Rear defrost broke

2k3stanggt · January 25th, 2009, 04:10 PM

Whats goin on ever since i bought my car the rear defrost didnt work and than one day i started takin the dash apart and found that it was unplugged so i plugged it in. The thing is the rear defrost stays on even when the ignition isnt on anybody got an idea???? well the light is anyway not sure if the windows heats up or not.

97S281 · January 25th, 2009, 05:24 PM

Have you tried replacing the switch?

2k3stanggt · January 25th, 2009, 07:44 PM

i havnt tried anything yet. thought id ask around for ideas first do you think i could use my fog light switch to see if it works?

wraitherx · January 25th, 2009, 07:45 PM

Originally Posted by 97S281

Have you tried replacing the switch?

+1, you may have a faulty switch and this is why the left it unplugged.

2k3stanggt · January 25th, 2009, 08:18 PM

well i plugged it in to see if the rear window even heats up but nothing and of course the switches have keys so i cant try on of those i guess i gotta wait and see if i cant find another switch i hope its only the switch and not the wiring cuz that would suck

wraitherx · January 25th, 2009, 08:20 PM

more then likely the switch itself is stuck, the internal components that turn it on and off

2k3stanggt · January 25th, 2009, 08:26 PM

i hope so idk if it helps but when i depress the switch it gets brighter and when i release it it dims again

wraitherx · January 25th, 2009, 08:37 PM

yeah, it sounds to me like the internal switch is kind of sticking

2k3stanggt · January 25th, 2009, 08:46 PM

just in case thats not it is it possible that a relay is blown or something like that

wraitherx · January 25th, 2009, 09:52 PM

also possible, the relays magnetic switch might be sticking

qwik48r · January 25th, 2009, 10:38 PM

I'd swap a relay from something.. like horn, ign, ect..

if it turns off, bingo. stuck relay.

wraitherx · January 25th, 2009, 11:35 PM

^1, what up qwik, yeah hes got the right idea you can change over a relay from a non critical component so that you can test it.

qwik48r · January 25th, 2009, 11:51 PM

not much man... drinkin a bud.. watchin the game lol

2k3stanggt · January 25th, 2009, 11:55 PM

i like that idea im gonna try that out first thing tomo morning thx guys

qwik48r · January 25th, 2009, 11:56 PM

no problemo

2k3stanggt · January 26th, 2009, 12:39 AM

you guys know where the relay is located

qwik48r · January 26th, 2009, 12:56 AM

I dont own a 99-04.

owners manual.. if its a fuse, its the switch.

2k3stanggt · January 26th, 2009, 12:59 AM

aight sounds good thx again

January 25th, 2009, 04:10 PM	#1
2k3stanggt Regular 2003 Mustang GT slow Join Date: Jun 2008 Location: Hawaii Posts: 109 iTrader: 3 reviews	Rear defrost broke Whats goin on ever since i bought my car the rear defrost didnt work and than one day i started takin the dash apart and found that it was unplugged so i plugged it in. The thing is the rear defrost stays on even when the ignition isnt on anybody got an idea???? well the light is anyway not sure if the windows heats up or not.

January 25th, 2009, 05:24 PM	#2
97S281 Rollin' 18/ pushin' 2 1997 Saleen S281 Join Date: Feb 2007 Location: The lost highway Posts: 6,673 iTrader: 13 reviews	Have you tried replacing the switch? __________________ MODS IN GARAGE NCMM ORIGINAL BLOWN 96-98 CREW MEMBER # 1

January 25th, 2009, 08:20 PM	#6
wraitherx Moderator '99 SVT Cobra Join Date: Nov 2006 Location: Virginia Beach, VA Posts: 9,568 iTrader: 11 reviews	more then likely the switch itself is stuck, the internal components that turn it on and off __________________ BUILD 2 IN PROGRESS

January 25th, 2009, 08:37 PM	#8
wraitherx Moderator '99 SVT Cobra Join Date: Nov 2006 Location: Virginia Beach, VA Posts: 9,568 iTrader: 11 reviews	yeah, it sounds to me like the internal switch is kind of sticking __________________ BUILD 2 IN PROGRESS

January 25th, 2009, 09:52 PM	#10
wraitherx Moderator '99 SVT Cobra Join Date: Nov 2006 Location: Virginia Beach, VA Posts: 9,568 iTrader: 11 reviews	also possible, the relays magnetic switch might be sticking __________________ BUILD 2 IN PROGRESS

January 25th, 2009, 07:44 PM	#3
2k3stanggt Regular 2003 Mustang GT slow Join Date: Jun 2008 Location: Hawaii Posts: 109 iTrader: 3 reviews	i havnt tried anything yet. thought id ask around for ideas first do you think i could use my fog light switch to see if it works?

