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Car Forum / Nissan / Nissan Cars / April 2005Does 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 On 3/24/2005 12:17 PM US(ET), SA Dev took fingers to keys, and typed the following: >Hi, > [quoted text clipped - 14 lines] > > 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?  SignatureBill Hi Bill, > 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? 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 On 3/25/2005 7:59 AM US(ET), SA Dev took fingers to keys, and typed the following: >Hi Bill, > [quoted text clipped - 15 lines] > >SA Dev 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. SignatureBill Hi Bill, > 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. 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 > Hi Bill, > [quoted text clipped - 13 lines] > > SA Dev Cheap fix is to tape a penny over the hole. If it doesn't go off, just keep stacking on pennies until it does. Scott B. '89 240sx '84 720 KK 4x4 |
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