Question about 2000 Pontiac Sunfire

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Burning thru multi-function switches

Hi...I'm having a recurring problem with the multi-function switch. It's a 2000 Sunfire with the 2.2, cruise control and AC. In the last 3-4 years, I've had to replace the multi-function switch 5 times now. It'll work fine for a while, and eventually, without fail, i'll turn the headlights on to find that only the daytime running lights are on unless i shim the switch forward with some paper until the headlights come on. The obvious solution is replace the switch, but i strikes me odd that it keeps happening at such small intervals...I just replaced it about 5 months ago and it's already doing it again. What could be causing this problem? And how can I make it go away?

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  • Expert
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When you shim the switch forward, is it really energizing the flash to pass (or high beams)? Your daytime running lamps should only come on when the headlight switch is turned off. The DRL are just the headlamps coming on at a lower voltage and controlled by the ambient light sensor and the body control module. Check your grounds for the headlamps and check the wires etc to the BCM and ambient light sensor. If all that is fine, i would guess that someone is just being too rough with the combo switch.

Posted on Apr 01, 2017

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Talk with an accredited auto electrician about the fault and if it is a problem of excessive current draw through the switch as him to install a light relay to take the heavy current draw away from the switch
check the bulbs in use and if they are bigger than 65/55 h4 bulbs that may be the reason for the heavy current draw

Posted on Apr 01, 2017

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Posted on Jan 02, 2017

brutalnails
  • 76 Answers

SOURCE: main headlights wont work but

these switches operate on copper slide and most times these slides get corroded with a green substance that a simple sand paper job will take care of however there are a lot of part so have a mechanic do it

Posted on Oct 23, 2008

  • 2 Answers

SOURCE: 2002grand am daytime running lights

99 - 04 grand am.

I had the "service vehicle soon" light come twice with in 1 year. First the heald light bulbs were gone. Replaced the head light bulbs and after 2 starts the "service vehicle soon" light was gone.

The second time the DRL - #194 amber bulbs were gone. Replaced these and the "service vehicle soon" light was gone after 2 starts. The DRLs are housed in the headlamp housing, the tiny bulbs beside the head light.

Posted on Nov 24, 2008

  • 83 Answers

SOURCE: 2002 sunfire Drl problem

check wiring in front of washer bottle and harness will lead to passanger side follow it open up harness ussually broken wires inside causing dim or no headlights.

Posted on Jan 03, 2009

ewashmidas
  • 362 Answers

SOURCE: no headlights

A bad headlight switch is a common problem with these cars. All of the power for the lights goes though this switch. You can try wiggeling the switch with the lights on, if they flash off and on as you move the switch the switch could be the problem.

Posted on Jan 27, 2009

  • 1 Answer

SOURCE: 2000 grand prix day time running lights/blower not working correctly

Believe it or not, but it was a bad ignition switch. I the switch apart and found about 3 different and one in particular that were burned pretty bad. Must have been the circuit that controls the blower and DRL? Found the solution on another blog. I put a new switch on in about 1.5 hours. I does take a couple special tools, very small female torx sockets. Other than that pretty easy.

Posted on May 25, 2009

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1 Answer

Cruise control not working


several places to start looking check connections at cruise module under hood check vac connections make sure your brake light switch is functioning properly use a test light to check for a signal at the brake lite switch by engaging and disengaging the brake pedal check connections by the multi function switch block on the rt side of the steering column check for a signal be again engaging and disengaging the cruise control control switch or if you have access to a tech2 these test can be made thru it check all fuses related to system

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Well, it could be one of 3 fuses, but my money is on the multi-function switch. The brake lights and turn signals go thru the switch on different circuits. If the computer does not get a signal from the brake light switch it may disable the cruise control.
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I have a 2000 Pontiac grand Prix GT, I have a problem which GM is aware of. No brake light, third light works in rear window. Bulbs are ok, Fuses are ok. Help


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Cruise control stopped working in our 1998 ford explorer can't find the problem and can't find a diagram of system to be able to check it.


Chances are that you will need to replace the Multi-Function switch. There is a common problem for Explorers to have the switch fail. A multi-function switch controls the cruise, wipers, blinkers and if even one item is not working then will still need to be replaced. Usually you can find a wiring diagram on Mitchell on Demand Do - It yourself website.

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tou need to repl;ace the multi-function switch (turn signal switch) all your lights are run through it
rank my solution & vote 4 me

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