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2000 GMC Envoy No Start

When entering and starting this vehicle, if the driver is not in the vehicle with the door shut, vehicle is immobilized when key is turned (Yellow Security light stays illuminated) I do not have a keyfob to arm or disarm this vehicle and have tried to disconnect the battery but have had no luck. Other vehicles that I have had this concern with I have turned the key in the drivers side key cylinder to lock then unlock and it disarms the system. When I do that, the light goes out, but still no start - The fuel pump is not making noise when key is turned. I believe the immobilizer system to be cutting power to fuel pump. How do I deactivate this system with no keyfob? Thanks

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6 Suggested Answers

  • 261 Answers

SOURCE: Key will not unlock door

the lock on the driver side could be damaged or some on might have used a jimmy to open that door before how evr you have to open the pannel and remove the lock cylinder part and make sure that the key is working or yo must change the tumbler s in the lock to fit your key (lock smith)

Posted on Nov 19, 2008

bunnydawg
  • 5158 Answers

SOURCE: disarm the immobilzer

ed... i think he'd like us to tell him how to steal a car lol

Posted on Dec 16, 2008

  • 2 Answers

SOURCE: my immobilizer will not disarm

when you say "the immobilizer will not go off" that mean you can still drive the car or not,when the immobilizer goes on you can start the car but will not run, so what do you need a spear key for .you may need the valet key, is a gray key .
I am professional car alarm and remote start installer so I deal with this kind of problems if you have any question email me
pcesar7@yahoo.com

Posted on Dec 31, 2008

Mike258
  • 1498 Answers

SOURCE: keyless remote wont work, vehicle completely shut down

Hi Russell,

Absolutely no power? No dome light? No head lights? Nothing?
When you step on the brake pedal, no brake lights?

If true, start at the source and pop the hood.

This is going to be a bit of back and forth dialogue. I'll ask some questions and you get me the answers. That way we can get to the root of the problem. To save time, I'll ask multiple questions at a time. Here goes.

  • Check the battery. Is it still there? (Valid question with no evidence of power)
  • Are the terminal clamps tight?
  • Are the terminals clean and free of corrosion?
  • Are all the belts in place and tight? (pay special attention to alternator)
  • If you have a voltmeter. test the voltage at the battery terminals. It should be +12.5VDC.
Try getting a jump, when the cables are attached does anything light up?
Does it turn over and start?
Does it do anything?

Comment me back with your findings
Mike

Posted on Jan 05, 2009

picatudo
  • 239 Answers

SOURCE: interference to RKE, immobilizer activates, cannot disarm immobil

Car Alarms: 1998 Grand Cherokee RKE, rke system, jeep dealership
Good luck let me know !!

Posted on Jan 28, 2009

  • 65 Answers

SOURCE: truck wont start. security lite on. doesnt seem

turn the key to the on position and pump the gas 4-5 times, this should help. My mom has a 03 silverado wich also done this and I contacted a dealer and they gave me this solution and it worked.

Posted on Aug 14, 2009

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