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Cadillac DeVille Electrical/Lighting

143 messages,  Last post on Sep 14, 2008 at 2:26 AM

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What is this discussion about? Cadillac DeVille, Lights, Electrical, Sedan

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#64 of 143 If you can solve this, you are a Cadillac god. by dtstl Apr 22, 2007 (1:17 pm)
2000 CADILLAC DEVILLE DTS This is a complicated discription of my problem, so I'll jump right into it. As you read this, keep in mind that my back-up lights NEVER work.   My brake lights work properly when the headlights are off. All three of them come on, and no bulbs are out.   With the headlights on: When I turn my headlights on, the third brakelight (above the license plate) does not work. The license plate lights are extremely dim, not really illuminating the license plate at all. The light-up pattern of the taillights is different also. The entire taillight is lit, except for the lower inside quarter of each taillight (not applying the brakes). When braking, they light up properly, and they blink properly with the blinker on. If I disconnect the third brakelight, the normal taillight pattern comes back (a thin stripe on the outside edge of each taillight), but all other problems remain. The trunk courtesy light is always dim. When it is removed, the license plate lights go off. The license plate lights also go off when the trunk release is disconnected.   It seems to me like the trunk is not getting the proper voltage to carry all the lights.   POSSIBLE SOLUTIONS: 1. Replace the wiring harness in the trunk (Grounded by the left taillight) 2. Replace the headlight switch 3. Replace the dim bulbs and see what happens.   Also, could the traction control be carried on the same wiring through the trunk? Because when this started, the yellow traction control light comes on in the instrument panel periodically. I can't pinpoint what is triggering it though. When that light is on, I cannot manually disengage the traction control with the button on the center console. This could be a separate problem though.   Can anyone help me, or direct me to someone who can? The car can't pass inspection without the third brakelight and backup lights. Replies to this message: bolivar (Apr 28, 2007 1:37 am) okko1 (May 08, 2007 8:23 pm) okko1 (May 10, 2007 3:59 pm) meyejs (Sep 07, 2008 11:02 am)
#65 of 143 Re: If you can solve this, you are a Cadillac god. [dtstl] by bolivar Apr 28, 2007 (1:37 am)
Replying to: dtstl (Apr 22, 2007 1:17 pm) Sounds like a ground problem in the rear light circuits. Replies to this message: okko1 (May 08, 2007 8:23 pm)
#66 of 143 Re: help please..... [caddipimp] by mbouchard May 05, 2007 (9:35 am)
Replying to: caddipimp (Apr 10, 2007 4:45 pm) I have a 99 caddie in the shop now. Electrical problem with power being drained overnight, or if car left sitting for more than 8 hours. Sometimes the trunk and gas cover pop open when car is started.   I'm at a loss as to what could be wrong. Have you received any good directions what to do with your problem? I won't drive until I am sure the problem is fixed. Replies to this message: etbartley (Jul 24, 2007 11:29 pm) smilingjoe (Jul 25, 2007 11:24 am) bolivar (Jul 25, 2007 1:23 pm) etbartley (Sep 04, 2007 6:25 pm)
#67 of 143 Seville 1991 INJ fuses keeps popping.. by himi May 08, 2007 (11:07 am)
Hi,   I´m new here so sorry if I´m posting in wrong forum.   I own a Seville 1991 V8. There are two fuses under the hood named INJ (Probably Injection?) of 7,5 A each. One of them are very often popping which makes the engine only perform 50% of it´s capacity according to my experience.   Any ideas of where to start analysing the problem?   Kind Regards Himzo
#68 of 143 Re: If you can solve this, you are a Cadillac god. [bolivar] by okko1 May 08, 2007 (8:23 pm)
Replying to: bolivar (Apr 28, 2007 1:37 am) would agree sounds like ground problem see the same thing in trailer lights. will likely be wire harness or light board contaminated with water check lense some times evidenced by green color
#69 of 143 Re: If you can solve this, you are a Cadillac god. [dtstl] by okko1 May 10, 2007 (3:59 pm)
Replying to: dtstl (Apr 22, 2007 1:17 pm) the more you tell the more it sounds to me like that wire harness is cut or pinched somewhere have you had the seats out or installed anything in the truck
#70 of 143 Problems with my 92 Cadillac Deville by shemika May 10, 2007 (11:24 pm)
I got new starter put on two days ago and now it wont turn over at all. I was told it could possibly be aneutral safety switch. could this be true and if not what do you think it is?
#71 of 143 Battery not charging in 2000 DeVille by smilingjoe May 11, 2007 (11:27 am)
The battery is not charging. The mechanic has taken the alternator apart and found all parts are working, then re-installed; yet, it does not charge the battery. The batttery is o.k. This is a Cadillac 2000 DeVille with the Northstar engine and only has 65,000 miles. Any help would be appreciated. Replies to this message: okko1 (May 16, 2007 4:38 pm) smilingjoe (May 18, 2007 1:01 pm)
#72 of 143 Re: Battery not charging in 2000 DeVille [smilingjoe] by okko1 May 16, 2007 (4:38 pm)
Replying to: smilingjoe (May 11, 2007 11:27 am) the alternator is internaly regulated if he did a bench test and it showed a 14 volt 70 amp cycle may be 12 volt source may have a problem some models have inline fuseable links some have charging system relays and fuses check these Replies to this message: smilingjoe (May 18, 2007 1:01 pm)
#73 of 143 Re: Battery not charging in 2000 DeVille [okko1] by smilingjoe May 18, 2007 (1:01 pm)
Replying to: okko1 (May 16, 2007 4:38 pm) Thank you. Will have mechanic check it.

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