PLEASE SOMEBODY HELP ME!!! Anti-theft sytem failure, really long!!!!

M

msplatter

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I am a not so proud owner of a 95 mark VIII, I have only owned it for a little over a year, but I have only been able to drive it for about 7 months. I love the car to death, but I am on the verge of driving it off a nearby cliff. I bought the car and the thing started and ran great, about 4 months after buying it, the alarm would go off for no reason, ok, well about a month after that I go out and it won't start, it cranks but no start, the anti theft light is flashing. I unplug the battery, wait about 15 minutes, and hook it back up, it starts. It did this intermittently for about 2 months. Then one day it just didnt work anymore unhooking the battery. it just would not start. I looked on your great forum here and found out where the anti theft module was, unhooked it, did no good, I unplugged all the door sensors, didn't work. So the car sat for 2 months before i could come up with the money to take it in and have it looked at.
OK I take it to the dealer they hook it up and it gives no codes. The guy moves my steering wheel it started. I go pick the car up and 2 days later, it does it again, the car sat for another month,took it back to the dealer, they said it was door sensor or the trunk sensor, so they tell me they bypassed them and it keeps starting. I go pick it up this past Friday and today it did it again, I have paid them 400.00 to figure out the problem and each time they tell me what it is and charge me but they are not fixing it. I am at a loss, I have tried everything I can think of, I know that the anti theft sytem has disabled the starter, does anyone know if there is anyway to bypass that wiring to the starter, or where the sensor is in the ignition (it is the only one I cannot find) to unplug that one.
By the way I took the door panel off to see how they had bypassed it, they unplugged it and they unplugged the trunk one as well, they didn't even bother to take out the rivets in the truck they just ripped the covering off, now when I open the truck it hangs down, I am so mad. Please if anyone has any idea, I would be grateful. Sorry this was so long.
 
So you want to disable the starter interrupt relay? If you will ground the Light Green with Purple stripped wire (or disconnect it and short the relay pin the wire was on) to frame ground) that will ENABLE The starter relay all the time. The relay is located behind the glove box, toward the right side.
 
ok so do I cut it?

ok so do I cut it?

I am sorry but you said I need to ground the wire or short it? do I need to cut the wires or just run a wire to them from a ground? Do I need to unplug the module to access the wires? Thank you so much.
 
I found it

I found it

I foudn the wire and the pin it goes on, now if I short that, is it going to crew any of my wiring up? Is this safe?
 
thank you

thank you

I disconnected the entire plug and ran a wire from the green and purple one to a ground but it is still not starting, do the other wires on that plug need to be plugged in for it to start? If so then I guess I have to cut the green wire. Would you know, if I disable the starter relay from shutting the starter off ( if it cranks but won't start because of that relay being triggered) am I basically bypassing the anti theft module? I know I may sound stupid, but I am used to working on cars with a lot less wiring. LOL
 
The other wires need to be connected to the relay. What we are doing here is turning on the relay, instead of letting the security module control it. The module shorts that pin to ground (frame). Remove the wire and connect the pin it came off of to ground (frame).
 
thank you guess I will try it tomorrow, it isn't working out for me tonight. every time I try to connect a gorund to it, the car won't crank, it cranks until I get the ground touched than I get nothing. Is it gonna matter that the anti theft system for some reason is triggered and I cannot unarm it? I just figured if the starter could engage it would start. ARGGGGHHHHH, thank you for all your help, I will post tomorrow and let you know if it works then.
 
I do not think the no-start condition has anything to do with the anti-theft system.

Check your cam sensor and/or crank sensor.
 
driller said:
I do not think the no-start condition has anything to do with the anti-theft system.

Check your cam sensor and/or crank sensor.
Click to expand...

I would agree...I am currently driving around without my security module because the alarm will always go off about 45 seconds after I lock the car...every time. It has some sensor issue somewhere that I need to deal with.
 
not the anti theft?

not the anti theft?

You said you didn't think it was my anti theft system, but I have to tell you everytime it won't start that damn light (anti theft) is flashing, doesn't that mean that your anti theft sytem is triggered, causing the no start issue? I am lost on this car, the wire thing did not work, so you could be right about the other sensors, I do not have a book on the car so I do not know where the sensors are or how to check them. I am just really tired of paying the dealer hundereds of dollars and getting nowhere, you would think that since they maufactured the car they could find the issue.
 
The dealer did tell me that they ran a fuel pressure check to make sure it was getting fuel and it was, they said "it gets fuel, no spark". The only thing that is concerning me about the anti theft, is the light flashing when I am cranking it. Is it supposed to flash while cranking? You have been a tremendous help, I thank you so much!!!!
 
Did you check the crank position sensor yet? It's easy to unplug and plug back in.

It's a common cause of no spark problems.

See Driller's link about it above.
 
If the engine cranks over, it is not the anti-theft system preventing it from starting. When the anti-theft system is triggered, it interupts the starter solenoid circuit preventing any cranking of the engine.

msplatter said:
"it gets fuel, no spark".
Click to expand...

That is indicative of a possible fault of the crank sensor. Many times you can fix this intermittent problem by unplugging and reconnecting the crank sensor harness connector. If that 'fixes' it, most likely the connection is corroded and needs cleaned or the harness connector or wiring has a break causing an open circuit. On occasions the crank sensor needs replaced, but first suspect the connector or harness.

You can have fuel pressure and still have an issue with the cam sensor. The cam sensor simply tells the PCM the position of the cam(s) in relation to the crankshaft so the proper timing sequence to fire the injectors can be established. The connecting harness has a history of breaking where the wire connects to the pin(s) and a new harness connector may need spliced in. Often the cam sensor needs replaced, but first suspect the connector or harness.

Once again, if the anti-theft system is triggered, the car will not crank. The cam sensor is responsible for fuel timing and the crank sensor is responsible for spark timing.
 
ok you are God!!!

ok you are God!!!

You are so smart, the dealer told me it would crank, guess they were wrong. IT STARTED!!!!!! Me and my husband found both the sesors and took them off and cleaned them up and put them back on, and it fired right up. I can not beleive the dealer didn't look into anything but the anti theft sytem. MY THANKS TO YOU!!!!!!
know anything about the airbags? LOL, they go all the way down when I shut the car off, normal? dealer said it was normal, but apparently just because they manufactured the car doesn't mean they know sh!@ about it. Can you convert it to regular shocks, or an easy fix for leaky ones that you know of?
 
Glad to hear that you got it started.

Please stop going to that dealer.:)

If he told you that your car is supposed to slam to the ground when you shut it off, he knows nothing about your air suspension either.

It's most likely leaking front airsprings. Not a big deal but the parts can be about 700 bucks. A coil spring conversion can be done cheaper but it won't be the same as air suspension.

Post the problem in the brakes and suspension forum and you should get some different opinions about it.
 
The air suspension will 'vent' to 'parked height' when parked and the last door is closed. In a quiet surrounding you will hear this as well and is completely normal. It should not 'go all the way down'.

Being an older model, your car is most likely not very well 'represented' in the service department of your dealer. :wink2-green
 
The crack sensor is on the passenger side of the motor, front, under the AC compressor (you can see the connector from front of motor). The cam sensor is on driver side, front, behind the Power steering resivor (sp?). Both sensors use the same shape and size (2 pin) connector.)
 
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