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Car Warning Lights This
category contains featured questions as
examples. They relate to most vehicles.

Question: 1999 Crown Victoria mileage: 100,000. Battery light comes
on and lights dim. Alternator was tested and
it appears to be ok. Could something else
such as a wire be causing the problem? I
could replace the alternator to see if this
corrects the problem, but if there is
something less expensive to check first, I
would rather try that.
Answer: You said that you had the alternator tested but was
it tested for a failing diode rather that
just for voltage output. A failing
diode would cause the problem you described.
Question:
2003 Pontiac Grand Am mileage: 65,000. I got
the oil changed at about 3,000 or 4,000
miles. I don't recall exactly. The first oil
change is supposed to be sooner than the
others I understood. Now my car is at 6,500
miles and I have an idiot light on my dash
that blinks oil change all the time. I know
that isn't a big deal. The annoying part
is... whenever I start the car and get a few
blocks down the road, I hear this ding ding
ding! I'm ready to start clipping wires with
my nail clippers. Seriously, I used to be a
designer for one of the big three; I'm not
that stupid (the nail clippers!). Have you
heard anything about this most annoying
feature?
Answer:
The computer in most late model GM cars
keeps records of when service is due by
lighting the oil change light. The records
are based on driving habits. The frequency
of service depends on how many short trips
are taken verses long trips. Once the car is
serviced, turn the key on (engine not
running) depress the gas pedal to the floor
three times and the computer will reset.
Question:
1993 Dodge Stealth R/T 3.0 DOHC mileage:
130,000. My Stealth has multiple problems.
The ABS light is on continuously. The dealer
says he reset the computer, the speed
sensors are ok, and the hydraulics are ok.
When driving the car, the dealer says the
diagnostic reader keeps receiving many
codes. He suggests I replace the computer
for $1800 and cannot guarantee this will
solve the problem.
Answer: We would
suggest that you try scanning the abs system
yourself to check for trouble codes, replace
the failed wheel sensor and reassemble.
Recheck system clear codes.
Question:
1998 Chevrolet Camaro, mileage: 120,000. My
low-trac light is coming on in DRY
weather...dealer says it's probably a wheel
sensor. My husband can replace it if he
knows WHERE the wheel sensors are...at least
he 'thinks' he can depending on where they
are. He thinks it's a front left sensor...is
there a way besides connecting the car to a
computer to see which one it is? Can he put
a new one in and if it's not that one, put
back the old one and put the new one in
another place? Help...we don't want to spend
$300-$400 to have the dealer do it if George
can do it! Thanks...Sandy
Answer: The best way
to locate your problem is by scanning the
computer. This will tell you what circuit is
malfunctioning and the sensor to replace
that will fix it.
Question:
1999 Honda Accord, mileage: 113,000. When
starting my car lately my SRS (red light)
stays on and beeps longer than usual. What
does this mean? What do I need to do to fix
the problem?
Answer: The SRS light is a
safety restraint system (air bag). Have the
body control module scanned to locate the
stored fault code. Repair as needed.
Question:
1999 Ford Windstar XLT 4.0 mileage: 130,000
The digital odometer flashes error 3 when I
drive it. It still registers the amount of
miles, but it keeps flashing that error. I'm
not sure what it means and any help would be
greatly appreciated
Answer: Your car will flash
an error 3 when you have a problem with the
brake system. Therefore you need to scan the
ABS (brake system) for fault codes.
Question:
1999 Honda Accord, mileage: 90,000. The ABS
light stays on after 30 sec or so. This
happened before and the problem went away
after I added some Brake Fluid to the ABS
reservoir. Now it happens every time I start
my car. The Honda dealer told me there was
an error code #1 for leaking modulator and
suggested a replacement of my ABS module for
$1000. I am pretty sure the leaking they
were talking about was due to the spillage
of my brake fluid. I suspect a bad wiring or
sensor. Thanks in advance.
Answer: You may have a
faulty sensor on one of the wheels or
damaged wiring that goes to the sensor. If
all checks okay, you may have a bad ABS
module.
Question:
1999 Nissan Maxima, mileage: 97,000.
Hi! I think I'm having transmission
problems. I drive a Nissan 200SX
automatic, each time I get on the freeway
and drive 70 mph, the rpm will be about
3000. When I go over 70 mph, the rpms
will go over 3000 and then the battery and
brake lights will come on (flashing).
I can also duplicate this when driving at
lower speeds in city traffics, when I press
on the gas, the rpms will rev above 3000 to
4000, and then the battery and brake lights
will start flashing, until the rpms go down
below 3000. I think it's having
difficulty finding the right gear? I'm
just confused by the flashing battery and
brake lights and the rpms. I'm not a
car expert, as you can tell. Any help
would be appreciated!
Answer:
Check the alternator to make sure it is
functioning properly, especially at the rpm
range where you experienced the problem.
Question:
1997 Honda Accord 4 cyl mileage: 180,700.
I was driving my car on the highway and lost
all power when i pushed on the gas pedal.
A light on the dash came on. The dash
light had the letters prm fi. I pulled
to the side of the road and shut the car
off. I restarted the car and
everything worked fine for another 20 mile
and the same problem occurred. What
could it be? I hope you can
help. Thank you for your time.
Answer:
Scan your computer for trouble codes and
also check the distributor for excessive
wear.
Question:
1999 Mercedes C260 mileage: 99,000. I
recently had the ignition module, ignition
coil, and coil cover replaced. Since
then, I have had problems with the brake
warning light and the ABS warning light
coming on, usually just after I start the
car and disengage the emergency brake.
Could this have anything to do with the
ignition work I just had done (1 week ago)?
Answer:
There is no connection between the
work that you had done on the ignition
system and the warning light.
The “ABS” (antilock breaking systems) light
will “light” when there is a malfunction in
the braking system. The fault code is
then stored in the computer. The
computer must be scanned to retrieve these
stored faults to pinpoint the malfunctioning
component. Because the ABS light
indicates something is wrong, a trip to you
neighborhood automobile service center
sooner rather than later is recommended.
Your ABS system may not be functioning.

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