How can I bypass the PassLock system on my GMC Suburban?

Ive recently become victim of the passlock system on my 99 gmc suburban 1500 4×4. I want to bypass this security system all together. After some research and studying the wiring diagrams it seems plausible that you could cut the fuel pump relay wire and run it directly into the “hot when on or start” part of the ignition.

Why does my GMC 99 suburban not start?

I have a 99 suburban that will occationally not start due to the factory security system. The dealership said they’ll need to replace the ignition switch, key, and a couple of other things (not the security module though according to the computer) to make it work.

How to reset PassLock reset system on Chevy?

1. Turn the key to ON and attempt to start the engine and release the key to the ON position. 2. The SECURITY light will illuminate. Wait 10 minutes until it turns off. 3. Turn the key to OFF for 10 seconds. 4. Turn the key to ON and attempt to start the engine.

Is there a problem with the PassLock sensor?

The short answer is there’s a problem with the sensor. Some have suggested that the pins in the system are “tin” plated and subject to oxidization over time. Others say their system is possessed by the devil and in need of an exorcist.

Is there a way to bypass PassLock on a Chevy?

NewRockies.com has a solution for how to fully bypass the PassLock system in GM cars. This problem has popped up in the following Chevrolet generations. Most years within a generation share the same parts and manufacturing process. You can also expect them to share the same problems.

Why did General Motors start the PassLock system?

Aug 1st, 2005 The PassLock system was designed to prevent vehicle theft by disabling fuel to the engine if attempts are made to start the vehicle without the correct bitted key. PASSLock increased the level of security while retaining the ease of service and costs offered by standard ignition lock systems.

What to do if your car won’t start at PassLock?

A red (or yellow) “security” warning light will stay illuminated and the engine will either a) never start or b) start for a moment and then shut down. A temporary fix is to leave your key in the ignition, at the “auxiliary” position for about 10-15 minutes until the security light shuts off.

Is there a security light on a Chevy Suburban 1500?

I have a 1999 chevy suburban 1500 and it was doing the whole cut off the fuel trick. The trick to it is when you put the key in only turn on to auxilary lights on the dash, the security light should be on but NOT blinking. Should start up with no problem.

Is there a PassLock solution for a 99 Silverado?

’99 Silverado Passlock solution? So I find out my truck has a remote start system wired in, had no idea until now. Bought the truck last year on easter weekend. The previous owners didn’t give us any remote or anything So I recently had this no start issue which I worked on for a while but eventually had to get it to a shop.

What kind of PassLock does a Chevy Astro have?

*THIS SERVICE IS THROUGH PRO-REBUILD, NOT GMFLASH.* IF YOU OWN A 1998-2002 CHEVROLET FULLSIZE TRUCK OR SUV (C AND K SERIES, GMT-400), SAVANA OR EXPRESS VAN, OR A 1998-1999 GMC SAFARI OR CHEVY ASTRO, YOUR VEHICLE IS EQUIPPED WITH A COMPONENT CALLED A “PASSLOCK MODULE”.

Can you buy a new PassLock module from GM?

SINCE 2015, PASSLOCK MODULES HAVE BEEN OBSOLETE FROM GM. YOU CANNOT BUY THEM NEW. GMFLASH HAS TEAMED UP WITH PRO-REBUILD, WHO HAS DESIGNED AND BUILT A TESTER USING PROPRIETARY SOFTWARE AND HARDWARE. THIS IS TO ENSURE THAT EVERY SINGLE PASSLOCK MODULE THEY SELL TESTED GOOD, BOTH BEFORE AND AFTER THE REBUILDING PROCESS.

What was the PassLock system on a Chevy Tahoe?

The mid- to late-90s versions of the Tahoe used a passive security system called “Passlock.” Unlike the active anti-theft system which sets off an audible and visual alarm as a warning, the passive system simply shuts down the car ignition.

Is there a factory security bypass on a Silverado?

On my 99 silverado, I had the blinking security light, went into cut off mode. There is a procedure, too restart. key to on 10 min, off 1 min, 10 min on, off 1 min, on 10 min, then off. Got it home, found loose connection at the three wires, above key.

Can You disable the PassLock on a GM car?

The following instructions will allow you to disable the PassLock security in quite a few GM Vehicles. •This will allow you to install a remote starter and not have to purchase a bypass. •Avoid Costly repairs for an already broken PassLock System.

Is there a way to bypass GM security system?

Scouts Troop 980 of Utah cheers as their ’92 Olds Toronado is coming back to life. Thanks to the NEWROCKIES Full Bypass Module! How to FULLY bypass VATS Passkey and Passlock Security Systems in GM Cars. Has the dreaded GM Security system just hit you?

Why does my Silverado Sierra jerk at high speeds?

If you hammer it down, the truck smooths out. It appears to only happen durring light acceleration and at higher speeds. The best I can do to explain the jerking is that it feels as if is missing or being starved for fuel and about to run out. There are no check engine lights on in the truck.

How to help me with a Chevy k1500 misfire?

× Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

What causes a bad acceleration on a Silverado Sierra?

That means, the bad converter is a symptom of some other problem, such as a misfire condition that has allowed raw fuel to enter the exhaust and overheat the converter, causing it to fail. I would suggest further diagnosis before replacing the converter, or you could burn up the new converter.

Can a bad crankshaft sensor stop a car?

Driving with a failing crankshaft position sensor can be difficult and potentially dangerous. It could lead to long-term vehicle damage and expensive repairs, or even stop the car from working at all.

How can you tell if your transmission has failed?

A good way to tell if this is the case is to look at the vehicles RPM on the highway. If the needle moves up and down with the most minor of rpm input change, than it is likely that the locking mechanism has failed. It feels so different going down the highway that it can be confused for a lack of overdrive.

What does it mean when your transmission Cant shift into fourth?

If it can’t shift into fourth anymore, that means that there is a mechanical issue at hand. These things wear out and eventually even a well maintained automatic transmission will fail. We’ll cover them below.

Can a GM security bypass kit be installed?

This GM security Bypass kit will work for several GM, Oldsmobile, Chevy, Pontiac or even Buick vehicles on the street today. I was surprised to see how easy it was to install with very little effort.

Can you bypass Passkey 3 on a GMC 1500?

CHEVY/GMC 1500,2500,3500 – YouTube PASSKEY 3/SECURITY SYSTEM BYPASS! No start issue? CHEVY/GMC 1500,2500,3500 If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

How to bypass vats, Passkey and PassLock security systems in GM?

It can be VATS, Passkey or Passlock anti theft system that is going bad causing your issue. I am going to share a secrete with you on how you can bypass these systems with very little effort. This is a really unique security system bypass kit that you can use to override your current factory theft system on your GM vehicle.

This GM security Bypass kit will work for several GM, Oldsmobile, Chevy, Pontiac or even Buick vehicles on the street today. I was surprised to see how easy it was to install with very little effort.