January 25th, 2009, 08:18 PM	#5
2k3stanggt Regular 2003 Mustang GT slow Join Date: Jun 2008 Location: Hawaii Posts: 109 iTrader: 3 reviews	well i plugged it in to see if the rear window even heats up but nothing and of course the switches have keys so i cant try on of those i guess i gotta wait and see if i cant find another switch i hope its only the switch and not the wiring cuz that would suck

January 25th, 2009, 08:26 PM	#7
2k3stanggt Regular 2003 Mustang GT slow Join Date: Jun 2008 Location: Hawaii Posts: 109 iTrader: 3 reviews	i hope so idk if it helps but when i depress the switch it gets brighter and when i release it it dims again

January 25th, 2009, 08:46 PM	#9
2k3stanggt Regular 2003 Mustang GT slow Join Date: Jun 2008 Location: Hawaii Posts: 109 iTrader: 3 reviews	just in case thats not it is it possible that a relay is blown or something like that

January 25th, 2009, 10:38 PM	#11
qwik48r MM Fanatic alotta shit no fat girls fast Join Date: Jan 2008 Location: in the woods Posts: 3,681 iTrader: 1 reviews	I'd swap a relay from something.. like horn, ign, ect.. if it turns off, bingo. stuck relay. __________________ mind your business what i drive... i'm on a fucking mustang forum. qwik's build

January 25th, 2009, 11:35 PM	#12
wraitherx Moderator '99 SVT Cobra Join Date: Nov 2006 Location: Virginia Beach, VA Posts: 9,568 iTrader: 11 reviews	^1, what up qwik, yeah hes got the right idea you can change over a relay from a non critical component so that you can test it. __________________ BUILD 2 IN PROGRESS

January 25th, 2009, 11:51 PM	#13
qwik48r MM Fanatic alotta shit no fat girls fast Join Date: Jan 2008 Location: in the woods Posts: 3,681 iTrader: 1 reviews	not much man... drinkin a bud.. watchin the game lol __________________ mind your business what i drive... i'm on a fucking mustang forum. qwik's build

January 25th, 2009, 11:55 PM	#14
2k3stanggt Regular 2003 Mustang GT slow Join Date: Jun 2008 Location: Hawaii Posts: 109 iTrader: 3 reviews	i like that idea im gonna try that out first thing tomo morning thx guys

January 25th, 2009, 11:56 PM	#15
qwik48r MM Fanatic alotta shit no fat girls fast Join Date: Jan 2008 Location: in the woods Posts: 3,681 iTrader: 1 reviews	no problemo __________________ mind your business what i drive... i'm on a fucking mustang forum. qwik's build

January 26th, 2009, 12:39 AM	#16
2k3stanggt Regular 2003 Mustang GT slow Join Date: Jun 2008 Location: Hawaii Posts: 109 iTrader: 3 reviews	you guys know where the relay is located

Remove Advertisements Sponsored Links
Ford Mustang Forum Advertisement

Threads Similar to: Rear defrost broke
Thread	Thread Starter	Forum	Replies	Last Post
Classic "vents on defrost" problem	Atlus	General Tech	1	October 18th, 2008 09:23 AM
The classic "stuck on defrost" problem	Atlus	V6 Mustangs	7	October 9th, 2008 01:39 PM
Rear defrost is screwed	Roos85	99-04	15	July 19th, 2008 11:04 PM
AC comes out defrost under accel.?	drumvudu	2.3 Mustangs	2	June 20th, 2007 08:49 PM
Heater And Rear Defrost Not Working	slingblade05	5.0 Mustangs	0	November 18th, 2006 01:11 PM

January 26th, 2009, 12:56 AM	#17
qwik48r MM Fanatic alotta shit no fat girls fast Join Date: Jan 2008 Location: in the woods Posts: 3,681 iTrader: 1 reviews	I dont own a 99-04. owners manual.. if its a fuse, its the switch. __________________ mind your business what i drive... i'm on a fucking mustang forum. qwik's build

January 26th, 2009, 12:59 AM	#18
2k3stanggt Regular 2003 Mustang GT slow Join Date: Jun 2008 Location: Hawaii Posts: 109 iTrader: 3 reviews	aight sounds good thx again

All times are GMT -4. The time now is 11:46 AM.
Contact Us - Modded Mustangs : Ford Mustang Forums - Privacy Statement - Top
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company. Forum is powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.