http://www.cadillacforums.com/forums Section for discussions in regards to electrical systems. en Sun, 22 Nov 2009 03:44:08 GMT vBulletin 60 http://www.cadillacforums.com/forums/images/misc/rss.jpg http://www.cadillacforums.com/forums http://www.cadillacforums.com/forums/electrical-technical-information/185350-third-brake-light-out.html Sat, 21 Nov 2009 21:33:30 GMT My 2003 CTS failed inspection due to a third brake light out. Dealer list price is $600....is this right? Anyone every replace this? Does the whole unit need to be replaced or can just the actual... My 2003 CTS failed inspection due to a third brake light out. Dealer list price is $600....is this right? Anyone every replace this? Does the whole unit need to be replaced or can just the actual light be done? THANKS! ]]> Electrical Technical Information RBYMKY http://www.cadillacforums.com/forums/electrical-technical-information/185350-third-brake-light-out.html http://www.cadillacforums.com/forums/electrical-technical-information/185133-electrical-problem.html Thu, 19 Nov 2009 02:01:19 GMT Ok here goes maybe someone will have an idea on where i can start on fixing this problem. My car (baby) 1995 DeVille my wife smacked up bad. I decided to have the car fixed (about 3k in damage) I... Ok here goes maybe someone will have an idea on where i can start on fixing this problem.

My car (baby) 1995 DeVille my wife smacked up bad. I decided to have the car fixed (about 3k in damage) I got the car back and all was good for 1 week and then the fan stop working. I returned the car to the place and they replaced the fan free of charge. Took them a week to get and they said they had to have it shipped in. When i got the car back i now notice that when i turn the car off and open the drivers door it no longer shuts the radio or puts the interior light on. I have to open one of the other doors on the car so the radio will go off and not kill the battery.

I looked on the door and i dont see a switch on the door jam like my ford used to have to activate this.

What bothers me is that it worked the 1st time they returned the car to me but now it does not

