1. Home
  2. Nissan Autos
  3. Does anyone know how the brake light circuit on a 1986 Stanza works?

Does anyone know how the brake light circuit on a 1986 Stanza works?

Hi,

I have a 1986 Stanza that has brake lights that are always on. When the brake pedal is NOT pressed, it presses a switch and the switch is closed. So, when the brake pedal is NOT pressed, the switch is closed and the lights should be off. I've disconnected the switch to try and test it. Given that the switch is normally closed and the lights should be off, I would expect the lights to be on when the switch is open. The lights are on no matter what, even if I close the two wires manually with a wire. Given that NC=Lights Off and NO=Lights On, there must be another electrical device switching the lights on or off. A relay or something, does anyone have the repair manual for this? Does anyone know where I will find this?

Thanks,

Alan

Reply to
SA Dev
Loading thread data ...

On 3/24/2005 12:17 PM US(ET), SA Dev took fingers to keys, and typed the following:

I don't have a 86 Sentra, but in all the vehicles I have ever owned, the brake switch was always off until the brake pedal was depressed which pushed the button in and lit the brake lights. Are you sure the button is not stuck in?

Reply to
willshak

Hi Bill,

Yes, you are right. I didn't see that there are two switches on the brake pedal, one for the cruise (which was the one I was looking at) and one for the stop lights. I was troubleshooting the wrong switch. Who would think that both of the rubber contact stoppers for each switch would dryup and crack to pieces at the same time!

Thanks for the help!

SA Dev

Reply to
SA Dev

On 3/25/2005 7:59 AM US(ET), SA Dev took fingers to keys, and typed the following:

Well, it's a good thing that you found that extra switch, because I didn't know that the cruise control had a separate cutoff switch on the brake pedal (I don't have CC on my 97 PU). It would seem to me that the one brake light switch could serve to light the brake lights and shut off the cruise control, if set.

Reply to
willshak

Hi Bill,

Yeah, I was pretty surprised when I finally found it, but everything sure made more sense when I did. I agree that it seems a little crazy to have two switches when one could do it. I guess I should have tried to put the little pieces of dried of plug back together and I would have discovered there was two of them instead of just one...

Thanks,

SA Dev

Reply to
SA Dev

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.