Security,starts then stalls?

[Chevy-SS]

I have '98 K1500. I had identical problem. It was a 'Passkey' issue.

I did some research and found a 'bypass' instructional, which involved cutting a couple of wires, measuring resistance with Ohms meter, going to Radio Shack to purchase resistor to match the reading I got, and soldering the resistor in place. Very easy. The wires were located right under the steering column, readily accessible.

The whole process took me less than an hour. My cost was about $5.

I had posted the instructions somewhere. I'll see if I can find them......


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[Chevy-SS]

Dang, my original posts and instructional diagram have been deleted.

However, I used this site in the past. I think they have the instructions for the bypass: http://www.passlock2.com/

According to their site, 98+ Chevy trucks use "Passlock 2".

Here's a pic showing what I did:


Of course, double check my info before you start cutting, to make sure it pertains to your vehicle.....

Good luck!

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[autojoe]

passkey has resistor pellet.........passlock has 2 halleffects and bcm reads one during crank and one during release of key and has a timed window to see both hall effects biased.I dont know how soldering in a resistor will disable.I have always tested and replaced with factory parts.

[Chevy-SS]

Originally Posted by autojoe

passkey has resistor pellet.........passlock has 2 halleffects and bcm reads one during crank and one during release of key and has a timed window to see both hall effects biased.I dont know how soldering in a resistor will disable.I have always tested and replaced with factory parts.

My key ('98 Silverado) does not have visible pellet. I fixed my 'security' issue about five years ago, by soldering in the appropriate resistor. My total cost was literally about $2, to buy a matching resistor at Radio Shack. My truck has worked perfectly ever since. Never had any more 'security' issues.......


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[daman]

Update...

got back from the stealer this afternoon not great but could have been worse i guess dealing with this type of system can really add up in parts, total bill was $342.

problem was a code B1631 in the TDS, TD module was bad,replaced the module did the relearn and back in business.


thanks joe/everybody for your posts, i wish i could have trouble shot this more but i needed my truck,no time to mess around!!!

by the looks of it i probably would not have succeeded anyway.

[autojoe]

the resistor would not have worked in your case.there are shops that do electrical/diagnostic work that are cheaper than the dealer......if modules are not available at local parts stores than have to get from dealer and can be expensive but labor is usually cheaper.glad you got it fixed.