I installed prostart remote starter in 2002 Sonoma,used xpresskit bypass module to bypass passlock 2, truck started with remote ,now won;t start with remote,have to reset and start with truck key

Trybatt change or reflashin remote. Car modules or actuators cud b problm. Is carbatt holdn charge

These bypass modules usually are a pretty simple installation. Some of these reasons that they fail to operate would include the ground when running connection and igniton signals. Try connecting the ground when running to chassis ground and then remote start the vehicle. If this is the issue, use a relay to provide a better signal for the ground when running. Do not leave this wire connected to chassis ground.

This truck is equipped with what is called "passlock 2" it is a passive security system designed to cut the fuel if the vehicle is started without the key, ie. hot wiring, which in essence is how a remote start works. you can get a bypass module for a reasonable price, mine cost less than twenty dollars on amazon.com. be aware though, there is also a glitch that i am still frustrated with trying to figure out. there is a wire that starts a relay to turn the transmission "on" and if it doesn't get power when the pickup is started, it will send the transmission into default, causing it to shift very hard into drive, then lock in second once it gets past first. i am still trying to find this wire..... good luck

You need to connect the activation input wire on the starter, two negative pulses.

his vehicle has a the PASSLOCK II key
based engine disabling system.

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

If left unchecked, it will continue to lock down
the fuel injector rail, and you will need to tow
it in to GM for evaluation, and resetting anyway.

Bothersome, but can be fixed.

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.

It would 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.

You have the wrong bypass. The bypass you are using is for universal transponders. You need the Passlock 2 bypass. The passlock is a resistance that is read from your ignition cylinder by the bcm that will allow your truck to start.

You installed this unit yourself, correct? You mentioned the bypass unit but not the remote starter unit. First, are all of the car's power wires connected...ignition(pink), 2nd ignition(green or white), accessory(orange)? There is a brown but it is radio accessory and not necessary for remote starter installation. Second, make sure that the ground for the XK06 is connected to the pass lock ground wire(black or orange with black) and not chassis ground. Next, check the ground when running(GWR, brown) from the XK06...make sure that it is connected to the remote starters ground when running. Now, it CANNOT be connected during programming, so make sure that you connected it AFTER you programmed the module. You didn't mention the remote starter unit but this wire is blue/white for Directed, light blue for Prestige and blue with black for some Code. Next, make sure that the ignition and starter wires of the XK06 are properly connected to the vehicle or remote starter's ignition and starter wires. You stated that the remote starter starts when you turn the key to accessory on...what about with just putting the key in the ignition(withoput turning the key)?

There is a great write-up here: http://newrockies.ca . This was the only system that saved my Park Avenue.

put your key in the ignition hole and remote start it, if it starts you need to reposition the key in the box or the loop around the igntion switch

Unfortunately you are correct, this
vehicle has the PASSLOCK II key
based engine disabling system, and currently it
is engaged. The sensor does not recognize &
retain the passlock reader chip in your ignition
switch any longer.

A bypass is required to circumvent.
If left unchecked, it will lock down the fuel injector
rail (as it has now), and you will need to
tow it in to GM for evaluation, and resetting.
Eventuall, the 10 minute over ride will cease to
work and you will finally be forced to visit
a Pontiac/GM dealer.

But, if you want to just remove this system
from the equation entirelly,
I suggest the PLJX bypass kit to get around
this issue.

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.
Coincidence to installing
after market remote starters, this does work on bypassing
passlock in most all GM vehicles,
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.