Where do i start the trouble shooting

Thanks in advance ]]> Electrical Technical Information bridgeway11 http://www.cadillacforums.com/forums/electrical-technical-information/185133-electrical-problem.html http://www.cadillacforums.com/forums/electrical-technical-information/184933-irc-u1000-please-help.html Mon, 16 Nov 2009 21:11:17 GMT im not sure if this was the right place to post this but all of a sudden im getting an IRC u1000 code what happend is i pluged in my iphone to the rca plugs in the harness that was made for me... im not sure if this was the right place to post this
but all of a sudden im getting an IRC u1000 code
what happend is
i pluged in my iphone to the rca plugs in the harness that was made for me to hook up a factory navi in my 2000 seville and once i had the iphone hooked up i unluged and removed the cd changer is it possible that i did somthing that oculd cause these u1000 code to pull up as curent i unpluged the rca plugs and cleanred the code and it still comes up as current
thank you ]]> Electrical Technical Information PupFromCleveland http://www.cadillacforums.com/forums/electrical-technical-information/184933-irc-u1000-please-help.html http://www.cadillacforums.com/forums/electrical-technical-information/184605-u1255-codes.html Thu, 12 Nov 2009 03:22:28 GMT I have a 99 deville that I just replaced the torque converter in, When I got her all back together it ran 5 minutes and quit , Theft system fault car may not start warnig was showing , also every... I have a 99 deville that I just replaced the torque converter in, When I got her all back together it ran 5 minutes and quit , Theft system fault car may not start warnig was showing , also every square in the shift indicator was lit. I checked the codes and every modual was throwing a u1255 code. I thought I was in for a nightmare . I stopped at a local garage after work and asked the owner if He could test the pcm if I brought it in , he asked me for the codes and when I told him that I had several u1255 codes he told me my problem was a short to ground on the buss wires that power the moduals. He told me to unplug the moduals 1 at a time until I found the one that put the codes out , and the short would be in the wire near that modual. I could not see why this would work. I went home and unplugged the abs modual first as I had had it apart ot take the trany out, The codes went away, I unwrapped the cable up about 5" and found a bare ground wire , wrapped it in tape put it all together and she runs without any codes.I was extremely happy! I took the guy a $5 for his advise , He told me he learned this from experience , not from a book. I thought this might be valuable information to any one who comes up with a bunch of u1255 codes ]]> Electrical Technical Information tpaisley http://www.cadillacforums.com/forums/electrical-technical-information/184605-u1255-codes.html http://www.cadillacforums.com/forums/electrical-technical-information/184585-navi-screen-wont-come.html Wed, 11 Nov 2009 23:37:37 GMT Yesterday my car battery died on me due to me not turning my car on... Anyways when I did get the car to start after receiving a jump my screen stays blank.(black) Anyone know what the problem could... Yesterday my car battery died on me due to me not turning my car on... Anyways when I did get the car to start after receiving a jump my screen stays blank.(black) Anyone know what the problem could be? I checked to see if it could be a fuse considering it worked yesterday. I couldn't find a fuse for it though. ]]> Electrical Technical Information DaLadizMan http://www.cadillacforums.com/forums/electrical-technical-information/184585-navi-screen-wont-come.html http://www.cadillacforums.com/forums/electrical-technical-information/184274-important-question-swapping-out-pcm.html Sat, 07 Nov 2009 21:46:07 GMT I have been having some problems with my 95 STS. I have been getting a lot hesitation and bogging and the fuel pump seems to be fine. I was told that my PCM could be faulty do to me having a bad... I have been having some problems with my 95 STS. I have been getting a lot hesitation and bogging and the fuel pump seems to be fine. I was told that my PCM could be faulty do to me having a bad heater