Question about 1993 Pontiac Firebird

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What would cause all the lights in the left rear to be dim compared to the right side? All bulbs are new. Thanks

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You have lost the ground for those bulbs, look for a broken wire in the harness or where ever it grounds the lights, i see this all the time body ground wires corrode etc.

Posted on Apr 26, 2010

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Left bleaker and break light not working. Turn signal works bleaks faster than right side.


Has the vehicle been in an accident on the left rear side. First check the bulb to be sure it is not defective, trade it out with the side that works properly to test. If the bulb works well then My thought are you may have a shorted wire. The turn signal flasher works by heat build up within the flasher the heat is caused by the load of the bulbs, the load heats the metal spring causing it to open the circuit then as quickly as it cools down the circuit closes again lighting the bulbs.
There is also a possibility of a defect in the turn signal mechanism on the steering column. The turn signal switch on many models does three different things on many models that use the same bulb element / or bulb for brake and turn on rear of vehicle. It controls the circuit for brake light by sending power both left and right side rear when turn signal is in neutral position then when turn signal is in left turn the switch cancels brake light power to left side rear and supplies flasher power to left side while maintaining brake light supply to the right side rear, and so on opposite when the right turn is chosen on turn signal switch. The turn signal indicators on the dash normally run off the same circuit as front turn signal bulb only which is also controlled by turn signal switch. Front has turn signals but no brake light.
I think there is an additional load on the left side rear turn circuit and it could be either a wire that is shorted or the turn signal switch if the same bulb element is used for both functions.
Often times if trailer lighting is connected the flasher will also blink a little faster because of the extra load of additional bulbs.

Feb 15, 2015 | Cars & Trucks

1 Answer

Why would running lamps quit, left headlight is very dim DRL light on dash flashing?


Have your alternator checked yet? Your alternator is what actually powers all of your devices and lights when the car is running. When it is failing it will cause lights to dim. Checking connections, fuses and your alternator should lead you to a good start! Good luck!

Nov 12, 2014 | Cars & Trucks

1 Answer

When I turn on my headlights the left turn signal indicator comes on


If it is coming on,But not as bright as if you were using the turn signal,
It is a bad ground wire at one of the parking light bulbs, either the left front one or the left rear one. Notice your right side bulbs to see how many bulbs and compare it to the left side.

Jan 29, 2014 | Cars & Trucks

1 Answer

I came to this project in the middle so I am not sure this a pre existing problem. What I have is a left turn signal very dim while the right is normal, gas gauge shows over a quarter full yet the low...


Check the front and rear turn signals on the left. If both are just as bright as the right turn signals, then the dim bulb is isolated just to the dash. Possibly someone replaced the bulb at one time with the wrong rated bulb. A steady dim bulb doesn't sound like a loose ground. It would probably be going in and out or flickering, and just that one side would not have a separate ground. High resistance in a wire (like broken strands)or a connection could cut the current and cause a dim bulb. If the whole left side is dim, both the dash and the signaling bulbs, start looking for high resistance in that side of the circuit. To thoroughly check it out, probably need a volt meter

Oct 17, 2013 | 1983 Cadillac DeVille

2 Answers

\1991 geo metro dim headlight pass side


in low beams or high or both?
that is caused by:
1: bad held lamp. old lamps can go dim.
swap left and right, if dim follows bulb, bingo weak bulb or wrong type bulb. buy matching blubs (same brand and P/n)
2: bad wiring to lamp. damaged wires, or connectors to same.
4: bad combo switch. (if low beams)
5: bad fuse or holder, corrosion , to either.
head lamp fuses. there are 2. left and right.
6: hackers, many hackers put in wrong lights. inspect it.

Sep 30, 2013 | 1991 Geo Metro

1 Answer

2003 Jeep liberty right front turn signal


why skip RR lamp? what does IT DO? be like 1st 1st look.
dim, out, fast?

the rapid is talking to you
it means current is wrong,
shorted, or open lines. to the right.
its the wiring
if the bulbs are like 1157 brass base bulbs
why not replace them first , they can short inside,
asking online for guessing is silly, why listen to 10 examples for this.
but is cut wires.
shorted wires.
keep i mind the blinker asks funny for both opens and shorts
its a feature, that.
low current or too much.

the acid test is connect 2 TEST bulbs in parallel to the multi-function switch output right side,
blinks ok now, bingo bad lamps or bad wiring, from there to the right side.

if the hazard fails you never said????
if rigth front is dim or dead the bulb is blown or shorted
if new bulb there , then the wires are shorted.
to it.
the only help on line worth squat is how to test and use your meter.
you can, check for voltage
you can check continuity on that line (its just 1 wire)
and check for shorts on that wire to ground (lamps pulled right side to do that, lamps read 0 ohms cold)
look for collision damage RF? behind lamp sockets?
be first.
in my book.
looking is always first. sure.


I have your SM book open now, chapter 8w-50
the haz/blink module has just 2 pins, left and right out.
pin 3 on the module runs front and rear blinks, (a fact to know)
RF is BR/RD, brown -red stripe?
all comments USA on USA forum. USA car.
ok?

the right side lamp (sidemaker) only blinks turns if parks ARE oFF

Id try 2 new blinker lamps front and 1 rear.
that be first. or test the lamp on a battery , and no not get burned fingers hot wring a shorted lamp.

wish i knew
what rear did
and what both did on HAZ
out, dim or to fast.

Mar 23, 2017 | 2003 Jeep Liberty

1 Answer

Rear turn signal does not work


If the indicators on the dash are staying lit all the time, it is because you likely have a bad ground to one of your running lights, causing the running lights to ground through the turn signal circuits. This is often caused by either a bad socket assembly at one of the bulbs or an incorrect bulb is installed in one of the sockets. You need to check FRONT and REAR lights to see which one is not working correctly. Also check the running lights and marker lights on BOTH sides of the vehicle. There will be SOMETHING that will not look the same from one side to the other if the left side is working correctly and the right side is not. Please keep in mind that you cannot use the right REAR turn signal without also using the right FRONT turn signal. The problem could be at EITHER end.

Dec 26, 2011 | 2001 Chevrolet Venture

1 Answer

Brake light problem Corolla 97


the tail light and brake lights are working from double contact bulbs. check the grounding, you dont have enough ground from one of the bulbs

May 30, 2009 | 1997 Toyota Corolla

1 Answer

Left turn signal, when on, causes lights to flash on dashboard


one of the lights has a ground fault, likely the ground wire is broken or badly corroded. so it could be either light on the affected side, check both front and rear light sockets for a ground wire or strap.(usually a black or green wire)

Apr 15, 2009 | 2002 Chevrolet Malibu

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