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Understand the grounding problem re; dash lights flickering, needles jumping wildly, but what is the b pillar???? Obviously not a mechanic
While in motion or at idle, the lights in the cluster flicker, needles jumping (speedometer, gas, temp etc. Warning bells and lights on and off, radio goes out, engine rpm increases.
Re: understand the grounding problem re; dash lights...
The "B" pillar is the term used by the manufacturer for the front pillar where the windshield is attached. Most of the dash's components ground at the "B" pillar,driver or passenger.
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wow test the alternator next, 11 to 15vdc less is bad ALT(AT BAT TERMINALS LUGS)
find a shop that can do electrics.
keep and open mind.
say will not crank , not will not start or answers WILL BE WRONG
so it started and they did not once check all fuses and the alternator
if they replaced the ALT and did not remove the NEG lug from the battery then the blow up the 100amp huge alt fuse
making alt dead forever.
or the other 3 alt fuses blown.
find a real shop with real ASE techs,
also learn that ALT can short one of its huge internal 3 phase DIODE
and now the ALT I HUGE NASTY NOISE GENERATOR AND LAMPS FLICKER AND ALL COMPUTER IN THE CAR GO STARK MAD.
WE SCOPE THE ALT TO SEE THAT HUGE NOISE ON THE BATTERY.
BAD ALT i BET.
THE WORST FOR HE WORST.
OR BAD GROUNDS TO ALL THAT.
This intermittent fault sounds like a bad connection. Check the wiring harness under the dash for damage or loose connector plugs and then check the plugs going into the instrument cluster (some cars have inherently bad soldered joins on the pin connections that require re-soldering) As it's affecting multiple circuits, I'd check ground leads as well. Dirty or broken grounds cause all kinds of electrical issues.
Bad ground connection possibly . G - 203 ! Both radio an instrument cluster share ground 203 .
G203 In the I/P harness below the left side of the I/P near the A-pillar . Check to see if clean an tight connection .
Ouch, must be it doesn't like to get jumped. Wild guess, a "marginal" fuse couldn't take the jump. Check your fuse box for dash lighting. Other Dash lights ok? Any error codes? Possible the ECU (brain) didn't like the jump and now needs to be reset. Sometimes that can be done by disconnecting the battery overnight. Why did the car need a jump? I'd guess you have a "marginal" battery. Some Auto parts stores can help check your battery. And if bad replace.
Sounds like just a bad switch, replacing it should solve the problem. however, check the ground strap that is attached to the firewall to give all the body electrics a ground. they get dirty and need to be cleaned,
I would check the grounds for the BODY SECURITY MODULE. I think it is near the back of the cab, behind the driver. There is one ground on the cab panel and the other is on the driver A pillar, probably below dash, behind kick panel. The BSM interfaces witht he Autolamp.
black/light green wire on cab panel and black on A pillar.
2005 Caravan I had the same problem with my van gauges bounceing, headlights not comeing on when the switch was turned on.I took a day and downloaded a wireing diagram from dodge and studyed it.GROUND PROBLEM dodge have several ground conections to the body then there is one MAIN BODY GROUND.This is most likely your problem it is easy for any back yard mechanic to fix.This main body ground is located under your battery box.You will have to remove the battery and then the battery box becarful of the battery sensor that is mounted in the bottom of the box.Also there is a hose that you will have to disconnect but dont try to remove it from the box remove it from above the box.After you get the battery and box out you will see a threaded stud with a black wire conected to it this will be rusted because of no antioxide grease applyed.You will have to remove the nut and wire connector clean both and the stud with wire brush or sandpaper.Put antioxide grease or if nothing else some vaseline to keep it from coroading again.put back together and see if this dosent fix your problem.It has been six weeks for me now.good luck.dont forget that neg battery terminal is the first one to disconect and the last to reconect.
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