on the ecu. Did change all capacitor on the ecu. The only problem now is that the ac doesn't work. Compressor will engage for 2 seconds. Disadvantages and ac light will start blinking. I've taken the car to two mechanics. They couldn't find the problem. What do you think?

[@databug88]

When the button light is blinking it indicates the ECU is not getting the right signal from AC sensor so it locks out compressor. As in video i would check the blue/white wire for ohm reading. This blue white wire goes back to ECU. I would check all other 3 wires as shown in video too.

[@allstylinone5122]

Did you know that the Blue is the rarest color interior produced in 2000 & such....

[@jorasaveminiaturas]

Awesome explanation, in my case I have a 1998 4 cyl camry I do not got any readings from the white\blue wire, anbd is not broken do you know where that white \blue cable goes to?

[@databug88]

The blue/white wire goes back to computer or Electronic control unit as they call it. I do not know how it is routed. Just make sure the blue/White wire is not broken inside connector I would put a pin or safety pin thru the white/blue wire insulation before connector and test to the pin. Its rear for wire break mid stream its usually at connection points.

[@jorasaveminiaturas]

@@databug88 THANK YOU I was able to track the wire to the ECU and is perfectly fine I use a jump cable to measure the 10 ohm out of the ECU pin to the battery ground and it failed so I think I need a new ECU =(

[@databug88]

Wow can't imagine the ECU is bad. Keep me inform if you get it fix thanks!

[@RLO900]

The plug are easy to Remove, you must first remove the white cover because it is the lock of Terminals

[@databug88]

thanks for info

[@puppygadget3189]

Will it show what the problem is causing the blinking light on my 01 Camry A/C by scanning the computer with a mid grade scanner?

[@databug88]

I not aware if it will show up in scanner i would think not.

[@johnb5254]

2001 Corolla here. I was reading an open line on the blue/white wire (top right). Pulled it out of the connector, still open and also exposed the wire just behind the connector with the same open reading so probably ecu is bad or the wire to the ecu there is a break? The other 3 pins read 0.5, 0.5, and bottom right read 98 ohms.

[@databug88]

That sucks, I can't imagine ECU just bad on that. Wires fail usually at the connecting ends not midstream unless something cause a break. Although another youtuber said he trace the blue white wire good to ECU but tested open at ECU contact. Good luck if you get fix I Would like to know.

[@johnb5254]

@@databug88 Thanks for the fast reply. I can't imagine the wire being severed in between, yes perhaps it is the connection into the ecu itself. I'll check that out.

[@jeffs4483]

@@databug88 Hi. Same person here, different account. So the wiring diagram shows this blue/white wire first going to the AC amplifier then to the ECU. Do you think it could be a faulty AC amplifier if I am reading an open circuit with the blue/white wire? I can't imagine something wrong with the ECU or a loose connection there. I think i will check this amplifier first before I check the ECU. I saw on Ebay replacement amplifiers are reasonably priced, less than $50. Thanks.

[@databug88]

Wow I didn't know the blue / white is wired to AC amplifier then to ECU. If so I see your point the AC amplifier could be bad. I am not a auto mech just a DIYer with serious electrical experience. I am not familiar or know what the AC amplifier purpose and i cannot say how to check it.

[@jeffs4483]

@@databug88 Replaced the Ac amplifier circuit. Good news is that the Ac light stays on now, not blinking but it's blowing hot air. I'll check tomorrow under the hood if compressor is turning on or not.

[@tedp244]

Excellent video!

[@databug88]

Thank you very much!

[@MrNiven13]

Hi i need advice ..i checked the ohm on speed sensor of compressor and getting no value wat does that means

[@databug88]

If you not getting an ohm reading means either you have defective sensor or there is a broken no connection to sensor.

[@ObinnaOkoli-jd4lq]

Thanks

[@databug88]

Welcome

[@antonioc2017]

Hey man. So I have a 1996 Toyota Corolla. I leave the ac button on but when I come back to my car the button is no longer on the on (pressed). Does it resets by itself or am I going crazy?? Please gelpt

[@antonioc2017]

Answer

[@antonioc2017]

Please

[@databug88]

My A/C stays on so after engine off when I return to car The AC is on when I start car.

[@guillermocblancog4030]

Good job

[@databug88]

Thanks

[@TAKIZAWAYAMASHITA]

Mine for my Camry the light stays on doesn't blink or anything. But the ac doesn't do shit won't turn on or anything

[@cdars1]

Thanks so much bro

[@databug88]

Any time

[@mxwxgxgxb]

Thanks..

[@databug88]

You're welcome!

[@alexigodinez4298]

sometimes it's the belt, in my case it was that

[@databug88]

Good to know, Thanks !

[@devilmecare]

So basically strip the end of the wire and shove it back in.

