08-08-2007, 10:50 AM
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#61
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Junior Member
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Join Date: Jul 2007
Location: Williston, FL
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Mission accomplished, relay saved by Rando, no sparks..flames...just a nice steady A/C light. My $1.00 diode fit nicely without extra wire extensions and it lays covered with shrinkable spagetti along side the heater and MCR relays just as you said. Thank you sir for your fantastic assistance !
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2003 4 Runner Sport Edition, V-8, Galactic Gray Metalic, Lighted Running Boards, 11/2002
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11-05-2007, 11:23 AM
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#62
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Join Date: May 2005
Location: San Antonio, TX.
Age: 44
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Well, my '03 4Runner made it to 96k miles before the A/C light started blinking yesterday. I tried to switch the A/C off and back on and it didn't work. I then turned it off for a few minutes, waited, then turned it back on and it worked all afternoon after that. I'm thinking about just swapping the relay with the foglight relay and just run with it. I almost *never* use the useless foglights, so I figure that'll give me another 50-90k miles before I have another relay start to go bad. At that point I can decide if I feel like buying the updated part number or not.
Any thoughts?
I don't really feel like rigging up the diode. Has anybody with the updated part number had the blinking A/C light problem at all? Is that new relay truly a permanent fix?
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2003 2WD Galactic Grey V8 Sport
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11-05-2007, 11:44 AM
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#63
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Senior Member
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Join Date: Jan 2004
Location: Hawley, PA
Age: 72
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Senior Member
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Quote:
Originally posted by RickyCRX
Well, my '03 4Runner made it to 96k miles before the A/C light started blinking yesterday. I tried to switch the A/C off and back on and it didn't work. I then turned it off for a few minutes, waited, then turned it back on and it worked all afternoon after that. I'm thinking about just swapping the relay with the foglight relay and just run with it. I almost *never* use the useless foglights, so I figure that'll give me another 50-90k miles before I have another relay start to go bad. At that point I can decide if I feel like buying the updated part number or not.
Any thoughts?
I don't really feel like rigging up the diode. Has anybody with the updated part number had the blinking A/C light problem at all? Is that new relay truly a permanent fix?
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I've had mine in for about 10k with no repeat of the problem. Of course, the first relay lasted about 35k before it started to fail, so who knows how long the replacement relay will last?
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I can Explain it to you, I can't Understand it for you.
'08 Tundra SR5 5.7 V8 Double Cab, White, Equalizer WD system, '91 Coachmen Catalina 260FK, '89 Grumman GSS w/35HP Force O/B, 8' Snowbear utility trailer, 2012 Polaris 500HO LE in Camo, 7 x 14 TWF Landscape trailer w/2 ramps.
Last edited by TechWrench; 11-05-2007 at 04:27 PM.
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11-05-2007, 12:09 PM
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#64
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Join Date: Jun 2007
Location: SoCal
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Quote:
Originally posted by TechWrench
Nice detective work. I'm not used to seeing mechanical relays sealed like that, Thats why I thought it might be a SSR. I guess it is to keep them clean given the environment they work in. Though some of the other relays in the box aren't sealed, in any case. Those contacts are, with out a doubt, burnt. I'm hoping the fog light relay holds out until the new relay is available again. I think the original A/C relay lasted 3 years, so I hope we have some time before the next one fries.
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I think the sealed relays contain nitrogen to reduce arcing, but with no diode shunt it will fail anyway.
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Larry
"Monsters From the Id"
2004 SR5 V6 Titanium Metallic/Stone, Auto Dimming Compass Mirror, Valor Tip, Overhead Console W/HomeLink, Cargo Net, Michelin Cross Terrains, Added JBL Synthesis 10 speaker system 6/08, USA Spec PA-15 TOY Ipod Interface, Drivers Side Overhead Handle, Valvoline Synpower 5W-30, Mobil 1 75W-90, LEDs
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11-10-2007, 01:04 PM
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#65
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Join Date: Dec 2003
Location: BC
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Same issue here. It's been occurring off/on by itself over the last year. Thanks to all that helped identify and especially the one that provided that awesome solution.
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11-25-2007, 08:43 PM
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#66
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Join Date: Jan 2006
Location: Central Florida
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Once again T4r.org comes through. The worst part of this entire problem was trying to search for 'blinking AC" when the forum doesn't allow 2 letter search terms. A search for 'blinking button' brought this thread to the top. ;)
I do have one slight addition to the excellent information already posted though...
I did the 12V outlet mod a while back and put the relay in the glove box just in case I ever needed it. Well you guessed it, it was yet the same relay. I plugged it in and cold air is in the house again.
