Per mechanic codes the 2 parts of the ignition sensor need replacing. However, 1 of the 2 parts is back-ordered & not available–dealer or 3rd party. Is there a way to mechanically bypass the PassLock system to get around this problem? 2000 Silverado 2500 4WD.

In my experience… no. Depending on the system, most systems disable the fuel system and the ignition system. The fuel system can be bypassed to get the fuel pump operating but the problem is in getting the ignition system working. If the passlock module sees the proper signal it will send a signal …

Here’s what I don’t understand. If the passlock module(s) are REMOVED, then there shouldn’t be anything sensing to disallow an ignition or fuel system?

The PCM is the problem, it has to see the proper signal or it shuts everything down. You can remove the module but the PCM still has to see a reference signal so the engine will start. I have tried. I can get the fuel pump to run and get fuel pressure to the injectors. The PCM controls injector pul…

Yes, there is alot of information on the internet but from what I have read the results are mixed at best. There are aftermarket modules available but be careful of what you find on the internet, it’s not always what it claims to be.

I am not talking about buying anything, I am refering to information about how the system works, this information is a key in understanding how to fix it. Take dowm some phone numbers and give these companies a call, you may find you have much to learn. Perhaps all the OP needs to do is a “key rel…

Is this the same type of security system used on the Cadillac Escalade? If yes, then someone knows a way around it, these do show up on the frequently stolen list of cars.

I know how the system works, oldschool. As I said it is not easy to by-pass, I haven’t had any luck doing so and I KNOW how the system works. Maybe you could relate your experience in by-passing the system. The OP asked how to by-pass it. If you can read you would know that he has already had it di…

willey, just what exactly is the problem with the PassLock system? what is the status of the “theft” light? has the OP tried a “key relearn” if you knew how the system worked these are the questions you should be asking and you are not so you don’t. Just a hint for you willey, no bypass techniques …

Yeah the OP said “per mechanic” and I question the skills of the mechanic making the diagnosis because HIS customer is comming to CarTalk for advice. If the mechanic was any good HE would be giving HIS customer answers, not sending him to CarTalk. Willey, you say “you want to help the OP” but you a…

PassLock replacement problem

Maintenance/Repairs

oldschool January 9, 2010, 5:27pm 5

There is enough PassLock bypass info on the web to fix any problem. Just how good is your mechanic with passLock systems?

Topic		Replies	Views
No start problem Maintenance/Repairs impala , chevrolet	47	5918	August 10, 2009
Grand Am Pass Lock Security System Maintenance/Repairs	7	1123	June 22, 2009
Security light and system on a GM car Maintenance/Repairs	28	3776	June 13, 2015
GM PassLock System Maintenance/Repairs	9	2107	December 12, 2014
Passlock Maintenance/Repairs	0	199	August 16, 2008

PassLock replacement problem

Related topics