[@databug88]

YES, I splice wire and strip it and put in pin hole. it will make contact to receiving connector pin.

[@hazztv6317]

🤣🤣🤣 Thankyou for the laugh

[@pardeshisuresh6576]

toyota land Crusier a/c light billinig what porbolam

[@ufolaoguy5240]

thank you

[@databug88]

You're welcome

[@jav1838]

Excelent thanks!!

[@databug88]

You're welcome!

[@marion1600]

Good diagnosis but horrible repair. To get that pin out of the connector you must first pull out that white plastic retainer in the inside and then use a small metal pick to push that pin out

[@databug88]

Yes i didn't know how to get that pin out and did not want damage connector. Now I know better Thanks!

[@thomasslate3406]

What if the computer wire doesn’t have any reading at all

[@databug88]

The computer blue \ white wire pin should measure 10k ohms to ground. In video I said 10 ohms I meant 10K ohms. If you do not get reading that means the the wire is open or broken somewhere. Hopefully its broken off inside the connector similar to what happen too my brown ground wire. To test the blue / white wire, strip a little bit of insulation off the computer wire behind the connector and test the exposed wire hopefully you see 10k ohms. Just tape back the expose wire. you can also try tug the wire a bit see if it comes out of the connector if its broken off inside. If you still test no reading at strip wire behind connector then you need to follow the wire harness going back to computer and see where it may have possibly broke. Good luck!

[@tnelson5762]

Is the air blowing though?

[@databug88]

Yes the cool air is blowing. AC is cooling working normal.

[@lencholencho4429]

Thank you!!!!!!

[@databug88]

You're welcome!

[@katiec2864]

If green light stays on and it blows room temperature air what could it be? 😵‍💫

[@databug88]

you need to check if your compressor clutch is engage if so you probably low on refrigerant and if it is low you have a refrigerant leak.

[@shuntaylor6490]

Belt won't come on on my 99 Geo prizm

[@andyrips834]

What about ac staying on, I can’t get it to go off

[@databug88]

Wow stuck ON that a new one for me. maybe relay stuck try swapping it and see. Or maybe your dash ac switch stuck on.

[@HeavyHookSet14]

Did anyone find no ohm reading going back to the computer?

[@databug88]

No ohm reading is open circuit no connection to computer. The wire may be broken off the pin inside the connector as it was with my ground wire. Try testing the wire an inch away from connector you can strip wire a bit or poke a needle into wire.

[@raysdotnine]

Hehehehheheheeeheheh ty

[@databug88]

your welcome

[@chriscarter4733]

D

[@humboldtaloha]

It would have been just as easy to repair the connector the proper way.

[@databug88]

yes i agree another KZbinr commented with details how to remove the pin out of the connector and reconnect it.

[@georgecabulong6133]

Thank you so so soooo much i have a 2002 toyota celica and it was the relay that was wrong with mine u got yourself a sub✊🏼💯

[@databug88]

Thanks for the sub!

[@hardeehonariusbasil9115]

Thank you very much for this info...

[@databug88]

your welcome !

[@brettd2318]

This is a bloody great video mate. Thank you.

[@databug88]

Glad you enjoyed it

[@ericwilson6171]

p

[@dandelionoutsider]

Just buy a new pigtail for the connector

[@databug88]

Thanks for info, i wasn't aware you can buy new pig tail.

[@anthonyiwuoha5089]

Thanks great engineer. Love this video

[@databug88]

Glad you enjoyed it! Thank you for great comment.

[@neilcohen2780]

Great video on how to in detail this guy knows what he is doing thumbs up

[@databug88]

Thanks 👍

[@glynnherron8065]

Yessss. Bad fuse! I'm blowing ice now. Thanks man

[@databug88]

Great glad to hear it just fuse!

[@glynnherron8065]

@@databug88 yes thanks bro!

[@ckuyang]

Thank you for showing the checking process.

[@databug88]

your welcome

[@ErikForbes-u1d]

I have an 03 Camry and my ac light was blinking and not working. The relay was good as that was only video I could find to problem shoot. After seeing this I looked at connection on condenser unit and was able to fix. Thanks for the insight man!

[@databug88]

Glad it helped!

[@buhrooook]

Blue/white wire to ground should read 10K ohms, not just 10 ohms like whats stated in your description, threw me off since i have a manual ranging multimeter. Otherwise the video helped me check my 99 camry so thx

[@databug88]

You are correct ! The Blue/white should read 10K ohms I corrected description. Thanks for bringing it to my attention.

[@west_park7993]

same with mine. i just discovered that the clutch gone bad. system under pressure. 23 years, 333,333 miles.