My '03 doesn't have fog lights and in turn it didn't have the relay there for them either. I got to thinking and checked the one in the glove box and got lucky. I figure I have another 60-70k miles to get the diode installed. Hopefully.
Thanks again everyone...
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2003 Silver/Gray SE5 V8 T4R
1995 4x4 Xcab Truck 8.5" lift, 36x13.5 Iroks on M/T Classic Locks, 5.29's, Lockright locker, OBA and a Train Horn
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11-27-2007, 02:21 AM
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#67
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Hudos to Toyota of Dallas as their replacement relay fixed this defect that 1) was out of warranty and 2) isn't covered under the extended warranty and 3) was over $100 cheaper than in my back yard!
Part # 90987-02028 for $45.56. Up here in Ripeoff Country the stealer wanted over $160 bills for the exact same relay!! Canadian Stealers should wave flags that have us fools bent over with them stickin' it to us. Bast.ards! :xnuts:
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01-12-2008, 02:16 AM
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#68
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Senior Member
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Join Date: Oct 2007
Location: SoCal
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I'm having problems with my AC. It only feels like the fan is on vs. the AC. However...the light doesn't blink. I've checked my relay, and...frankly I saw 5 with the 90987-02022 code. Could my AC problem be with the Relay being bad even though it doesn't blink?
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01-12-2008, 03:05 AM
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#69
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Quote:
Originally posted by simple
I'm having problems with my AC. It only feels like the fan is on vs. the AC. However...the light doesn't blink. I've checked my relay, and...frankly I saw 5 with the 90987-02022 code. Could my AC problem be with the Relay being bad even though it doesn't blink?
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I guess you could swap one of the other relays (fog lights) and give it a try.
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01-12-2008, 03:17 AM
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#70
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Join Date: Oct 2007
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Quote:
Originally posted by yabedude
I guess you could swap one of the other relays (fog lights) and give it a try.
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Well Hello Captain Obvious. I just read this whole thread and I can't believe I didn't think of that!!!
However, with that being said...isn't that the same relay therefore not fixing the problem? Why does the same part work in all those other relays, but not the magnetic clutch? Anyway, I will definitely try that tomorrow and take my car for a long drive and see how it works. Thanks!
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01-12-2008, 04:27 AM
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#71
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Presumably, the (old model) relay will die a slow death as an AC relay due to the power surge when the AC powers off (or is that on). That level of voltage isn't present in other devices. So if you do swap them and it works, I'd swap the relay back and buy a newer model replacement relay cause you'll eventually destroy the swapped one too.
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01-12-2008, 04:39 AM
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#72
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Registered User
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Join Date: Jun 2006
Location: Paradise USA
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I just had the same problem on my 03 today.
Swapped out the old relay for a new one and viola, No HEAT!!!
The Mechanic said the Horn Relay can be used as a replacement while you go and get the new A/C one. The Horn and A/C relays are apparently the same part.
Just no horning anyone! Yelling does the same trick though
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01-24-2008, 01:09 PM
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#73
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Join Date: Jun 2003
Location: Nor Cal
Age: 55
Posts: 324
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NEVERMIND! SOLD!
Thanks...
If anyone needs one of these relays, let me know! I have an extra brand new, never used, sitting on the shelf in my garage. I'll sell it for $20 plus shipping.
Thanks,
webshot
Last edited by webshot; 01-24-2008 at 03:07 PM.
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05-11-2008, 11:55 PM
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#74
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Join Date: Jan 2003
Location: Cumming, GA
Age: 56
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You Guys Rock
Mine started Blinking on Friday. I was bummed all weekend as I was expecting to have to shell out some cash to get the A/C fixed. I decided to search, found this, swapped out the Fog Light relay and I have A/C. Going to the dealer tomorrow to get a new one. Guys thanks again!!
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Scott
2003 Black 4Runner LTD V8 4WD
Rear-air Suspension, NAV, XM Satelite Radio
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05-25-2008, 05:14 PM
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#75
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Member
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Join Date: Feb 2004
Location: Westchester, NY
Age: 52
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Join Date: Feb 2004
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Thank goodness for this thread, I thought I was going to have to go to the dealer.
This past winter my light started to flash and since I didn't need the a/c I just turned it off. About a month ago I tried it again and it was working, until today.
Did a quick search here and found the problem was easy to diagnose and even fix. For now I banged the relay against the ground and its working again but I just ordered the newer relay from Partznet so hopefully I'll have the permanent fix soon.
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