Traction System Warning Light

Terrychivers · 17th June 2021, 16:54

Having just replaced the ABS pump on my 75 V6 to stop the ABS warning light coming on, the Traction System Warning Light is now permanently on and a laptop diagnostic system will not turn it off. Any idea why this is happening?

vitesse · 17th June 2021, 17:33

Quote:

Originally Posted by Terrychivers

Having just replaced the ABS pump on my 75 V6 to stop the ABS warning light coming on, the Traction System Warning Light is now permanently on and a laptop diagnostic system will not turn it off. Any idea why this is happening?

Hope you fitted the correct type of ABS pump with support for traction control. Did you fit one with the same part number?

Regards

Terrychivers · 17th June 2021, 20:26

Quote:

Originally Posted by vitesse

Hope you fitted the correct type of ABS pump with support for traction control. Did you fit one with the same part number?

Regards

An independent mechanic fitted a second-hand pump salvaged from a donor vehicle. It was identical to the faulty one that was replaced.

Best wishes
Terry

BigRuss · 17th June 2021, 20:40

They are physically the same, was it the same part number?

Why was it changed?

The only way to rid the traction warning light if it is from a non-traction car is to change the vehicle ZCS coding

Russ

slovcan · 18th June 2021, 12:32

Further to all this, if ANYONE EVER scraps a diesel with a working ABS pump, PLEASE salvage the pump. They are as rare as hen's teeth on the used market and that puts the prices through the roof. All the others are a dime a dozen.

vitesse · 18th June 2021, 13:43

Quote:

Originally Posted by slovcan

Further to all this, if ANYONE EVER scraps a diesel with a working ABS pump, PLEASE salvage the pump. They are as rare as hen's teeth on the used market and that puts the prices through the roof. All the others are a dime a dozen.

Not sure if you're actually looking for one but there's one at a scrapyard here in Sweden. No price given but they generally cost about £120. (https://www.bildelsbasen.se/se-sv/Ro...a/ID-10557603/). If I can help let me know.

Regards

slovcan · 18th June 2021, 16:35

Quote:

Originally Posted by vitesse

Not sure if you're actually looking for one but there's one at a scrapyard here in Sweden. No price given but they generally cost about £120. (https://www.bildelsbasen.se/se-sv/Ro...a/ID-10557603/). If I can help let me know.

Regards

Thanks Vitessse. I am not looking just yet, as I am not with my car at the moment. That is a good price, though. When I get there I'll clean the electrical contacts first with fingers crossed. It only faults for about 10 minutes at the first start of the day. Under bonnet heat seems to fix it.

Cheers,
Glenn

Terrychivers · 20th June 2021, 13:04

Quote:

Originally Posted by BigRuss

They are physically the same, was it the same part number?

Why was it changed?

The only way to rid the traction warning light if it is from a non-traction car is to change the vehicle ZCS coding

Russ

This is very interesting. I assumed that all 75s would be fitted with Traction Control. The pump was replaced because I was continually getting both ABS and Traction Control warning lights. Diagnostics showed this was caused by a circuit failure between the pump and the FNS brake. The entire circuit (including the sensor) was replaced between the wheel and the pump with no effect. The pump was very badly corroded from water ingress so we replaced it with a salvaged unit and this cured the ABS warning. However, the Traction Control warning has stayed on but there is no diagnostics information to suggest why.

Best wishes
Terry

vitesse · 20th June 2021, 18:33

https://www.the75andztclub.co.uk/for...=142602&page=3
post 26

Regards

Terrychivers · 5th August 2021, 11:14

Everything seems to be functioning correctly (except, presumably, the Traction Control) so I guess we fitted the non-traction ABS pump. I gather that it is possible to edit the codes to make it a non-traction car, which is fine by me, but how is this done? Does it need a T4 and, if so, where would I find someone with a T4 kit near me (West Somerset?)

17th June 2021, 16:54	#1
Terrychivers Newbie Rover 75 Saloon Join Date: Aug 2020 Location: Minehead Posts: 8 Thanks: 0 Thanked 1 Time in 1 Post	Traction System Warning Light Having just replaced the ABS pump on my 75 V6 to stop the ABS warning light coming on, the Traction System Warning Light is now permanently on and a laptop diagnostic system will not turn it off. Any idea why this is happening?

17th June 2021, 20:40	#4
BigRuss Premium Trader 75 CDT Tourer,2.5 Launch Saloon, Omipro MG/Rover (T4) Join Date: Jul 2007 Location: Liversedge, West Yorkshire Posts: 5,405 Thanks: 1,105 Thanked 1,340 Times in 661 Posts	They are physically the same, was it the same part number? Why was it changed? The only way to rid the traction warning light if it is from a non-traction car is to change the vehicle ZCS coding Russ __________________ Replacement Key Service http://https://the75andztclub.co.uk/...d.php?t=244732 Full T4 Testbook diagnostics available. Diesel ECU repair and replacement. Options enabled or disabled as required. Diesel X-Power 135 and 160bhp, Rover 1.8T 150 to 160 MG 160 V6 to 177 upgrades available P.M. for details.

18th June 2021, 12:32	#5
slovcan Gets stuck in 75 Tourer CDT MK2 manual in Glorious Grey Join Date: Jan 2018 Location: Slovakia Posts: 987 Thanks: 926 Thanked 346 Times in 252 Posts	Further to all this, if ANYONE EVER scraps a diesel with a working ABS pump, PLEASE salvage the pump. They are as rare as hen's teeth on the used market and that puts the prices through the roof. All the others are a dime a dozen. __________________ Southern Slovakia Anything can happen in Formula 1 and usually does - Murray Walker 1999 Triumph Trophy 900, Saddlesore 1600, Iron Butt Riders Association #63720 2005 Rover 75 CDT Tourer MK2

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20th June 2021, 18:33	#9
vitesse I really should get out more....... Rover 75 Saloon Join Date: Jul 2011 Location: Gävle Posts: 2,528 Thanks: 395 Thanked 823 Times in 652 Posts	https://www.the75andztclub.co.uk/for...=142602&page=3 post 26 Regards

5th August 2021, 11:14	#10
Terrychivers Newbie Rover 75 Saloon Join Date: Aug 2020 Location: Minehead Posts: 8 Thanks: 0 Thanked 1 Time in 1 Post	Everything seems to be functioning correctly (except, presumably, the Traction Control) so I guess we fitted the non-traction ABS pump. I gather that it is possible to edit the codes to make it a non-traction car, which is fine by me, but how is this done? Does it need a T4 and, if so, where would I find someone with a T4 kit near me (West Somerset?)