Traction control Rover 2,5 v6, Help
 

Hi
I have been searching the forum for quite some time, but have not found similar problems described.
In order to have the car approved, I need to get rid of the alarm lamp for the traction control, and my previous diesel Rover is now nearly dead after 370 K km.
This car is purchased with the problem existing, so I do not know the complete background.
But still a nice car with only 130 K km.

So far I have exchanged the ABS hydraulic unit, with the second hand unit that came with the car.
The ABS alarm disappeared, and the speedometer is now working.
A friend mechanic with his professional Land Rover diagnose equipment concluded that all wheel sensors are working, and the brake pedal signal is ok.
Hi did not reach the Rover specific details, and I don’t know anyone that have the correct equipment to do so in Norway.

The alarm lamp comes on after a couple of seconds when ignition is turned on, and stays on.
From this forum I have picked up that the actuator on the bulkhead that controls the second throttle flap vale on the inlet manifold, should pull the cable at start-up.
This is an initial test of the system, that might trig the alarm.
I have removed this actuator, and found that it turns when applying 12 volts from an external source.
When measuring the actual supply plug, I have found it comes alive at start-up delivering 12 volts.
It seems that when connecting the activator, the voltage is dropping to zero level.
This makes me believe that there is somewhere a faulty connection, or a relay with burn-out contacts.

Could anyone guide me in the right direction please?

In your situation I'd just buy a replacement, like this:https://www.ebay.co.uk/itm/BMW-7-SER...wAAOSwccdcjr2b and see if the problem goes away.

And then get yourself a copy of Toaf (use the search on here) and visit either https://www.facebook.com/groups/1800705170206717/
or
https://www.facebook.com/groups/153448372029381/

Regards

Ps. Just re-read - you changed the ABS unit, there are ABS units with / without traction control, I hope you got one with the same numbers as the ABS originally had

Thank you for Your reply :}
I will join the Norwegian and the Swedish fb Groups, maybe somone have the Tools.
And no, i dont think the activator is the problem.
The sypply dont seems to be delivering

Could you please confirm that the ABS unit you installed had the same numbers as the one removed - otherwise it may be the source of your problem.

I believe it's also possible to "erase" the traction control function from the car by modifying the ZCS codes. This is beyond my knowledge but there are people here that can advise.

Hope to see you soon on the Scandinavia groups.

Regards

Yes. If the ABS unit did not have traction control it is possible to turn it :off: via ZCS coding.

The identification sticker is at the bottom and very hard to see without dismantling the unit again.
That will involve complete bleeding of the system once more.
I have kept the old unit, so possible to compare, but that will have to wait a few days.
Should have made a note before exchanging og course
:duh:

I see you're now in the Norwegian FB group - I'll reply there.

Regards