core leak. Now I do know that i need to get a PCM with the same service number on it and take the PROM out of my old PCM and put it into the new one. Is there anything else I need to do? Any help would be appreciated, I've had this car for a month only and has been nothing but problems. ]]> Electrical Technical Information RRSTS http://www.cadillacforums.com/forums/electrical-technical-information/184274-important-question-swapping-out-pcm.html http://www.cadillacforums.com/forums/electrical-technical-information/184141-el-lamp-inverter-question.html Fri, 06 Nov 2009 00:48:53 GMT Is it correct that the 110v inverter would be splitting the voltage? I checked my wiring with a volt meter at the inverter and Im getting 50 volts out of each of the connections. I have two... Is it correct that the 110v inverter would be splitting the voltage? I checked my wiring with a volt meter at the inverter and Im getting 50 volts out of each of the connections. I have two connections outputted to the lamps, one for each side, and one connecter with the input voltage. Input reads at 11 v, and output reads at 50 a piece. Is this correct? ]]> Electrical Technical Information caddydave2001 http://www.cadillacforums.com/forums/electrical-technical-information/184141-el-lamp-inverter-question.html http://www.cadillacforums.com/forums/electrical-technical-information/184098-swapping-bcm-solves-problems.html Thu, 05 Nov 2009 06:30:33 GMT I swapped out the BCM in my '90 DeVille and the the "dash gremlins" are gone. No more lights blinking off and on and clicking relay. HVAC and Fuel [COLOR=blue !important][COLOR=blue !important]Data [COLOR=blue !important]Center[/color][/color][/color] seem to be working again!
Thanks to all on this fine site for their input.
Regards,
Matt ]]> Electrical Technical Information mdogg1950 http://www.cadillacforums.com/forums/electrical-technical-information/184098-swapping-bcm-solves-problems.html http://www.cadillacforums.com/forums/electrical-technical-information/183937-infamous-u-1300-a.html Tue, 03 Nov 2009 17:21:21 GMT So I've had several issues in the last month with my 98 concours. Last year I did the water pump crossover gaskets. While in there I guess I didnt tighten down the main pcm ground which in return damaged the pcm. Got that figured out after "no pcm data" on the DIC, 2 pcms and still the same problem. Shop found the ground and all is well with the pcm. I changed the hearter core earlier in the month had to remove the ACM to get the heater core out. Now Im having the same issue with RSS computer as I did with the PCM. The RSS module is cycling air ride compressor on and off...go to pull codes and I have serveral modules with U1300 codes, when its time to read the codes to for RSS module it says no "RSS data" However I do get data with the key in just the on position motor not running. The climate control goes wacky and the fuel gauge drops to empty. I did have to replace the key pellet reader in the ignition because of broken wires. Anything would help me out greatly here. I have a guy at my shop that really wants to fix this problem! ]]> Electrical Technical Information fristim http://www.cadillacforums.com/forums/electrical-technical-information/183937-infamous-u-1300-a.html http://www.cadillacforums.com/forums/electrical-technical-information/183897-do-relays-go-bad-one-ticks.html Tue, 03 Nov 2009 02:50:21 GMT I found the source of the ticking sound coming from the glovebox area of my '90 DeVille. I could reel the relay pulsing when it "ticks". The ticking sound corresponds to the clock, HVAC, and Fuel Data Center lights flashing off and on.
This relay has a mini-wiring diagram on it; circuits 30, 85, 87a, 87, and 86.
Can anyone identify these circuits? Is this relay a dealer-only item? Expensive to replace?
Thanks in advance.
Matt ]]> Electrical Technical Information mdogg1950 http://www.cadillacforums.com/forums/electrical-technical-information/183897-do-relays-go-bad-one-ticks.html http://www.cadillacforums.com/forums/electrical-technical-information/183844-switch-prom-my-replacement-bcm.html Mon, 02 Nov 2009 16:15:21 GMT I have located a BCM from a '91 DeVIlle to replace the bad one in my '90 DeVille. The part nos. are the same: 16130754

