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#1
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Neon with tricky brake lights
Hi,
Here's a tough electrical problem. I have a 1996 Neon 4DR Highline. Here are the facts, and I present them this way because when I consider all of them I am not left with any faulty components to replace! 1. The L and R brake lights do not come on when the brake pedal is depressed. The center high-mount brake light does come on. (Therefore the brake switch is working) 2. The L and R running, turn signal, and hazard lights work normally. (Therefore the bulbs and wires to them work fine, as the same filament in the bulb is used for brake and turn) 3. All the fuses (at least in the underhood and driver's-door compartments) visually check OK. I have a Chilton's manual, and based on the wiring diagrams in there - the only remaining fault path would be a White/Tan wire running from where the center-mount brake light is spliced off to the Turn Signal/Hazard Switch. Alternatively, I suppose it could be an internal problem in the Turn Signal/Hazard Switch that isn't passing the current through. Does anyone have ideas on other possible causes of the fault? Anyone know where the white/tan wire gets spliced off or where that Turn Signal/Hazard Switch lives? I'd appreciate the help - this is driving me crazy and I'm stuck riding my motorcycle until I can fix it (which is fine until it rains). Thanks, Doug |
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#3
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(do_crev) writes:
> > I have a Chilton's manual, and based on the wiring diagrams in there - > the only remaining fault path would be a White/Tan wire running from > where the center-mount brake light is spliced off to the Turn > Signal/Hazard Switch. Alternatively, I suppose it could be an internal > problem in the Turn Signal/Hazard Switch that isn't passing the > current through. Winter is coming on; the Chilton's manual will make good fire-starting material. Get a real FSM... > Does anyone have ideas on other possible causes of the fault? Anyone > know where the white/tan wire gets spliced off or where that Turn > Signal/Hazard Switch lives? I'd appreciate the help - this is driving > me crazy and I'm stuck riding my motorcycle until I can fix it (which > is fine until it rains). By any chance, does the behavior change if you wiggle the turn signal stalk? My daughter's '95 Neon had some weird interactions between the brakes and turn signal that turned out to be the turn signal switch itself, which lives in the steering column, doesn't cost much, and is very easy to replace. -- Joseph J. Pfeiffer, Jr., Ph.D. Phone -- (505) 646-1605 Department of Computer Science FAX -- (505) 646-1002 New Mexico State University http://www.cs.nmsu.edu/~pfeiffer |
#4
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On Tue, 19 Oct 2004, do_crev wrote:
> 1. The L and R brake lights do not come on when the brake pedal is > depressed. The center high-mount brake light does come on. (Therefore > the brake switch is working) > > 2. The L and R running, turn signal, and hazard lights work normally. > (Therefore the bulbs and wires to them work fine, as the same filament > in the bulb is used for brake and turn) > > 3. All the fuses (at least in the underhood and driver's-door > compartments) visually check OK. Faulty combination switch (turn signal/hazard flasher/beam selector/etc) > I have a Chilton's manual Throw it away. It will cost you more money in car damage than a real factory service manual will cost to buy, even new. |
#5
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On Tue, 19 Oct 2004, do_crev wrote:
> 1. The L and R brake lights do not come on when the brake pedal is > depressed. The center high-mount brake light does come on. (Therefore > the brake switch is working) > > 2. The L and R running, turn signal, and hazard lights work normally. > (Therefore the bulbs and wires to them work fine, as the same filament > in the bulb is used for brake and turn) > > 3. All the fuses (at least in the underhood and driver's-door > compartments) visually check OK. Faulty combination switch (turn signal/hazard flasher/beam selector/etc) > I have a Chilton's manual Throw it away. It will cost you more money in car damage than a real factory service manual will cost to buy, even new. |
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