If you are trying to get the resistor to match the voltage that is already present during crank, how does that solve anything? After I put it back together I actually had to do the security relearn to get the light to stop blinking, but I'm confused. I actually snipped that yellow wire at one point to see if the truck would stay running when starting from the relay, it was an attempt to disable the Anti-Theft from shutting off the truck after a second when starting from the relay, but it did not work and I put the wire back together. and after innumerable Pendulum Swings from it moving about from all of the Starts & Stops and Left & Right Turns.the Tumbler Parts inside of the Lockwork can become FUBARed.Ĭlick to expand.I've watched the video, and I'm still not exactly sure what I'm supposed to do. **** If the "Lil' Woman" had a Handful of Keys along with 3 Lb "Monkee's Paw" Charm dangling off of the Key Ring.over time. but a better Tear Down and Replace-Repair of The Ignition Switch Housing from the Steering Column would be in order right along with getting a **** Brand New Key-Lock Tumbler Set as well That solution might work in an Emergency -Stranding circumstance.
TRAILBLAZER PCM PIN SCHEDULE ZIP
(3) Sometimes a Loose Upper Multi Wire Connection leading to the top of the Ignition Switch Housing Interface is the cause, temporarily solved by clipping off a bit of a Skinny Black Zip Tie and stuffing it down inside to force a better contact between the Connector and the top of the Metal Body. (2) If the Fuel Pump Primes just after Turning the Ignition Key and then dies in the same sequence after side-stepping the Ignition Fuse Circuit, there is the possible issue of the Key Tumbler Ignition Lock-Work not releasing the Anti-Theft Lock. Likewise.Corroded Engine Block to Body Grounds come into play here. (1) Consider that if the Battery is NOT Stress Tested beyond using a DMM to Measure the Resting Voltage that the PCM-BCM in this Vehicle is VERY sensitive to even slightly sub-optimal Battery B+ Voltage. With the Truck sitting for such an extended period of time of over Three Years, especially in areas experiencing excessive rains and floods, a lot more negative events come to mind: You can disregard that particular comment.īut in reviewing your Original Post #1. Sorry for the "Mixed Thread Metaphors" but I've responded to a few other No Crank - No Start Threads recently and conflated one of those into yours. The security light is not on, or blinking, but I suppose it could still be that. I would really like to fix the parts that are already in place, as there was nothing wrong with them before letting the truck sit. I don't want to have to get any new parts but at the end of the day, if I have to I will. My assumptions are either the PCM, BCM, or anti-theft, that are causing the problem. I doubt the issue is the neutral safety switch as if it was, the truck would not be starting when activating the relay manually, and it can't be the battery or anything that involves starting the truck, as the truck does start. All it does is exactly what the relay does when you activate that, it starts the truck for about 1 second before shutting off. I assume the owner of this truck has this issue before, as there is a red and a black wire hooked up to a cheap metal ON/OFF switch coming directly out of the starter solenoid. The ground socket for the relay does not respond at all to my test light when turning the key to start. Fuse #17 gets powered on both prongs when turning the key to start.
I have tested all of the fuses in the fuse box which are all working. If I start the truck through the button on the relay when you pop the cap off, the truck starts and runs fine for about a second before shutting off (likely due to the anti-theft), I have already hooked up a cheap scanner, which comes back with 0 codes. I have already diagnosed the starter relay, and ignition switch and they are fine. No click noises, no start attempts, the lights in the dash were responding to the key being turned, but that was all. When I went to turn the key, nothing would happen.
We had moved it a couple times as it sat (it sat for a good 3 years), I decided that I want to start using it again since there wasn't anything wrong with it, other than overly sensitive power steering and gas guzzling. I have an 02 Chevy Trailblazer that was working fine up until we got a new truck and left it to sit for a while.
Not sure if this is the right area to post this but here goes.
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