Question about 2005 Pontiac Grand Am

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No reverse lights on 2000 grand am or shift out of park lock

Jumper wire to green( +) @lower left back up light will light all. Volt meter sees ground on blk & green no power to wire. The selector switch on trans was replaced. fuse#42 has power. All fuses good. The trans will shift with the key on without pushing on the brake. Says in the manual backup lights are on the same circut.What should be tried next? What wire color goes from fuse box to the switch? Is the safety(button on the shifter) switch wired to the brake switch to blame? I want to fix the proper way and not bypass.

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  • vettewing Oct 04, 2009

    I fixed it. Traced green wire from reverse lights to the switch. Pink wire at the switch had no power. Pink to green, jumped, bypasses the switch. Fused power to pink and worked. Followed pink to the fusebox and the wire was cut. I soldered the wire back together and everything works great.


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Try disconnecting the plug off the reverse light switch (on the transmission) and bridging out the 2 terminals and then see if your revers lights work if they do replace the switch

Posted on Oct 01, 2009

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Plug trailer connector to 2000 expedition unly get running lights only no turn signals


If you have a 12 volt test light or volt ohm meter first verify #1 has continuity with chassis ground. Below is a picture how your vehicle is wired, It may just be fuses in your car. Easiest way to imbed the turn signal / brake light circuit wire color code is Green grass on right side of the road and yellow lines on left side of the road. An inexpensive 12 volt test light (looks like an ice pick with a wire with an alligator clip coming out the opposite end of the sharp ice pick end

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1 Answer

Crv only one brake light working


ever heard of the voltmeter. ?
a device the prevents guessing?
it's very simple to use, if yours is a DMM and that is confusing
use a walfart analog meter for $10 (retrograde meter)

so since one light works, that means the wires are bad.
when I say wires, that means the connectors too.

and btw the switch was good, after all it runs both lights.
my guess? is trailer wiring hacks, or collision damage caused.

if the dead lamp is 0v, the wire is cut.
if like 1v to 6v, its shorted. just enough to not blow fuse but lamp is very dim, did you look in the dark?

low voltage is called, VOLTAGE DROP. (on either side of lamp)
and is caused by 2 things, shorts, or resistance (corrosion)
and sadly you never said left or right side.
see the FSM. see the electric pages.
http://hondatech.info/downloads/Auto/Manuals/CR-V/

see page. 23-1 , index to elect.
then 23-84 brakes
then see them.
see the green-white wire, back aft? In USA we have silly 3rd light. do you>?
using the volt meter, measure the Green-white wire. (bad side)
if 12v?, brakes active, the ground to the lamp is open or the new lamp is DOA.
if the lamp tests good (use a battery), the ground is open to lamp.

if the wire reads 6v (low #), it's got a short. (or a rusty ground wire)
or the green wire is shorting to ground.
if you trace the wire to the other side if car, you will find the open cut wire or the ground out. I'm 100% sure. (grounds good)
if the lamp green has 12v, we measure the shell of the lamp to the body ground, metal, brakes active ! if not 0v, the ground to the lamp is bad. fix the ground.
very simple tests. all.
this is all with a $10 volt meter, it will not lie to you ever,. trust it.

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1 Answer

GEAR SHIFTER WONT GET OUT OF PARK TO OTHER GEARS 1997grand marquis


There is an electrical brake light switch under the dash, at the top of the brake pedal, near the steering column. This brake light switch is wired in series with the gear shift lever, which means if one goes bad or has a problem, the other does too. If the brake light switch isn't working correctly, it will not allow the gear shift lever to be moved from the Park position. You first have to remove the plastic cover under the dash that covers the steering column (it will pop loose when pulled on and some are tougher than others to pull off but go back easily) to get to where you can see the brake light switch and the plug-in that plugs into it. Next move the seat all the way back to give you more room, and tilt the steering wheel all the way up out of the way. That switch could be bad or the two wires going to the plug-in could not be making good electrical contact. I had this to happen to my 1997 Mercury Grand Marquis and seen it happen to several others that I fixed. To test if it's the brake light switch, unplug the plug-in that has 2 wires going into it that is plugged into to the brake light switch (you will need a flash light, a flathead screw driver, and a pair of pliers to make this job easier). Take a 3 or 4 inch length of heavy solid wire, remove a small amount of the insulation from both ends of the 3 to 4 inch solid wire and bend it into a "U" shape to make a jumper wire out of it. Plug one uninsulated end of the "U" solid wire into one side of the plug-in with the 2 wires running to it that connects to the brake light switch on the brake pedal, then plug the other uninsulated end of the "U" shaped wire into the other opening of that same plug-in that has the 2 wire running into it. Your brake lights should come on and stay on, even though you are not touching the brake pedal, nor is your key in the on position, and your gear shift lever should move to any gear you want when you turn your key to the on position. Be advised, your brake lights will stay on as long as the jumper wire is stuck into the plug-in and will run your battery down if left that way. If what I have just explained happens, you have a faulty brake switch. If it does not happen, one of the wires going to the brake light switch plug-in may not be making a good connection or it may be grounded. To see if it's grounded check all of your fuses. Check the fuses under the dash and the fuses mounted on the fender under the hood. If you find a blown fuse, replace it. If it blows the fuse again, you have a ground and you will have to trace down where the wire is grounded and fix it. A volt meter set for 12 volts will aid in this when tracing a wire that is grounded. Then re-try all of this again after you have found any place the wire may have been grounded and you have fixed it. Most likely it's 1 of the 2 wires not making a good connection in the plug-in that plugs into the brake pedal switch. This seems to be a fault with the 1997 Mercury Grand Marquis. I've fixed this problem on 4 different Mercury's in the past. I don't know if this happens to other models of Mercury Grand Marquis or the Ford Crown Vic's. Hope this helps. Good luck.

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1 Answer

2000 Honda Odyssey. The passenger side headlamp burned out and I replaced it, no issues two days ago. Battery was cranking slowly and terminals were corroded so I cleaned them. Last night in 15 degree...


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1 Answer

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