Brake lights wont shut off...
#2491435
05/03/18 12:51 PM
05/03/18 12:51 PM
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Joined: Aug 2008
Posts: 1,568 Omaha, Nebraska
Scott Carl
OP
pro stock
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OP
pro stock
Joined: Aug 2008
Posts: 1,568
Omaha, Nebraska
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...And tail lights wont come on. 74 Challenger. I put a new switch in for the brakes because the car sat in a flood following a hurricane in '97 while the car was in North Carolina. Fresh water flooding, However, due to rain. No saltwater as far as I can tell, but switch was visibly corroded due to moisture inside. "New" one is several years old now, but I'm fairly sure, dry. Car has been in Nebraska since '05. It was working for a few minutes last night, but as we were wrapping up for the night, I notice they were still on. How do they work? Normally un-grounded until brake is pushed? Or??? I (or I should say, Grandson ) tried un-hooking one wire, then the other, then both. Lights still on. They flicker when turn signal is moved but they don't work either. Assuming bad flasher(?) As for the taillights, aren't they on a fuse?? I didn't see any bad ones but didn't see one marked as taillights. Headlights do work. Ideas? Thanks, Scott
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Re: Brake lights wont shut off...
[Re: Scott Carl]
#2491497
05/03/18 02:31 PM
05/03/18 02:31 PM
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Joined: Jan 2003
Posts: 21,073 Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,073
Niles , Ohio
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Flasher wont affect them except maybe the 4 way but then frts would be on also.Sounds like turn signal switch.Flood cars are a pain.Rocky
Chrysler Firepower
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Re: Brake lights wont shut off...
[Re: Scott Carl]
#2491583
05/03/18 04:48 PM
05/03/18 04:48 PM
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Joined: Jan 2003
Posts: 21,073 Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,073
Niles , Ohio
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Like I said if emergengy flashers the frts should be on also as they are connected thru that wiring.Either the TS switch or flood damage.Rocky
Chrysler Firepower
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Re: Brake lights wont shut off...
[Re: Scott Carl]
#2491692
05/03/18 09:28 PM
05/03/18 09:28 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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Hello Scott. I'm always glad to help my Omaha brother! Tailights (small filament(s) in the 1157 bulbs) originate in the HL switch (1 wire) then go down to the connector behind the DR kick panel & from there rearward. Go in there & jump 12V to that connector to see if the open is upstream or downstream. brake lights originate in the fuse box then to the brake light switch via a pink wire (think hot pink) then the white wire from the brake light switch goes to the TS harness (I'm rusty on how the E flasher is wired). But with the TS stalk in neutral there should be continuity between the white wire & 2 respective (out) wires to the rear pass/dr brake lights (large filaments in the 1157 bulb(s). www.mymopar.com will have wireing diagrams for you. EDIT taillights go from the HL switch to the fuse box then to the kick panel
Last edited by RapidRobert; 05/03/18 10:41 PM.
live every 24 hour block of time like it's your last day on earth
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Re: Brake lights wont shut off...
[Re: Scott Carl]
#2508679
06/15/18 01:40 AM
06/15/18 01:40 AM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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this might be easier to do: start pulling fuses one at a time & see if that shuts em off.
live every 24 hour block of time like it's your last day on earth
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Re: Brake lights wont shut off...
[Re: RapidRobert]
#2508954
06/15/18 03:20 PM
06/15/18 03:20 PM
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Joined: Jul 2011
Posts: 957 Chicago
PurpleBeeper
super stock
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super stock
Joined: Jul 2011
Posts: 957
Chicago
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this might be easier to do: start pulling fuses one at a time & see if that shuts em off. I am with rapid on this one. If you've pulled the wire off the brake light switch that feeds the brakes power, then somewhere in the wiring, another circuit that's hot all the time (assuming brake lights are on without the key in the "on" position), then some other circuit is giving it power.... an "always hot" circuit. That narrows it down some. Step #2, pull "always hot" fuses like Rapid suggests which narrows it down more. Step #3 maybe take a look at the big (6-prong?) plug, behind the driver's kick panel, that leads back to the tail lights. If you unplug it & the brake lights go out, then it has to be one of those circuits crossed. While unplugged, check to see which one(s) is hot and you're narrowed it down even further......one of those hot wires must be crossed with the brake light somewhere.
