The anti theft system in the 2000 Saturn LS1, thinks you're trying to steal the car sometimes. You have to wait ten minutes before the 'Security' light stops flashing. Once the security light is not flashing you can start the car. Trying to start the car with the security light flashing will either burn out your starter or deplete your battery!
No Crank, No Start Diagnosis - EricTheCarGuy
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Whenever you have a no start condition when attempting to start your
vehicle it's important to make the distinction between "no crank, no start"
and "crank, no start" situations as they are treated differently. This
video covers what I do when confronted with a 'no crank, no start'
situation and in this case it's a worst case scenario so be sure to watch
till the end.
Starter diagnosis video
No start basics video
Parasitic draw video
Click below and Stay Dirty
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2001 Chevy Malibu Won't Start - Anti-Theft, Security Flaw
This is related to 2001 Chevy Malibu I hopped in and it would not start.
Sounded and acted like it was out of gas, or the fuel pump was bad, or
there was no spark to fire the plugs. I googled for like 2 hours and found
a solution, tried it and it worked! Turn the key to the "On" position for
10 - 15 minutes, turn it to the "Off" position for like 5 seconds (In the
video I said 5 minute, but did not realize how PISSED OFF I was At
CHEVY)... It worked. Second video was after the 11 minutes I waited,
turned off for 5 seconds and then it started...
GM Passlock Electrical Wiring Short
GM Passlock Electrical Wiring Short
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Automotive Robo Tech was called to a shop on a 2003 Chevy Van G2500, with a
4.8 liter engine, experiencing a security light on followed by a no start
situation. For some reason, the shop replaced the crank sensor. Because is
was a no start, they reason it was probably the crank sensor, and of
course, it wasn't. They eventually saw the security light on, and figured
out that it was a Pass-Lock system issue. They next replaced the Pass-Lock
key cylinder, with no luck either. At this time, the shop decided to call
me in for assistance. They simply didn't have to scan tool to access the
BCM or body module for this problem.
When I arrived at the shop, the tech gave me a briefing on the vehicle, and
also said that the vehicle would start once in a blue moon. Ok, that was
probably some kind of clue. I started my diagnostic by performing a general
code analysis. I did get code P1632, or Theft Deterrent Fuel Disable Signal
Received from the BCM. There were no other codes present. I knew it wasn't
the key cylinder, since it was already replaced. There are steps to take in
all Pass Lock diagnostics before condemning a component.
In this particular GM, the signal from the ignition system is controlled by
a resistor embedded in the Pass Lock module, which is part of the ignition
switch cylinder. In these systems, any key that will allow the cylinder to
be turned to the on position will work, the only condition that must be met
is that the cylinder must be turned to a position where a magnet engages a
hall effect switch, which connects the embedded resistor to the system,
allowing the Body Control Module to read the signal value, on the yellow
Pin A6 wire, and determine if the resistance value is correct.
I analyzed the Pass Lock calibration and determined that it was correct.
So, why was this car not starting? I started to suspect an electrical or
connector fault. So I decided to visually inspect the Pass Lock module and
wiring. Everything looked normal, so I then decided to concentrate on the
BCM. As I scanned the B C M data stream for clues, I saw that all of a
sudden I lost communications.
Was the ECM defective? Or, was it an issue with the ...... Get the whole
story right here, right now!.... Watch this video and see how it ends...
Presented using advanced software CG animation and editing technology to
help you understand. Part of our Automotive Technology series shown here on
this channel. Enjoy...
GM passlock problem
2001 Impala Base 114,xxx miles.
Runs & drives perfect, except....
GM replaced BCM computer 9-09. Accomplished nothing.
I replaced ignition switch w/NAPA part 10-09-09. Worked great for 2 weeks.
Then started having the same ole trouble.
I replaced ignition key tumbler switch w/passlock sensor w/NAPA part
No problems until this week 1-13-10.
Still doing the same exact thing it was doing before I replaced anything.
Hasn't started any day this week. 10 minute wait, etc. will not work.
Starts when it wants to.
Anyone have any ideas on how to properly repair this chronic problem?
----NOTE----the problem is fixed.
Cleaned the contacts on the BCM computer fuse.
That's all it took. If your car is exhibiting symptoms exactly like mine
did, I'd try that 1st.
General Motors PASSLOCK® anti-deterrent features in a 99 Pontiac Grand Am 2.4L
So, once again GM has done it. They invented something that failed and yet
again they don't have a solution. This feature should not be added to any
car, even if someone steals the car, the odds of this system to stop
working are zero to none. Once WE THE OWNERS need to replace an ignition
cylinder or an ECM, then the system fails for us. And the Dealership has NO
CLUE how to fix it other than the helpful tip to crack the ECM open and
replace the "memory chip". We all know that the memory chip is integrated
and soldered on these years models. There is a reason why I love FORD!
Call this number to help start a recall. 1(888)327-4236 this number is from