2005 LX470 TRAC / VSC OFF / VGRS Warnings

[rrc swb]

Hey Guys...

I'm struggling to find whats going on with my truck.

I removed the battery to work on the truck... I had it out for a few days. It's a brand new battery (24F-AGM).

When I reconnected the battery, the TRAC / VSC OFF / VGRS warnings came on. I drove the truck for a few miles hoping the system will reset and turn the warnings off. Like it did before.

I've read that the AHC, remote mirrors, seat memories, immobilizer stops flashing, VGRS, VSC, remote locking will not work. All of that works on my truck.

My steering has become impossible to move... It gets very hard, then soft again.

I have no ODBII codes and have no idea where to start looking for issues.

Before I start replacing parts... I'd like to get a better understanding of the issues I have.

 

[studawg]

Id try reboot again if you haven't already. Disconnect battery, touch both cables together to fully discharge the system, then reconnect. Turn key to "ON", but not start, let everything boot up. Then turn all the way off, and then turn all the way on and start it up. If the lights are still on, you need to get a code reader and read and clear all the codes that way.

 

[rrc swb]

I haven't tried that... I'll post back.

I have a cheapo ODBII reader that didn't read any codes.

I'll ask a buddy with the Snap-On reader to help me out.

 

[rrc swb]

Still the same... The scanner didn't find any codes and disconnecting the battery didn't clear the warnings.

Any thoughts?

 

[Mark WV]

try this

1. start engine and straighten wheels / steering wheel as straight ahead as possible
2. turn off engine, disconnect battery, open a door to draw down any remaining current in the wiring..
3. hook up battery, start car. VGRS light should remain lit but other lights should go off

If only VGRS light remains lit, this is normal, drive vehicle 5 - 10 miles and it will go off once the vehicle determines the Zero (straight ahead) position of the steering wheel.

I suspect the wheels were significantly off center when the battery was first reinstalled - the computer can't determine the zero point of the steering thus it turns off the traction and stability control as well as the Variable gear ratio steering.

if this doesn't work, next step is to use Techstream to recalibrate the set the zero point of the steering...

 

[rrc swb]

Gotcha.

 

[Mark WV]

see this link for instructions

VSC Zero Point Calibration

forum.ih8mud.com

 

[rrc swb]

Thanks

 

[gerbilunit]

Hey @rrc swb would you mind sharing what ended up working, I think I'm in the same pickle as you...