Reading the BCM

rovermech · 16th August 2022, 08:34

Hi
Is there a scanner that will read the BCM (body control module) on a 2005 75
such as pin pointing which wheel as a abs problem.

Regards Graham

SD1too · 16th August 2022, 08:53

Hi Graham,

The ABS has its own ECU, integrated with the electro-mechanical modulator. It works on the CAN bus and communicates with the Engine Control Module not the Body Control Unit (this is according to RAVE).

Have you ruled out the front wheels using the simple checks?

Simon

dave lincs · 16th August 2022, 08:59

Quote:

Originally Posted by rovermech

Hi
Is there a scanner that will read the BCM (body control module) on a 2005 75
such as pin pointing which wheel as a abs problem.

Regards Graham

Hi Graham

Most garages these days have a good enough diagnostic machine that will code read a rover 75 ABS system, If you are stuck send me a PM as i have the perfect machine that will diagnose your problem

Dave

vitesse · 16th August 2022, 09:59

Toaf will read your car without difficulty and pinpoint which is the offending corner. It believe it reads the ABS module rather than the Body Control Unit.

Link: Toaf - https://toaf.roverki.eu/index.php/en/
Toaf - ready to go cable: https://www.ebay.co.uk/itm/174768878...1df6%7Ciid%3A1

Others are cheaper but require modification and even then don't always work as Hogweed will testify. I've bought from this seller and his cables do work.

Regards

BigRuss · 16th August 2022, 10:55

The ABS module actually has its own diagnostic line that connects directly to the OBD socket.

The ECM also connects directly on another pin in the OBD along with the cruise control, airbag and Autobox ECU'S which share the same line

All other ECU's are diagnosed via the instrument pack.

Russ

BigRuss · 16th August 2022, 11:22

Graham as you're not too far away from me, if you would like me to have a look and tell you where your problem lies, feel free to drop me a message.

Russ

rovermech · 16th August 2022, 13:43

Thanks for all the replies, what happened I heard a clicking from the o/s/f
wheel, put the car up on stands and drove it but the clicking didn't happen and
silly me switched the engine off but left the key in the ign and started checking
the wheel by hand and I turned the wheel backwards and that put the abs light
on tried to remove the sensor but its solid so before removing the hub I'm going to run it and see if the light goes off which as happen on of my other cars

I do have 4 Rover's 2 17 year old 75s / 26 year old P38a / 62 year old P4 80

Regards Graham

rovermech · 17th August 2022, 08:49

Hi
Latest update went out in the 75 this morning and before I had traveled a mile
the ABS light went off, so all ok and back to normal, so back to getting the P4
ready for the next show, at last weeks show I received a rosette for the
condition of the car so that was nice.

So thanks again for all the replies

I love my Rovers

2 75s 1 P38a Range Rover 1 P4 80

Regards Graham

16th August 2022, 08:34	#1
rovermech Regular poster Rover 75 Saloon Join Date: Nov 2006 Location: Sheffield Posts: 54 Thanks: 1 Thanked 17 Times in 8 Posts	Reading the BCM Hi Is there a scanner that will read the BCM (body control module) on a 2005 75 such as pin pointing which wheel as a abs problem. Regards Graham

16th August 2022, 08:53	#2
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,479 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Hi Graham, The ABS has its own ECU, integrated with the electro-mechanical modulator. It works on the CAN bus and communicates with the Engine Control Module not the Body Control Unit (this is according to RAVE). Have you ruled out the front wheels using the simple checks? Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce. Last edited by SD1too; 16th August 2022 at 08:58..

16th August 2022, 10:55	#5
BigRuss Premium Trader 75 CDT Tourer,2.5 Launch Saloon, Omipro MG/Rover (T4) Join Date: Jul 2007 Location: Liversedge, West Yorkshire Posts: 5,411 Thanks: 1,105 Thanked 1,340 Times in 661 Posts	The ABS module actually has its own diagnostic line that connects directly to the OBD socket. The ECM also connects directly on another pin in the OBD along with the cruise control, airbag and Autobox ECU'S which share the same line All other ECU's are diagnosed via the instrument pack. 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. Last edited by BigRuss; 16th August 2022 at 11:08.. Reason: Spelling correction

16th August 2022, 11:22	#6
BigRuss Premium Trader 75 CDT Tourer,2.5 Launch Saloon, Omipro MG/Rover (T4) Join Date: Jul 2007 Location: Liversedge, West Yorkshire Posts: 5,411 Thanks: 1,105 Thanked 1,340 Times in 661 Posts	Graham as you're not too far away from me, if you would like me to have a look and tell you where your problem lies, feel free to drop me a message. 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. Last edited by BigRuss; 16th August 2022 at 13:21..

16th August 2022, 13:43	#7
rovermech Regular poster Rover 75 Saloon Join Date: Nov 2006 Location: Sheffield Posts: 54 Thanks: 1 Thanked 17 Times in 8 Posts	Reading the BCM Thanks for all the replies, what happened I heard a clicking from the o/s/f wheel, put the car up on stands and drove it but the clicking didn't happen and silly me switched the engine off but left the key in the ign and started checking the wheel by hand and I turned the wheel backwards and that put the abs light on tried to remove the sensor but its solid so before removing the hub I'm going to run it and see if the light goes off which as happen on of my other cars I do have 4 Rover's 2 17 year old 75s / 26 year old P38a / 62 year old P4 80 Regards Graham

16th August 2022, 09:59	#4
vitesse I really should get out more....... Rover 75 Saloon Join Date: Jul 2011 Location: Gävle Posts: 2,545 Thanks: 395 Thanked 823 Times in 652 Posts	Toaf will read your car without difficulty and pinpoint which is the offending corner. It believe it reads the ABS module rather than the Body Control Unit. Link: Toaf - https://toaf.roverki.eu/index.php/en/ Toaf - ready to go cable: https://www.ebay.co.uk/itm/174768878...1df6%7Ciid%3A1 Others are cheaper but require modification and even then don't always work as Hogweed will testify. I've bought from this seller and his cables do work. Regards

17th August 2022, 08:49	#8
rovermech Regular poster Rover 75 Saloon Join Date: Nov 2006 Location: Sheffield Posts: 54 Thanks: 1 Thanked 17 Times in 8 Posts	Reading th bcm Hi Latest update went out in the 75 this morning and before I had traveled a mile the ABS light went off, so all ok and back to normal, so back to getting the P4 ready for the next show, at last weeks show I received a rosette for the condition of the car so that was nice. So thanks again for all the replies I love my Rovers 2 75s 1 P38a Range Rover 1 P4 80 Regards Graham