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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Re: Brake lights wont shut off...
[Re: stumpy]
#2508989
06/15/18 04:32 PM
06/15/18 04:32 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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Yes the brake lights are always operational even with the key off. On the TS switch/harness, with the stalk in neutral at the column half of the pull apart harness there should be continuity from the "in" wire from the white wire in the other half of the harness coming downstream from the brake light switch to the (2) "out" wires in the harness to the pass & drivers rear brake light(s), large filaments. Grab your meter & ALWAYS a good idea to pull a batt cable BEFORE switching the meter to "ohms"
live every 24 hour block of time like it's your last day on earth
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Re: Brake lights wont shut off...
[Re: Scott Carl]
#2509054
06/15/18 06:54 PM
06/15/18 06:54 PM
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Joined: Dec 2003
Posts: 10,938 Spokane Valley, WA
Big Bad Bee
I Live Here
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I Live Here
Joined: Dec 2003
Posts: 10,938
Spokane Valley, WA
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Well I went ahead and put a new signal switch in and I now have working turn signals. Taillights also seem to be working. However, I still have brake lights on all the time. I disconnected the wire from the brake light switch that powers the lights through the turn signal switch and both, 4-way and turn signal flashers as well as the horn relay thinking if any of them were bad they might be shorting power to the lights. No joy! Brake lights still on. What the hell is powering these lights?? I've disconnected any possible source! Haven't I? 1. If you've pulled the white wire from your brake pedal switch, there's no way in hell you are looking at power coming from the brake circuit. You are seeing a steady blinker/flasher circuit signal. 2. Now that you've pulled your blinker and flasher cans and your brake pedal wire, what happens when you throw your blinker switch? 3. You said your blinkers were working. Just in front? or are the bright filaments in the rear actually going on and off?
I’m listening.
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Re: Brake lights wont shut off...
[Re: GMP440]
#2509406
06/16/18 06:46 PM
06/16/18 06:46 PM
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Joined: Aug 2008
Posts: 1,568 Omaha, Nebraska
Scott Carl
OP
pro stock
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OP
pro stock
Joined: Aug 2008
Posts: 1,568
Omaha, Nebraska
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Check the brake light switch. Had this happen to me years ago with brake lights staying on. If you have the push-in style brake light switch, the switch plunger could be loose and not retracting back because the weight of the brake bracket is resting on it causing the switch to keep activating the lights. I fixed this by using a heavy duty switch that is adjustable. When the switch is installed it can be screwed in and out in the mounting bracket bringing the switch closer or further away from the from the brake bracket. In my case, I rotated out the switch making it further away from the bracket which solved the problem.
I thought about this but I've disconnected the switch
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Re: Brake lights wont shut off...
[Re: Big Bad Bee]
#2509408
06/16/18 06:49 PM
06/16/18 06:49 PM
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Joined: Aug 2008
Posts: 1,568 Omaha, Nebraska
Scott Carl
OP
pro stock
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OP
pro stock
Joined: Aug 2008
Posts: 1,568
Omaha, Nebraska
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Well I went ahead and put a new signal switch in and I now have working turn signals. Taillights also seem to be working. However, I still have brake lights on all the time. I disconnected the wire from the brake light switch that powers the lights through the turn signal switch and both, 4-way and turn signal flashers as well as the horn relay thinking if any of them were bad they might be shorting power to the lights. No joy! Brake lights still on. What the hell is powering these lights?? I've disconnected any possible source! Haven't I? 1. If you've pulled the white wire from your brake pedal switch, there's no way in hell you are looking at power coming from the brake circuit. You are seeing a steady blinker/flasher circuit signal. 2. Now that you've pulled your blinker and flasher cans and your brake pedal wire, what happens when you throw your blinker switch? 3. You said your blinkers were working. Just in front? or are the bright filaments in the rear actually going on and off? Front valance is off right now so no front TS. Will check for signals
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