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Old 10-20-2010, 04:38 PM
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98 buick regal solenoid wire wont work., stumped

working on a super low miles 98 regal the purple solenoid wire will not get voltage at the solenoid no matter what we try

theres four relays mounted directly behind the glovebox on the HVAC box housing

one of them has one orange and one dark blue bigger wires and it makes click when you put key in crank position. no idea whats its for.

right next to that relay is one with a lrger orange wire, and a larger purple wire that sure looks the same as the solenoid wire at the solenoid... but jumping it to hot does nothing, so maybe its not for the solenoid.


jump the solenoid directly and works great engine cranks right over fine, but doesnt run, with key in run of course. so there may be another related issue or a whole different one hmm. or the factory key chip security system ?


all the hot wires feeding ignition switch are all good and hot, theres red, pink, and yellow, larger wires, hot at different key positions, all good.

the only larger purple wire in the column harness never hot even in crank position and putting hot on it does nothing either.


swapped relay with another one in the relay center under the hood,

something somewhere for some unknown reason is not allowing current to the purple solenoid wire

she drove the car home one day and shut it off and then it never would crank ever since then

no remote start system to remove or disable

anyone got any ideas? cuz im out of them.

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Last edited by fast68; 10-20-2010 at 04:46 PM.
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Old 10-20-2010, 05:13 PM
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hi,
Sounds like the Anti Theft system.
Rich
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Old 10-20-2010, 05:35 PM
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Thats what I was going to suggest. The key have the black pellet on it? if not that may be the problem.Plug in a scan tool and look for a anti theft system code.If your key is the original the problem is usually the contacts in the lock cylinder. If you want to bypass the VATS measure the key value and get a resistor the same value (within a few ohms) and hardwire it under the steering column into the Vehicle Anti Theft System harness. (orange coated wires)
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Old 10-20-2010, 10:45 PM
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Have you checked the neutral saftey switch? Yellow wire from ignition to NSS and purple from there to starter selenoid I think. Try jumping around the NSS. Make sure it's in Park!
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Old 10-21-2010, 11:16 AM
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the security only prevents fire and fuel i thought

or has on any other one ive ever run into that just would crank but not start, and that ive had to disable etc,

its got the resistor value chip key yes

but it doesnt even engage the solenoid in crank position, which is a whole new thing ive never come across in any of these cars,

the wire to solenoid purple never works, never hot no matter what you try

the NSS switch where would it be on this car?

i do have the console shifter apart and theres a ton of wires to that damn switch and theyre all tiny nothing like the solenoid wire.
i figure that these wireswould be only for maybe reverse lights and for the solenoid that locks out the shifter until you hit the brake pedal, and tied to the ign switch lockout solenoid in the column. the shifter mounted one ive already had to break and disable in the past because it died and quit allowing the shifter to return to park.,

so how am i supposed to know if its causing the no crank problem?

what wires do i jump to bypass the NSS?


or is the reverse switch on the tranny shift shaft?

or even the NSS?

on the tranny?



oh boy...

also i remember now the purple wire in the column wiring its hot and goes out wen you put it in crank position

complete backwards from what the solenoid wire should be doing. but who knows if its the actual solenoid wire
theres a thousand purple wires all over this damn car...


this car only has 60k miles on it and wow the electrical issues with the shifter and column stuff in the 1990s years is wild... see it all the time here at the shop and have to deal with them.


thanks

Last edited by fast68; 10-21-2010 at 11:25 AM.
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Old 10-21-2010, 05:52 PM
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Passkey II system disables fuel and starter. It is designed to keep a crook (stupid) busy trying to make it run after he figures out how to make it crank. Works pretty good huh.
The original VATS system used it too. Its been around for a while
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Old 10-21-2010, 05:57 PM
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You sure the key you have is the same value as stored in the theft deterrent system. (in BCM ). If it isnt you will have to get a tech 2 and relearn the key value.
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Old 10-21-2010, 06:08 PM
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The wiring diagram is pretty complicated this also keeps the bad guy busy.
The pcm is in control of the crank relay which gets its power from the crank fuse (40amp maxi)
You can power up the crank relay socket (in the under the hood fuse box) where the number 87 terminal of the relay PLUGS INTO THE FUSE BOX ,if it cranks that rules out the NSS and the problem will be antitheft sytem issue,
wrong key code, defunct bcm software wiring etc.
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Old 10-24-2010, 03:38 PM
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Lets make this simple, IS THE SECURITY LIGHT ON?
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Old 10-24-2010, 04:30 PM
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Quote:
Originally Posted by blyne3
Lets make this simple, IS THE SECURITY LIGHT ON?
TOUCHE' !
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Old 11-04-2010, 08:44 PM
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Quote:
IS THE SECURITY LIGHT ON?
hi again

hmm well no, its not on... or blinking either



still not cranking engine over, no hot in sol wire ever

no column wires cut for this little cheap-o bulldog security system someone started to install but didnt get very far with,

i totally removed the wires of just the bulldog system

that were attached to a few column wires

each was just simply wrapped around a bare section of a wire up the column

a few of them..

thanks more..

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Old 11-04-2010, 08:49 PM
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Sounds like a real hatchet job
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Old 11-04-2010, 08:50 PM
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yeah it was the beginnings of one, for sure!


but luckily they didnt get very far, and managed to hack into only a few column wires

and nothing else that i can find or see



hmm
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Old 11-11-2010, 08:59 PM
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Quote:
Originally Posted by fast68
hi again


no column wires cut for this little cheap-o bulldog security system someone started to install but didnt get very far with,

i totally removed the wires of just the bulldog system

that were attached to a few column wires

each was just simply wrapped around a bare section of a wire up the column

a few of them..

sounds like a good place to keep checking.

I would get a tech 2 plugged in, and make sure the ECM is aware of the Park/nuetral switch and that it's working correctly.

could also try putting your foot on the brake, and holding the key in crank and move the shifter thru the range and see if it grabs...
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