Traction Control Fault / Fail

bearhouse · 24th February 2019, 09:18

Hi All,

I wonder if someone can kindly help. I have a Rover 75, 2.5 V6 2001. On starting the Traction Control fail symbol comes up in the message display. Occasionally it clears so I assume works but lately is always on.

Might it be a faulty traction control unit mounted in the passenger footwell near the fuse box?

Any other advice or suggestions much appreciated.

Regards,

Terry.

stocktake · 24th February 2019, 09:36

Most common fault on TC system is the breaking up of the gears on the unit mounted on the bulkhead ( high up drivers side). There is a small inspection flap on the unit to enable you to look at the gears.
If you do discover the fault is the broken gearing then before you pay an arm and a leg for one, it is identical to the early BMW CRUISE control unit on the E39 such as this ( you just have to swap the cable)
https://www.ebay.co.uk/itm/Original-...TL6c:rk:6:pf:0

bearhouse · 24th February 2019, 11:19

Many thanks for the info Dave.

I'll check the gear now. I note the part you sent on eBay is a cruise control unit not traction control.

My cruise control does work ok so might it still be that?

bearhouse · 24th February 2019, 12:00

Hi Dave,

I have looked at the white gear and there is definitely one tooth knackered. However, the motor doesn't turn once the ignition us turned to position 1.

I have removed the motor plug and there is 10.5 volts on the plug with ignition turned to position 1. That doesn't seem right as I would have thought should be 12V. I'm assuming not a fuse but possibly a relay contact. Do you know which relay to check?

Regards,

Terry.

stocktake · 24th February 2019, 12:04

You will probably find the teeth are lodged in the gearing stopping it from self testing. you can prise the top off and open with a thin blade.
JUST FOR CLARITY. The BMW CRUISE unit linked to is identical to our TRACTION control unit
Dave...

bearhouse · 22nd March 2019, 10:46

Hi,

I've just fitted the replacement BMW cruise control motor. However, the Traction Control Fail symbol is still present.

Any suggestions as to what else could cause the Traction Control to fail / be off?

Regards,

Terry.

24th February 2019, 09:18	#1
bearhouse Regular poster Rover 75 Join Date: Aug 2009 Location: Herts Posts: 83 Thanks: 0 Thanked 0 Times in 0 Posts	Traction Control Fault / Fail Hi All, I wonder if someone can kindly help. I have a Rover 75, 2.5 V6 2001. On starting the Traction Control fail symbol comes up in the message display. Occasionally it clears so I assume works but lately is always on. Might it be a faulty traction control unit mounted in the passenger footwell near the fuse box? Any other advice or suggestions much appreciated. Regards, Terry.

24th February 2019, 09:36	#2
stocktake Vis Whiz Rover 75 2.5 auto Saloon Join Date: Jun 2007 Location: LEEDS Posts: 20,591 Thanks: 2,057 Thanked 3,056 Times in 1,621 Posts	Most common fault on TC system is the breaking up of the gears on the unit mounted on the bulkhead ( high up drivers side). There is a small inspection flap on the unit to enable you to look at the gears. If you do discover the fault is the broken gearing then before you pay an arm and a leg for one, it is identical to the early BMW CRUISE control unit on the E39 such as this ( you just have to swap the cable) https://www.ebay.co.uk/itm/Original-...TL6c:rk:6:pf:0 __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident

24th February 2019, 11:19	#3
bearhouse Regular poster Rover 75 Join Date: Aug 2009 Location: Herts Posts: 83 Thanks: 0 Thanked 0 Times in 0 Posts	Traction Control Fault / Fail Many thanks for the info Dave. I'll check the gear now. I note the part you sent on eBay is a cruise control unit not traction control. My cruise control does work ok so might it still be that?

24th February 2019, 12:00	#4
bearhouse Regular poster Rover 75 Join Date: Aug 2009 Location: Herts Posts: 83 Thanks: 0 Thanked 0 Times in 0 Posts	Traction Control Fault / Fail Hi Dave, I have looked at the white gear and there is definitely one tooth knackered. However, the motor doesn't turn once the ignition us turned to position 1. I have removed the motor plug and there is 10.5 volts on the plug with ignition turned to position 1. That doesn't seem right as I would have thought should be 12V. I'm assuming not a fuse but possibly a relay contact. Do you know which relay to check? Regards, Terry.

24th February 2019, 12:04	#5
stocktake Vis Whiz Rover 75 2.5 auto Saloon Join Date: Jun 2007 Location: LEEDS Posts: 20,591 Thanks: 2,057 Thanked 3,056 Times in 1,621 Posts	You will probably find the teeth are lodged in the gearing stopping it from self testing. you can prise the top off and open with a thin blade. JUST FOR CLARITY. The BMW CRUISE unit linked to is identical to our TRACTION control unit Dave... __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident

22nd March 2019, 10:46	#6
bearhouse Regular poster Rover 75 Join Date: Aug 2009 Location: Herts Posts: 83 Thanks: 0 Thanked 0 Times in 0 Posts	Traction Control Fault / Fail Hi, I've just fitted the replacement BMW cruise control motor. However, the Traction Control Fail symbol is still present. Any suggestions as to what else could cause the Traction Control to fail / be off? Regards, Terry.