Expert: INSTALLSUPPORT - 7/31/2008

Question
QUESTION: My son bought a 99 cavalier(his first car)that to our knowledge did not have a problem with the anti theft prevention. But after bringing it to a repair shop to checkout to see if anything else may be wrong with it.. They put it on a code reader and and now it it starts but shuts off soon after.Could putting it on that machine have reset it?My son said that the machanic said something about the code for it.And what can we do to get it started.Without spending $300 to $500 to fix it.Thank you

ANSWER: Yeah, :>( Bad news I am afraid.
Somewhere along the way, the passlock 1 system
was reset. This is a problem.
it is possible they reset the PASSLOCK code.

You can attempt to put the key in the ignition,
turn it on to just before cranking and then leaving
it that way for 10 mins. After that,
some PASSLOCK systems will re learn the code
and allow for starting. Trouble is, the
bypasses I know of are all based on the engine
being able to start currently.

But if not, the system
will either need to be seen by GM or, a bypass module
is required to circumvent.

Bothersome, but it can be fixed.
Start with GM and tell them to simply
reset your passlock system. This SHOULD NOT
be that costly since there is nothing wrong with it.
I'd also talk to the mechanic about splitting
that cost now! Once reset, BYPASS it for good.

I suggest the PLJX bypass kit to get around
this issue. www.PASSLOCK2.com

This Passlock Bypass Module is designed to momentarilly
allow the engine to remote start by sending a proper
coded pulse to open the fuel rail passlock injector
cut off circuit.

The output from an alarm/remote starter
would then shut down the pulse, once it has detected
the engine has engaged, and preserve the integrity
of the passlock system.

That is it's designed purpose.

However, in your case, this input wire on the PLJX module,
instead of going to a momentary ground pulse from
an alarm/remote starter,
would go to a constant chassis ground, through
the bypass module, grounding out the PASSLOCK.
The PASSLOCK would then always be bypassed as long
as that wire is chassis grounded.

I can not speak about a damaged passlock system,
like if a thief has destroyed it, because I do not
get into this part of GM'S security application.
But as a happy coincidence to installing
after market remote starters, this does work on bypassing
passlock in most all GM vehicles we've run into,
including your year GM vehicle as well.

Also, this is a self learning, resistor sensing
and adjusting module. Once the VATS wires have been tapped,
you would press the program button to learn,
and it does. The car should then allow start
with any hardware store key.

Hopefully, it will on yours as well.

You might want a car alarm installer to do this
for you, the fair rate being around 50. to 75.
for labor.

Kind Regards,

Robert Martin-ALARMTEK/CEO
Master Technician
Mobile Security Electronics
www.PASSLOCK2.com

---------- FOLLOW-UP ----------

QUESTION: What my son brought it to the mechanic for was the gas mileage.(not getting what he should.)The mechanic said that there was sum sensor in the fuel tank reading bad then he said something about the anti theft code and reset it.Could the sensor in the fuel tank be bad and cause passlock not to work and give a false code?The mechanic claims he did nothing to it,but my son did drive it there and it was working before all this.

Answer
I understand you want me to help you point a finger
at the mechanic, but I can't do that.

You will need to have what was done inspected first hand.
I am simply listening to your story, but have
no real facts to look at so, it's all speculation.

You need someone to inspect the issue there
to determine fault.

A.