I made the mistake of taking my Trailblazer to the the local GM dealership to get the driver side door harness fixed.
Got home ok, went to start it next day, no love.
Checked battery, checked everything I knew of, then thought- hey, had a Jeep once where the shifter cable was beeped up.
So I got under it, forced the shifter lever into park, and it cranked, but check engine and every other light was on.
I hooked up my OBD-II and over 100 codes pulled.
I took it to the one decent GM mechanic(I had thought he still worked at the dealership) and he said that the shifter cable was bad, the ECM/PCM is basically just a ground but it is bad, and on the J2 middle pig tail there is a grey "lever" that flips down and locks the pigtail onto the J2, he says j1 j2 and j3 all have ends that lock on using that flip down mechanism. They had forced J2 into the locked position using a screwdriver or something similar.
He said that the under of the Trailblazer had grass stuck every where, that the shifter cable had grass stuck in it, etc. He also said he found a printed VIN tag on the ECM itself and it was from a Colorado. He said it is not correctly programmed to my Trailblazer, that's why there is a blue million codes, and he no longer had access to a tech 2 to fix it. He said if I could get the ECM/PCM software for a 2006 Trailblazer and a Tech 2, and trick the Tech2 into thinking it was plugged into GM's network- I could fix it. He would not attempt it, and no one else I can find will attempt it. I live in BFE's BFE.
The GM dealership called me and their former mechanic a liar, said TY,FY,GB.
So I need the pigtail that locks onto J2 with the flip down lock, or I need the lock.
I have a Ching-chong special complete GM Tech 2 with software that is supposed to be here Friday.
But he said I needed to fix the lock on the J2 pigtail before I tried to fix anything else, as the ECM/PCM is just a ground. What it is the name of that flip down lock ? Can I buy it off Ebay or is it a salvage yard only item where I will need to buy the pigtail and the flip down lock ?
Thank you all.
Got home ok, went to start it next day, no love.
Checked battery, checked everything I knew of, then thought- hey, had a Jeep once where the shifter cable was beeped up.
So I got under it, forced the shifter lever into park, and it cranked, but check engine and every other light was on.
I hooked up my OBD-II and over 100 codes pulled.
I took it to the one decent GM mechanic(I had thought he still worked at the dealership) and he said that the shifter cable was bad, the ECM/PCM is basically just a ground but it is bad, and on the J2 middle pig tail there is a grey "lever" that flips down and locks the pigtail onto the J2, he says j1 j2 and j3 all have ends that lock on using that flip down mechanism. They had forced J2 into the locked position using a screwdriver or something similar.
He said that the under of the Trailblazer had grass stuck every where, that the shifter cable had grass stuck in it, etc. He also said he found a printed VIN tag on the ECM itself and it was from a Colorado. He said it is not correctly programmed to my Trailblazer, that's why there is a blue million codes, and he no longer had access to a tech 2 to fix it. He said if I could get the ECM/PCM software for a 2006 Trailblazer and a Tech 2, and trick the Tech2 into thinking it was plugged into GM's network- I could fix it. He would not attempt it, and no one else I can find will attempt it. I live in BFE's BFE.
The GM dealership called me and their former mechanic a liar, said TY,FY,GB.
So I need the pigtail that locks onto J2 with the flip down lock, or I need the lock.
I have a Ching-chong special complete GM Tech 2 with software that is supposed to be here Friday.
But he said I needed to fix the lock on the J2 pigtail before I tried to fix anything else, as the ECM/PCM is just a ground. What it is the name of that flip down lock ? Can I buy it off Ebay or is it a salvage yard only item where I will need to buy the pigtail and the flip down lock ?
Thank you all.