Starting Issue!!!
Thread Starter
11 Second Club
Joined: Jan 2007
Posts: 35
Likes: 0
Starting Issue!!! So I had to remove my steering column and undid all the wiring. Now I reinstalled my column I get no crank. I get power to everything, and fuel pump turns on. Vats are turned off, I’ve checked neutral safety. All my connections appear to be connected…any ideas what to check..I’ve spent 2 days on trying to get this thing to start…
99 camaro ss
99 camaro ss
Last edited by rwhitaker04; Jan 7, 2022 at 10:33 AM.
TECH Fanatic
Joined: Jan 2018
Posts: 1,250
Likes: 239
From: Dade City, Fl.
I don't know what the vehicle is you are working on is but, here is a schematic for 2005 GM truck
Are you getting power through the start relay? That should be sending power to the starter solenoid and spinning the starter
Are you getting power through the start relay? That should be sending power to the starter solenoid and spinning the starter
The key cylinder actuates a rod in the column that presses a plunger on the starter switch bolted to the bottom of the column. I would make sure that rod is engaged properly, that the switch is working, and that the electrical is hooked up to it.
If you had to undo the pins on the electrical connectors (or even if you didn't), I would check to make sure all the wires in the column connector are seated properly and in the correct positions. I think we have a sticky in the Electronics section that lists them.
If you had to undo the pins on the electrical connectors (or even if you didn't), I would check to make sure all the wires in the column connector are seated properly and in the correct positions. I think we have a sticky in the Electronics section that lists them.
Joined: Nov 2003
Posts: 11,326
Likes: 342
From: Jacksonville, FL (originally from Toronto Canada)
Is the SECURITY light on? If it's an f-body, VATS can't be "turned off". You can program the PCM to ignore the missing fuel enable signal but you can't program the BCM to activate the starter relay - you have to do a VATS bypass or rewire the starter relay ground.
Thread Starter
11 Second Club
Joined: Jan 2007
Posts: 35
Likes: 0
security light works as it should....flashes when not armed, solid when armed, goes off when key is in the hole. ill have to double check my hptuners but im sure it says none for vats control
Joined: Nov 2003
Posts: 11,326
Likes: 342
From: Jacksonville, FL (originally from Toronto Canada)
We're talking about the security light in the instrument cluster (the word SECURITY) not the red alarm LED on top of the dash. The security light should go on solidly for a few moments when first turning on the ignition (the bulb test cycle) and then go out and stay out until the next time you start the car. It's a competely passive system and there is no arming or disarming as there is with the optional factory alarm system.
Whatever your HP Tuner says, it can't completely disable VATS because it can only program the PCM but VATS is in the BCM, which is not programmable. As mentioned, your tuner can tell the PCM to ignore the lack of a fuel enable signal from VATS in the BCM (that's what it considers turning off VATS) but it can't change the way the BCM prevents the starter relay from tripping to run the starter. The only way to do that is with a true VATS bypass or by rewiring the ground wire on the starter relay.
Whatever your HP Tuner says, it can't completely disable VATS because it can only program the PCM but VATS is in the BCM, which is not programmable. As mentioned, your tuner can tell the PCM to ignore the lack of a fuel enable signal from VATS in the BCM (that's what it considers turning off VATS) but it can't change the way the BCM prevents the starter relay from tripping to run the starter. The only way to do that is with a true VATS bypass or by rewiring the ground wire on the starter relay.
Thread Starter
11 Second Club
Joined: Jan 2007
Posts: 35
Likes: 0
We're talking about the security light in the instrument cluster (the word SECURITY) not the red alarm LED on top of the dash. The security light should go on solidly for a few moments when first turning on the ignition (the bulb test cycle) and then go out and stay out until the next time you start the car. It's a competely passive system and there is no arming or disarming as there is with the optional factory alarm system.
Whatever your HP Tuner says, it can't completely disable VATS because it can only program the PCM but VATS is in the BCM, which is not programmable. As mentioned, your tuner can tell the PCM to ignore the lack of a fuel enable signal from VATS in the BCM (that's what it considers turning off VATS) but it can't change the way the BCM prevents the starter relay from tripping to run the starter. The only way to do that is with a true VATS bypass or by rewiring the ground wire on the starter relay.
Whatever your HP Tuner says, it can't completely disable VATS because it can only program the PCM but VATS is in the BCM, which is not programmable. As mentioned, your tuner can tell the PCM to ignore the lack of a fuel enable signal from VATS in the BCM (that's what it considers turning off VATS) but it can't change the way the BCM prevents the starter relay from tripping to run the starter. The only way to do that is with a true VATS bypass or by rewiring the ground wire on the starter relay.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Registered User
Joined: Feb 2022
Posts: 1
Likes: 0
hello
but the BCM cannot be programmed to engage the starter relay; instead, a VATS bypass or rewiring of the starting relay ground is required. turkish citizenship requirements investment in turkey
but the BCM cannot be programmed to engage the starter relay; instead, a VATS bypass or rewiring of the starting relay ground is required. turkish citizenship requirements investment in turkey
Last edited by alawasdon; Feb 10, 2022 at 06:10 AM.
Teching In
Joined: Mar 2024
Posts: 10
Likes: 0
We're talking about the security light in the instrument cluster (the word SECURITY) not the red alarm LED on top of the dash. The security light should go on solidly for a few moments when first turning on the ignition (the bulb test cycle) and then go out and stay out until the next time you start the car. It's a competely passive system and there is no arming or disarming as there is with the optional factory alarm system.
Whatever your HP Tuner says, it can't completely disable VATS because it can only program the PCM but VATS is in the BCM, which is not programmable. As mentioned, your tuner can tell the PCM to ignore the lack of a fuel enable signal from VATS in the BCM (that's what it considers turning off VATS) but it can't change the way the BCM prevents the starter relay from tripping to run the starter. The only way to do that is with a true VATS bypass or by rewiring the ground wire on the starter relay.
Whatever your HP Tuner says, it can't completely disable VATS because it can only program the PCM but VATS is in the BCM, which is not programmable. As mentioned, your tuner can tell the PCM to ignore the lack of a fuel enable signal from VATS in the BCM (that's what it considers turning off VATS) but it can't change the way the BCM prevents the starter relay from tripping to run the starter. The only way to do that is with a true VATS bypass or by rewiring the ground wire on the starter relay.
thank the lord for this information! I was about to do the exact same thing you you stated after chasing schematics and wires for days… I was about to direct ground the relay to bypass BCM and on one last hunt found your reply to confirm. Thank you sir!