[@databug88]

wow 333k miles I have 250K congrats

[@ijazrasool2762]

Ramzan

[@shuntaylor6490]

Great

[@databug88]

Thanks

[@fredfred7823]

My radiator fans won’t turn on and Only turn on when the ac is on. I also have the same blink on the ac what do you think it might be?

[@databug88]

The Radiator fans are not always on only when needed or when AC is on that's my understanding. My light blinking was because of the bad sensor ground wire on the connector to AC compressor as shown in video.

[@fredfred7823]

@@databug88 thank you

[@oodeeps]

Thank you for the video. I also had a broken wire (the blue/white)

[@databug88]

Glad it helped

[@omaralsamraie204]

Good 👍

[@databug88]

Thanks

[@JasonStewart473]

Thanks bro you the best. This was exactly my issue also. Just got a couple other issue with ac. 1 - ac only blows when on high 2 - ac temperature adjust cannoy turn all the way to the left (blue) stop half way in the blue. 3 - right vents blows warmer air than left vents Any video showing fixes for the above issue appreciated

[@databug88]

Thanks. If the fan only Blows on high It probably the resistor pack connected to the fan motor. The resistor pack is located passenger side below glove compartment. The other items 2 & 3 Im not familiar with them issues.

[@JasonStewart473]

@@databug88 yep it was the resistor, it's working now. Thanks again

[@databug88]

Your welcome Glad to hear!

[@refills9344]

@@databug88 when I put my ac on 4 blows full strength on the middle right side not the passenger feels like 1-2. Any ideas what can be the cause of this ?

[@sangkhau9805]

I don't have a negative control signal to the replay when i turn ac on. do you know which out pin in computer to control the replay?

[@omaralmaghrabi]

I get no signal from white blue or white red wires from the cable. So I narrowed down the problem but how do I fix it?

[@brewswillis9783]

Great vid, thanks!!

[@databug88]

your welcome !

[@gregallen3398]

Great job

[@databug88]

Thanks

[@christopherdorho5829]

Thanks buddy

[@databug88]

Any time

[@antonioc2017]

The button type is just like yours..

[@ejud2001]

Beautifully done video.

[@databug88]

Thank You ! I appreciate your comment.

[@ricgomez1]

So what's the next step if we get no reading to blue white wire (computer wire) I got nothing.

[@databug88]

Make sure blue white is not broken off the pin inside the connector. To test this insert a needle pin into blue white wire inch or two away from connector and test to the pin see if you get reading 10 ohms. If still no reading you need to follow blue white wire to see where it may be broken. If you get a reading then its broken inside connector and you should be able to tug off the wire from plug. Wires typically do not break mid stream its most likely at the connection points.

[@ricgomez1]

@@databug88 thank you, I'll check that out

[@sandyrivera9146]

So if it’s blink it means somethings wrong with it? It doesn’t mean it needs more refrigerant?

[@databug88]

If its Blinking it means the ECU / computer in car is seeing something wrong with AC system and will prevent the compressor to come on to protect it. Yes It can be low refrigerant or other problems.

[@crabapple6775]

my green light comes on and stays on, but no cold air. Any hints ? 2000 camry LE 4 cyl

[@databug88]

check: compressor clutch is engage AC relay & Fuse Refrigerant

[@shelleyowens7554]

The wire that has broken on mine is actually the wire one. How would I fix that one

[@databug88]

I have no idea how its broken, I suggest you have someone familiar with wiring look at it. It should be easy fix for a wire guy.

[@gashatube6962]

Same problem same wire broken reconnect wire ac works fine. Thank you.

[@databug88]

great this is a good fix

[@mohamadfairoos4858]

Chekd time car switch on

[@htztaxfedyxfedneri5626]

we

[@مازنالزهراني-ي7د]

كفو يا خواجه ❤👍🏻

[@MrNiven13]

Should the key switched to on position before testing ??

[@databug88]

No, no key in, engine is off

[@davidmckissak2793]

It's a short. Mind does this when driving in the rain

[@databug88]

Thanks for info

[@ivannatasius3018]

before blinking is any sound you hear sir it's like tuuuth sound? & i smeel like freon in cabin

[@databug88]

I hear no sound before blinking light. if blinking light is on it disable the A/C compressor from running.

[@ivannatasius3018]

@@databug88 maybe my mg clutch burn out?

[@crabapple6775]

what model camry is that ?

[@databug88]

2000 camry LE 4 cylinder

[@richardlove4287]

Well done pal. Top job.

[@databug88]

Thanks!

[@malikmohamedmellouki9647]

How that ground with getting broken

[@databug88]

The car is over 20 yrs old. It broke off from the pin inside the connector from 20 years of vibration i assume. I google the blinking ac light issue it referred me to an article of someone else with this same issue and it turns out i had the same ground wire broken off connector. so this may be a common problem for aged camrys.