Question: Do I have to swap my '90 PROM into the replcement '91 BCM?

Thanks!
Matt ]]> Electrical Technical Information mdogg1950 http://www.cadillacforums.com/forums/electrical-technical-information/183844-switch-prom-my-replacement-bcm.html http://www.cadillacforums.com/forums/electrical-technical-information/183833-wiper-delay-switch.html Mon, 02 Nov 2009 12:36:31 GMT I have a 88 fleetwood brougham and I think I need a new wiper switch. The delay doesn't work anymore...I only have 1 speed...sometimes slow sometimes FAST sometimes doesn't want to shut off. I went to the dealer and the switch is available...for 250$ So before I do just want to make sure that it's the switch. Anyone have any experience with this? Thanks John ]]> Electrical Technical Information tinnokkr1 http://www.cadillacforums.com/forums/electrical-technical-information/183833-wiper-delay-switch.html http://www.cadillacforums.com/forums/electrical-technical-information/183793-90-deville-tick-sound-near-glovebox.html Sun, 01 Nov 2009 22:31:44 GMT My '90 DeVille has a ticking sound coming from the glovebox area, and the radio, and HVAC lighs are acting erratic.
Is this the BCM? BodyControlModule? How do I remove it?
Thanks in advance!
Matt ]]> Electrical Technical Information mdogg1950 http://www.cadillacforums.com/forums/electrical-technical-information/183793-90-deville-tick-sound-near-glovebox.html http://www.cadillacforums.com/forums/electrical-technical-information/183557-1999-cadillac-deville-wiring-diagram.html Thu, 29 Oct 2009 16:03:31 GMT Looking for a wiring diagram for my 1999 Cadillac Deville. Need to find which wire is the speed sensor. Installing navigation in my car and I dont know which wire is the speed sensor. Any and all... Looking for a wiring diagram for my 1999 Cadillac Deville. Need to find which wire is the speed sensor. Installing navigation in my car and I dont know which wire is the speed sensor. Any and all help would be greatly appreciated. ]]> Electrical Technical Information dakid6945 http://www.cadillacforums.com/forums/electrical-technical-information/183557-1999-cadillac-deville-wiring-diagram.html http://www.cadillacforums.com/forums/electrical-technical-information/183536-illuminated-vanity-mirrors-driver-side.html Thu, 29 Oct 2009 04:28:13 GMT Hi, I own a 1980 Cadillac Coupe and today the driver side illuminated visor doesn't work. It used to fine with no effort then when I flip the cover the lights wouldn't come on unless you push up more on the cover (once open) then it will but today I did that and no more lights? I haven't check the bulbs yet but the passenger side works fine, thinking if one side goes out the otehr will. If the bulbs check out OK, what else could it be?
Thanks guys.... ]]> Electrical Technical Information 1980coupe http://www.cadillacforums.com/forums/electrical-technical-information/183536-illuminated-vanity-mirrors-driver-side.html http://www.cadillacforums.com/forums/electrical-technical-information/183468-lights-dim.html Wed, 28 Oct 2009 06:58:01 GMT Hows it going? I have a lighting problem I could use some help with. When any switch, high beam,seat controls, windows, horn, you name it my lights go dim. If I have the criuse control on (when it... Hows it going? I have a lighting problem I could use some help with. When any switch, high beam,seat controls, windows, horn, you name it my lights go dim. If I have the criuse control on (when it works:banghead:) and I run the windows up or down it kick off my criuse.??? Any help would be great. John ]]> Electrical Technical Information 77-79 Cadillac http://www.cadillacforums.com/forums/electrical-technical-information/183468-lights-dim.html http://www.cadillacforums.com/forums/electrical-technical-information/183380-cruise-control.html Tue, 27 Oct 2009 06:08:45 GMT This is my first time. I have 77 sedan deville with a criuse control problem. Sometimes it sets fine other times it sets and speeds up and up till you hit the brake. Other times I set it and it... This is my first time. I have 77 sedan deville with a criuse control problem. Sometimes it sets fine other times it sets and speeds up and up till you hit the brake. Other times I set it and it kicks off, some times it will set at all. I had this problem for years nobody knows what to do. Any help would be great. John ]]> Electrical Technical Information 77-79 Cadillac http://www.cadillacforums.com/forums/electrical-technical-information/183380-cruise-control.html http://www.cadillacforums.com/forums/electrical-technical-information/183326-97-deville-stereo-amp-all-time.html Mon, 26 Oct 2009 19:21:02 GMT Hi, I have a 1997 DeVille. The car wouldn't start due to dead battery. When I got it going, I discovered that the stereo amplifier stays on after the ignition is off, and after the door is opened (which normally shuts off the accessories).
Can someone tell me what might cause this, how to repair, and where the amp is located? Thanks! ]]> Electrical Technical Information jeffhaz http://www.cadillacforums.com/forums/electrical-technical-information/183326-97-deville-stereo-amp-all-time.html http://www.cadillacforums.com/forums/electrical-technical-information/183129-no-vaccums-pressure-heater-control-hard.html Fri, 23 Oct 2009 20:47:23 GMT i have a 94 cadillac deville that ive put alot of money into but on thing i cant seem to figure out is i have no vaccum pressure to control my vent system in the car and most times it starts hard.... i have a 94 cadillac deville that ive put alot of money into but on thing i cant seem to figure out is i have no vaccum pressure to control my vent system in the car and most times it starts hard. first the vaccum pressure thing.... everything is connected and nothing is missing... i changed the heater vaccum motor control but no change... i noticed there is a air canister on passenger side wheel well and also another air line going to so type of vaccum pump with alse is interconnected to throttle. id like to get this fixed but i can seem to find a solution then to just replace everything one by one. i also only get heat on the passenger side of car.
no for the hard starts... i usually gotta flick the key a few times along with some gas to get it started... ive changed fuel filter, plugs, wires, distrubuter cap and rotor and no change. used Sea Foam and other carb and engine products... nothing. my gas milage is reallyu starting to dip to. my old mechanic boss thinks is the fuel injectors but ive heard other things to. i would liek a god sugestion. i dont with to spend 1000 more because i would like to sell it next winter because i have a sts now. im greatfull for help and can also email me at ags_garza@hotmail.com ]]> Electrical Technical Information mexi_lac920 http://www.cadillacforums.com/forums/electrical-technical-information/183129-no-vaccums-pressure-heater-control-hard.html