Last bpmv/ebtcm question
Melting Slicks
Joined: Jul 2012
Posts: 2,507
Likes: 9
Bill,
you were spot on with the security call. Went in with EFILive and turned off the VATS and we are back in business. Will leave them off until I get to the bottom of why it has this issue.
Thanks for your help...never thought for a second that it was security given it would run and idle...just cut at 2mph.
Weird system.
you were spot on with the security call. Went in with EFILive and turned off the VATS and we are back in business. Will leave them off until I get to the bottom of why it has this issue.
Thanks for your help...never thought for a second that it was security given it would run and idle...just cut at 2mph.
Weird system.
Race Director
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
I thought it was programmed in to keep you from driving with the column locked and just never got removed. Or it was added in when GM realized the column lock could fail. Also, the column lock ring wasn't supposed to be removed on the manual cars so they still needed a method to ensure you don't drive away with the column locked.
The VATS security system keeps you from even starting the car. If you get it running then you've got past the VATS. The VATS system isn't part of the fuel-cutoff for the column lock either. Did EFI Live label it wrong or confusingly? In HPTuners under the system window in general there is a column lock setting and a Fail Fuelcut VSS setting. The latter is where the 2mph fuel cut-off is set from the factory. Then just below these settings is the VATS setting.
The VATS security system keeps you from even starting the car. If you get it running then you've got past the VATS. The VATS system isn't part of the fuel-cutoff for the column lock either. Did EFI Live label it wrong or confusingly? In HPTuners under the system window in general there is a column lock setting and a Fail Fuelcut VSS setting. The latter is where the 2mph fuel cut-off is set from the factory. Then just below these settings is the VATS setting.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
8vette7 can expound on this issue with a lot more accuracy and added information but,, My 02 ZO6 had one of the recalls done that added the 2 mph cutoff and REMOVED the locking ring.. I still got the locking bolt motor extend/retract but the wheel would not lock.
The lock/unlock motor still operates and can still cause a Column Lock issue. Thats where the CLB comes into play. Once that is installed the bolt is always retracted and the motor no longer operates. The CLB provides the proper lock /unlock signal thru a solid state device.
GM also installed the K Harness which was GMs poorly designed version of the CLB. It can and does fail. Remove it and install the CLB.
GM also rewired /modified the Column Lock relay on some cars. That rewire was done in the passengers fuse box area and looks like a home hack job. Yep,, it was done at the dealership.
Bill
The lock/unlock motor still operates and can still cause a Column Lock issue. Thats where the CLB comes into play. Once that is installed the bolt is always retracted and the motor no longer operates. The CLB provides the proper lock /unlock signal thru a solid state device.
GM also installed the K Harness which was GMs poorly designed version of the CLB. It can and does fail. Remove it and install the CLB.
GM also rewired /modified the Column Lock relay on some cars. That rewire was done in the passengers fuse box area and looks like a home hack job. Yep,, it was done at the dealership.
Bill
6th Gear
Joined: Jan 2013
Posts: 6
Likes: 0
I thought it was programmed in to keep you from driving with the column locked and just never got removed. Or it was added in when GM realized the column lock could fail. Also, the column lock ring wasn't supposed to be removed on the manual cars so they still needed a method to ensure you don't drive away with the column locked.
The VATS security system keeps you from even starting the car. If you get it running then you've got past the VATS. The VATS system isn't part of the fuel-cutoff for the column lock either. Did EFI Live label it wrong or confusingly? In HPTuners under the system window in general there is a column lock setting and a Fail Fuelcut VSS setting. The latter is where the 2mph fuel cut-off is set from the factory. Then just below these settings is the VATS setting.
The VATS security system keeps you from even starting the car. If you get it running then you've got past the VATS. The VATS system isn't part of the fuel-cutoff for the column lock either. Did EFI Live label it wrong or confusingly? In HPTuners under the system window in general there is a column lock setting and a Fail Fuelcut VSS setting. The latter is where the 2mph fuel cut-off is set from the factory. Then just below these settings is the VATS setting.
only car I have ever come across that would allow a car to start and run indicating the BCM was talking to the PCM but then stopped once the wheels turned. Obviously this is in the column lock protocol.This car was A4 and didn't lock the column even though the motor cycled.
Just need to get the stupid "service steering lock" indication off the screen every time it starts...
where do the CLB come from Bill?
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Contact Richard at Compliance Parts.. Here is a couple of post for ya:
http://forums.corvetteforum.com/c5-t...ck-bypass.html
http://forums.corvetteforum.com/c5-t...ck-bypass.html
http://forums.corvetteforum.com/c5-t...ck-bypass.html
http://forums.corvetteforum.com/c5-t...ck-bypass.html
Race Director
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
What you were posting was confusing. Turning off VATS will turn off the security. Turning off the column lock only disables the column lock with the VATS Key->BCM->PCM security system still working which includes the start inhibit relay. So, I don't consider turning off the column lock as the equivalent of turning off the security.
If you had a VATS security system problem then the engine would not even crank.
If you had a VATS security system problem then the engine would not even crank.
6th Gear
Joined: Jan 2013
Posts: 6
Likes: 0
Contact Richard at Compliance Parts.. Here is a couple of post for ya:
http://forums.corvetteforum.com/c5-t...ck-bypass.html
http://forums.corvetteforum.com/c5-t...ck-bypass.html
http://forums.corvetteforum.com/c5-t...ck-bypass.html
http://forums.corvetteforum.com/c5-t...ck-bypass.html
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6th Gear
Joined: Jan 2013
Posts: 6
Likes: 0
What you were posting was confusing. Turning off VATS will turn off the security. Turning off the column lock only disables the column lock with the VATS Key->BCM->PCM security system still working which includes the start inhibit relay. So, I don't consider turning off the column lock as the equivalent of turning off the security.
If you had a VATS security system problem then the engine would not even crank.
If you had a VATS security system problem then the engine would not even crank.
is the column lock part of the security protocol? One would think so if GM instigated it after removing the lock from the column...reckon EFILive have every right to have column lock and security type under VEHICLE ANTI THEFT SYSTEM - VATS for short. And for what it is worth...it cuts more than just fuel when it reached 2mph...log it and have a look....to me it looks like HPTuner got it wrong...if a steering lock and the systems attached to it aren't security what is it?
All part of a multi layered anti theft...which ever way thanks Bill for picking what it was straight away and Iam able to get moving by disabling it via VATS. Initially I though it was something to do with ETC/TCM as it happened and threw a code after 2mph...never dreamt that GM would have a low speed cut off linked to a steering lock...over here the engine will crank via the PIM once crank is engaged from the key...the engine will start and the PCM will look to the BCM for a "handshake" via the PIM. If they two don't link, the PCM shuts the engine off...but then we have a lock in the column that engages from the key...not a remote motor.