Question about 2000 GMC Safari

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Switch is bad,the contacts inside black box not making contact,when you go to start no no 12 volts go to the coil

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  • dingdong10 May 11, 2010

    Ignition fuse?


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You need more a complete question than a statement. I'm assuming that's your van? Try loosening the retainer screws on the black plastic cover for your ignition switch. You should see the solder points...using a DMM or test light, check that you have +12VDC to the large gauge blk/wht wire.
Does the engine crank when you turn the key? Is it just a no-fire?

Posted on Aug 07, 2009

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2007 Ford Explorer horn quit working?

suggest checking if 12 volts goes to horn wire at horn end when horn pressed from inside vehicle. A 12 Volt probe {google it} can be a cheap checking tool for this.
If 12v volts is switched when button is pressed {could be earth being switched if it is then place probe on constant 12 volts and negative lead on switched earth wire} then the horn itself is faulty.
If no voltage switched then horn relay needs to be checked. check if voltage at horn relay coil contact when button pressed.
if yes then relay may be faulty. if no then horn switch could be faulty.
you can check switched voltage also at horn relay switched contact when relay plugged in. To see if relay is doing what it is meant to do

Jan 16, 2017 | 2007 Ford Explorer

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Why relay coil do not energises?

Firstly test your relay coil to see if its okay. Then trace back and see where your getting your 12v for the coil. Test the contacts to make sure you dont have a bad contact....bad contacts are common

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If glow plug relay is putting out 10.50 v.could the seliod be bad

the relay will have 4 pins
two pins will register 12.volts ( power from the battery on one pin and power from the switch on the other
on the other side of the relay on the pin that completes the circuit for the coil in the relay will be possible 10 volts because of the resistance in that coil.
once activated the remaining pin will show 12 volts as it is now the power going to the glo-plugs ( straight contacts closing )

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My tans sport 1996 wipers soped wprking fuse is good trying to find a relay pump for wiper wash stop working as well

Your symptoms are typically that of a defective fuse. There are no relays for either the wipers or the washer pump and both operate off the same fuse. Check the fuse again and make sure that it is making good contact on both contacts. With the ignition on, check that you have 12 v + on one of the fuse contacts to earth, use a volt meter or a 12 volt bulb to check this. If you have power and the wipers are still inoperative you will have to start looking at wiring and the wiper/washer switch incoming power wire right from the fuse box.

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Ignition troubles

unplug connector at ignition switch, bridge terminal 30 [battery power] on connector and terminal 50 power to starter solenoid. engine should turn over. plastic ignition switch can wear and not make contact. at times the lug on ignition barrel that turns the switch breaks off.

May 23, 2010 | 1996 Volkswagen Jetta

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I need a simple diagram on how to install a push button starter switch using a toggle switch, push button and resistor. The only thing I need is to start the car. Its an old VW and I want to bypass the...

its hard to provide a schmatic without pictures but here is what you would need ... i assume you are using a three position toggle switch with a spring loaded position for start ... all contacts would be off at first .. contact #1 would be off, on , on ... that would switch 12 volts to the ignittion ballast resistor that is in series with the coil (normal running position).. contact #2 would be off, off, on (spring loaded) ... that would jumper the ballast resistor only for starting (that compensates for normally low battery voltage while running the starter) .... the third contact would also be off, off, on (spring loaded) . that would cnnect 12 volts to the starter relay .. that contact would have to be rated for the current drawn by the starter relay .... if you wanted a different switch arrangment a toggle switch for ignition and a seperate push button for start .. then the ignition toggle would just provide 12 volts to the balast resistor that is in series with the coil ... it would only need one contact off,on .. the push button would have to have two contacts both operate at the same time .. one conntact would jump the balast resistor when on (start) .. the second would provide 12volts to the starter relay.. the second switch configuration might be easier to find than the first ...

Apr 11, 2010 | 1998 Volkswagen Beetle

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Ignition will not turn off the van, key out of van, van still on

it sounds like the small arm inside the steering colunm has broken. on my windstar it was actually two pieces. if you do not have tilt steering the job to replace it isn't too bad tho you have to pull the steering wheel and remove the lock cylinder. to test if this is correct you would need to pull the ignition switch... it's under the steering column. there is a pin on it that fits into the arms that come down from the ignition switch. remove the ignition switch and turn the key while looking up into the hole where the small arm is. if it doesn't move it is broken.

for the immediate problem just either pull the fuse for ignition or remove the breather snorkel that attaches to the throttle body and block it off with your hand.

Oct 21, 2009 | 2003 Ford Econoline Cutaway

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I have a 2000 towne and country with a bad passenger side window. My husband tried replacing the motor but the window still wont work. what else could the problem be? The driver side window works fine. We...

I'm assuming you checked all the fuses -- they should be good, but in some cases, the right and left side windows may be on separate fuses.

The best procedure to find this problem is to start at the motor and work your way back to the power source (fuse box) testing each component to see if it is getting voltage.

If you fail to get 12 volts at either of these steps then the component leading to the one which failed to show 12 volts is bad.

First step is to test, with a multimeter, the motor leads for 12 volts when the window switch is engaged.

If you get 12 volts, there, then you should test the coil side of the window motor relay for 12 volts under same conditions.

If you get 12 volts there, test the window switch leads for 12 volts on both sides of the switch. You can also use the multimeter to test the window switch for continuity to see if it is passing current. If it fails the continuity test, replace the switch.

If you get 12 volts there, let me know and we'll take the next step.

I know this is complicated, but electrical troubleshooting is not simple.

More info, let me know.


Aug 23, 2009 | Chrysler Town and Country Cars & Trucks

2 Answers

Lights are on...nobody home.


Haven't had a chance to verify this for certain, but, I learned that if the starting system is in "interrupter mode" the engine will turn over, but not start. In my case, it will not turn over.....suggesting that my problem may lie elsewhere! This would prompt me to check my electrical circuits, cables,etc. Since I have lights, I would check my smaller lead running to the solenoid. With a volt meter...set on DC volts, closest to the voltage in question (in this case, 12 volts) ground the black lead of your volt meter to clean connection on engine or frame. Put the red lead on the solenoid terminal of the starter (the smaller of the two leads) Have an assistant turn key to starting mode. If you experience a voltage drop of 0.5 of a volt, but still dosnt activate solenoid, this would prompt me to check solenoid. To gain access to starter, remove heat shield. Before you procede with any procedure, disconnect the negative terminal of the battery. Make sure it does not come back into contact with terminal, as wire tends to have a "memory".

Its colder than hell right havent had chance to follow up


Jan 27, 2009 | 1998 Honda Odyssey

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