Thread: Defender Traction Control

Originally Posted by UNDEROVER

I do a bit of fishing, which involves dragging my boat up the beach on a regular basis, and I've had a problem with the traction control working too well. In soft sand, the more wheels spinning at the same time the better, especially with a boat in tow. But I'm faced with the issue of the traction control trying to lock the spinning wheels while I'm trying to traverse a soft section of sand, effectively leaving me a fraction short of where I need to be. Now I have been told that you can actually turn the traction control off in a Landy, by leaving the thing with the diff lock engaged, and then turning the vehicle off and then on again, which leaves the traction control disabled.
Can anyone shed some light on this, as I haven't had the opportunity to test the theory as yet?

I think that is only on D2 with out the diff lock "hooked up" from factory.

I did read this some were though (defender only i think ?)

When you switch the ignition on and you step on the brake pedal 10x within 10 seconds it disables the traction control. I tested (not actually offroad) and it seems to work. The traction control light stays on all the time until you switch the ignition off.


ben...

Yes if it's a Td5 Defender from memory you can disengage it by doing something with the clutch at startup. I think its in the back of the owner's handbook, but there were posts on here about it a few years back.

That reminds me I meant to look for how to do this and try it on the Puma.

nope thats a disco thing... (pipped at the post by DM td5 and benny orignal post was to underover)

try turning the key to the run position. quickly pressing the brake pedal 10 times then turning the key to the start position.

works on some deefers only and if it does work it resets if you turn the ignition off for any reason. (if you have a turbo timer you can usually turn it on on the fly by turning the ignition off long enough for the turbo timer to start then turning the ignition back on, when the turbo timer times out the engine will momentarily loose power and then be on again resetting everything)

for DMtd5.

I have heard but havent tested that holding the clutch in while starting the engine with the tcase in high range, then shifting to low will stop the idle jack in 1/low. I suspect its a rumour but then so was the 10 presses of the brake pedal thing when I orginally heard that one.

Dave, the reason I'm suspicious of the Puma's TC is the system is a Wabco-D same as the Td5. I'll have to give it a go one day to appease my curiosity.

near as i can tell from what Ive seen its more or less the same system

I always had a nagging suspsion that the TC disable thing was ECU linked not wabco linked as in there was a secret hand shake you had to know to ask the ECU to tell the wabco to not respont to the request for TC to kick in..

(if it was wabco linked it would work on all vehicles that have TC with that Wabco unit was always my way of thinking)

Thanks for the info, and I'll give it a try. I've never heard of either of those solutions up until now. all I can say is that this site is a wealth of information on the beloved LR, and I'm trying to adapt after having a 2A for about 12 or so years, which I knew inside out and back to front, to something so technical in the way of the extreme. All I can say is, I had no traction controll issues with the 2A!

Originally Posted by Blknight.aus

near as i can tell from what Ive seen its more or less the same system

I always had a nagging suspsion that the TC disable thing was ECU linked not wabco linked as in there was a secret hand shake you had to know to ask the ECU to tell the wabco to not respont to the request for TC to kick in..

(if it was wabco linked it would work on all vehicles that have TC with that Wabco unit was always my way of thinking)

Wabco-D now communicates to the CANbus but otherwise its the same ECU, same with the Lucas 10AS alarm.

My thought's are the same that it's actually a handshake with the ECU and of course that's completely different.

Please excuse my ignorance, but what is "wabco"...