[VT-VX] + VY How to disable Traction Control (ETC)

For those people with LPG factory fitted you will not need to worry about this, this should already have been performed by Holden.

For those with LPG you can disable Traction Control very easily (should already be done, if not it can cause problems when driving as the ETC changes spark firing and air/fuel ratio as well as boost for supercharged vehicles). If you dont have LPG, and just dont like Traction Control this is also the right topic to disable it.

NB: This how-to will only tell you how to disable Traction Control. It will not disable ABS. Thus your ABS system will still work properly.



The proper and recommended way to disable ETC is this:

1. Open your bonnet to reveal your ABS module on the drivers side wheel arch.

2. Disconnect the battery

3. Remove the wiring connector you see on the front of the ABS module.

4. Locate terminal 27 and push it out of the connector. NB: If your unsure the wire is Black/White in colour.

Image of connector in case your confused:


5. Use some electrical tape to tape up the terminal.

6. Plug the connector back onto the ABS module.

7. Reconnect the battery.

8. Close your bonnet and enjoy no traction control.


Please note that when this is done the ETC system will be disabled. This will result in the TRAC OFF light (in VT and VX) and the TRAC OFF warning on LCD screen (VY) to be active. VT and VX owners, do not remove the warning lamp in the cluster. It is there for a reason, and reminds you (or the owner) that it's function is unavailable.

I do not take any responsibility for you being actually able to take off properly in situations.

 

That you would need to still re-flash the ECU. You will have to put up with it a while longer i guess. Sorry i couldn't help you

SAMO-87, yes it's that simple, however this does it permanently. No risk of not knowing whether it's on of off. That way whenever you start your vehicle it's always off. No need to toggle it.

Main reason for this how to is that it needs to be disabled for LPG vehicles.

 

Yes, when you want to put it back on simply untape the terminal and push it back into the harness. This will enable traction control again.

 

ABS module is simply that box near your fuse box with a few metal tubes running into it. From memory there are no screws to remove.

Philthy, didn't think of that, the wire does run to engine connector 1 (one of the three connectors at the firewall in front of the steering wheel). From there it passes through the firewall and across to the passenger side of the vehicle where it connects to the PCM. It is possible to put a switch in between, and in theory this will work fine. Pin 27 is only the response signal for the torque request from the PCM, so i can't see switching it on and off normally would be bad. This would elimante the need for the traction control switch inside the vehicle too.

 

That would be possible but not advisable. Will get complicated for the driver for the first while of driving and switching between the two. Also, the spark plugs used are different when LPG is installed and the Traction Control system (especially spark retarding) is all based on the regular unleaded spark plugs.

 

randeep01, yes this does apply to dual fuel. In the manual it states that adding LPG (to an existing Unleaded setup) and running both needs this to be performed.

 

juzzyx, yes, you can do this on a VY wagon too. All VT's to VY's this works for. It's the same as driving with traction control off.... except there's no need to manually disable it all the time.