Question about 2003 Nissan Altima

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How to disable anti theft system on 2003 Nissan Altima

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  • Nissan Master
  • 15,568 Answers

This gets asked a lot, so I wrote a tip.

Want to bypass your vehicle security system?

The short answer is you can't!

All modern cars have alarms and immobilizers. There is a chip in the key and a chip in the ignition lock. If both are present, the ECM (engine control module) releases power to the ignition circuit. When you turn the key, the starter spins the engine and you get a spark. If any one of those three items are not in the chain, you get the engine to turn, but no spark. There is no way to beat the system.

The immobilizer is in place to stop exactly what you are trying to do, boost the car and drive it away..

Posted by Andrew... on Mar 26, 2016

Posted on Dec 10, 2016

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Posted on Jan 02, 2017

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1 Answer

2003 ford mustang gt anti theft light flashing engine will turn over but will not start


From my experience...
A non PATS coded key SHOULD not turn the STARTER...!

If ANTI-THEFT were invoked... you can attain a not start condition which the Owners Manual says must be cleared by the dealer.

A working PATS key should disable the anti theft... by turning the ignition on... ELSE try your other key.

The SecuriLock [PATS]
passive anti-theft system is not compatible with
non-Ford aftermarket remote start systems. Use of these systems may
result in vehicle starting problems and a loss of security protection.

Owners Guide (post-2002-fmt)
USA English (fus)

OWNERS MANUAL
Ford 2003 Mustang Owner Manual

SHOP MANUAL
Ford 2003 Mustang Workshop Manual

May 17, 2017 | Ford Cars & Trucks

1 Answer

How to over ride anti theft system in nissian altima 05


Anti theft system not possible to over ride

Nov 03, 2016 | 2005 Nissan Altima

1 Answer

My Nissan Altima 2005 I need to disconnect the anti theft system so I can start my car


Anti theft system is built into your car's Engine Control Module. It cannot be disabled according to everything I've read in the Nissan forums.

Nov 03, 2016 | 2005 Nissan Altima

1 Answer

99 altima turns over but does not start


Anti theft would kill ignition system. Your fuel pump is not running. If it has about 160k miles, replace the pump. If its 140k or less, check fusable links or computer grounds.

Nov 28, 2012 | 1999 Nissan Altima

1 Answer

2005 Altima, if this is the problem, how to reset anti-theft for it will not start? The cam and crank position check out ok.


On most cars the security system can be disabled by locking and unlocking the driver's door with the key.

Jul 06, 2012 | 2005 Nissan Altima 2.5

1 Answer

Nissan key trouble


Unfortunately, the keys have an anti-theft chip in their bodies that communicates with the car's system.
Try Googling ("Nissan/car key programming" for a cheaper price or phone independent garages. The keys can probably only be done by an authorized Nissan dealer. Also, phone locksmiths for their opinion.

Jun 06, 2012 | 2003 Nissan Altima

1 Answer

My friend replaced the positive terminal cable on her 2005 nissan altima with a positive terminal cable from the factory and now the car won't start at all. There is power to all the fuses and the battery...


Hello.
It is very likely that the terminal is fine. Many vehicle owners are not aware that the newer factory installed anti-theft systems will lock down the car, ( prevent it from starting ), if the battery is disconnected for more than just a couple of minutes. In the future if you need to disconnect the battery, make sure that you dis-arm the anti-theft system first

You should be able to find out how to dis-arm/over-ride the anti-theft system in your owners manual.

I hope this helps you.
Donnie

Mar 07, 2011 | 2005 Nissan Altima

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