Rover 75 Abs Ünit (Bosch 5.7) - Page 2

SCP440 · 10th June 2020, 07:01

Cracked ABS rings can also cause problems. The usual give away with this is the light will go out when you start the car but when you move off the light comes on. I had a Saab a few years that did this, the crack was tiny and barely visible.

As has been said don't presume new sensors are OK, I have seen several new ones that are faulty and it does not seem to matter the make or the price. I have even had a genuine Ford sensor fail out of the box, the dealer did not even question it and just gave me another so I presume it is a common occurrence.

If you do end up replacing the controller don't presume if it looks the same and the plug is the same it is the same, every letter and number MUST be correct.

Typhoon190 · 10th June 2020, 07:47

Quote:

Originally Posted by oruba

. What was the cause of the problem?

A small amount of corrosion around the earth. The car was put on the T4 computer and all faults were checked and cleared. At rest on the ramp it was fine. As soon as the car was moved off the ramp and into the car park the light came up again.

oruba · 3rd April 2021, 22:39

We found that EMS cannot communicate with the Abs module.
I replaced the Bosch Abs unit and my problem was resolved.

oruba · 3rd April 2021, 22:41

I answer the question at the beginning of the topic myself; Bosch Abs units are available with and without traction control.

oruba · 3rd April 2021, 22:53

The abs modules of cars that do not have a traction control system do not have the 4 marked parts at the bottom.

oruba · 3rd April 2021, 22:56

I tried uploading a photo but it didn't work? Why?

chris75 · 5th April 2021, 10:36

Quote:

Originally Posted by oruba

I tried uploading a photo but it didn't work? Why?

The usual reason is that the photo is too big

3rd April 2021, 22:56	#16
oruba Regular poster Rover 75 2.5 V6 Saloon Join Date: Dec 2018 Location: Maltepe-İstanbul Posts: 54 Thanks: 9 Thanked 1 Time in 1 Post	I tried uploading a photo but it didn't work? Why? Last edited by oruba; 3rd April 2021 at 23:05..

10th June 2020, 07:01	#11
SCP440 I really should get out more....... MG ZT-T 260 Join Date: Feb 2016 Location: Witney Posts: 2,504 Thanks: 6 Thanked 910 Times in 571 Posts	Cracked ABS rings can also cause problems. The usual give away with this is the light will go out when you start the car but when you move off the light comes on. I had a Saab a few years that did this, the crack was tiny and barely visible. As has been said don't presume new sensors are OK, I have seen several new ones that are faulty and it does not seem to matter the make or the price. I have even had a genuine Ford sensor fail out of the box, the dealer did not even question it and just gave me another so I presume it is a common occurrence. If you do end up replacing the controller don't presume if it looks the same and the plug is the same it is the same, every letter and number MUST be correct.

3rd April 2021, 22:39	#13
oruba Regular poster Rover 75 2.5 V6 Saloon Join Date: Dec 2018 Location: Maltepe-İstanbul Posts: 54 Thanks: 9 Thanked 1 Time in 1 Post	We found that EMS cannot communicate with the Abs module. I replaced the Bosch Abs unit and my problem was resolved.

3rd April 2021, 22:41	#14
oruba Regular poster Rover 75 2.5 V6 Saloon Join Date: Dec 2018 Location: Maltepe-İstanbul Posts: 54 Thanks: 9 Thanked 1 Time in 1 Post	I answer the question at the beginning of the topic myself; Bosch Abs units are available with and without traction control.

3rd April 2021, 22:53	#15
oruba Regular poster Rover 75 2.5 V6 Saloon Join Date: Dec 2018 Location: Maltepe-İstanbul Posts: 54 Thanks: 9 Thanked 1 Time in 1 Post	The abs modules of cars that do not have a traction control system do not have the 4 marked parts at the bottom.