Nissan Repair/1988 Nisson Pathfinder Brake Lights
Otho wrote at 2008-09-27 00:10:43
There is also a slight chance for a broken or worn-out rubber pad plug which is inserted in the brake pedal arm at the place where the switch makes contact with the brake pedal arm. This should be checked first visually, and replaced if missing or worn out, as it will allow the brake arm to push the switch more completely in (same as screwing the switch further in.
ChasIV wrote at 2013-09-12 21:13:39
Repaired my daughter's pathfinder today! It was just like the
example on You Tube! It comes up with the same Google search-
"Pathfinder Brake Lights Stay On". In electronic terms the
switches are installed using the Normally Closed Contacts of
the switch. Meaning that the short most people refer to is
inside the switch. Only it isn't really a short in that sense.
It is supposed to be shorted through the normally closed
contacts. In other words it is making a good conection. There
is a pair of plugs that are installed in the two holes at the
top of the brake pedal assembly. The plugs are just slightly
bigger than 5/16" in diameter and slightly less than 3/8" in
diameter. If you don't clean your car too much you might find
the remnants of the plugs on the floor under the brake pedal.
Parts and pieces of the old plastic plugs. The plastic plugs
make physical contact with the plunger on the Brake Light
Switch and open the shorted or closed contacts inside the
switch. This basically turns the switch into a normally open
switch because this is the real normal state of the switch
(No Internal Connection Via the Terminals on The Switch) the
switch is not energized. When you depress the Brake Pedal you
are closing the contacts by allowing the plunger on the
switch, which is spring loaded, to pop out or move this makes
the contacts internal to the switch and completes a current
path for current flow through the filament in the bulb to
ground. There are two switches on some Pathfinders. Those
equipped with Cruise Control have a switch mounted on the
right of the same brake pedal that stops the operation of the
Cruise Control function by depressing the Brake Pedal. The
Left Switch is the one that controls the Brake Lights. The
Left Switch being the one closest to the Driver's Kickpanel.
Usually when the Brake Lights start staying on in a
Pathfinder there is nothing wrong with the switch. It is the
plugs, that energize it, that have finally deteriorated to
the point that they will no longer de-energize the Brake
Light Switch in the rest position of the Brake Pedal Arm.
You can check the operation of all the lights on your vehicle
single handedly in front of a business that has plate glass
windows. You can see your own reflection in them front view
or rear view by just pulling in and turning around and using
your rear-view mirrors. You can do it alone in broad daylight
too the only hard part is the Brake Lights and all you need
for that is a substantial stick wedged between the Brake
Pedal and the Steering Wheel. The daughter's plugs wore out
in 22 years. 1991 Pathfinder w/Cruise Control. No sign of
any plugs except parts and pieces on the floor.