Garage Support

Back to Forum

Post a Response

Rover 75 V6 2.5 2002 - ABS ECU location? - Fixed #

Posted by Keith Brown on February 5, 2010, 5:37 pm

Year of Manufacture *: 2002
( Optional ) Engine Code or CC: 2500

could any one tell me where the ecu is located,somedata is not very accurate,im begining to think it is part of modulator/pump assy which you cant see without removing battery & stuff.

Re: rover 75 v6 abs ecu location

Posted by bryan swales <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT1950' width='330' height='300' border=0 style='border:none;'> on February 5, 2010, 6:25 pm, in reply to "rover 75 v6 abs ecu location"
Bryan Swales

Yes you are spot on the money - take out air filter box,battery and tray and you will be able to get into it.
Bryan

Re: rover 75 v6 abs ecu location

Posted by andyhyoung <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT5148' width='330' height='300' border=0 style='border:none;'> on February 5, 2010, 6:27 pm, in reply to "rover 75 v6 abs ecu location"
Andrew Young

Sure is part of the modulator assy ,but is replaceable as a seperate part.Need to remove the battery and tray assy for access.What fault do you have?

Re: rover 75 v6 abs ecu location

Posted by keith brown <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT1429' width='330' height='300' border=0 style='border:none;'> on February 6, 2010, 8:45 am, in reply to "Re: rover 75 v6 abs ecu location"
Keith Brown

thanks for your responses,the fault i have is the abs is coming on at low speed braking,no stored codes & with live data on road test all wheel sensors appear to work ok,however comms drops out above20mph , thats with 3 machines,the trouble is the fault occurs when you go above 30 mph! very frustrating,next step i guess is to scope sensors, i also found engine ecu drowning in the wiper scuttle,dried that out , looking at wiring diag looks like engine ecu uses speed signal from abs unit so have to be sure that is not corrupt, read alot about these in archives,sounds like it could just be relucter on 1 wheel bearing,having car back in next week,should the abs comms drop out above 20 mph, if so thats pretty useless data!your thoughts?

Re: rover 75 v6 abs ecu location

Posted by Peter Macdonald <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT1631' width='330' height='300' border=0 style='border:none;'> on February 6, 2010, 10:41 am, in reply to "Re: rover 75 v6 abs ecu location"
Peter Macdonald

Hi Keith, If you scope the sensor you can get a much better picture of the signal. It can be done just spinning the wheel by hand and on the road. There are some good archives on the Pico site.
Peter

Re: rover 75 v6 abs ecu location

Posted by Shaun Dale <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT2719' width='330' height='300' border=0 style='border:none;'> on February 12, 2010, 9:57 pm, in reply to "Re: rover 75 v6 abs ecu location"

Hi Keith,
Many ABS systems stop comms above a certain roadspeed, I suppose the decision in software is "now I need to concentrate on ABS control and not comms" but a pain nevertheless. One vehicle I repaired recently (can't remember which, but it was a diesel) stopped comms in first gear at idle speed which was a pain as I was fighting the engine management with the brakes to keep the speed down.
I had a rover 75 recently with ABS problems, when I scoped the rear wheel sensors I found one pulse per rev missing on the O/S/R which turned out to be a flake of rust stuck on the ASB bearing. In the end I had to remove the disks and descale the hubs to prevent the problem reoccurring.
HTH Shaun

Re: rover 75 v6 abs ecu location

Posted by tomas <iframe src='https://members4.boardhost.com/ukautotalk/info/user=ukat1006' width='330' height='300' border=0 style='border:none;'> on May 17, 2012, 9:57 am, in reply to "Re: rover 75 v6 abs ecu location"

hi did you get to the bottom of this fault as i have one in the same?

Fixed #

Posted by keith brown on May 17, 2012, 2:42 pm, in reply to "Re: rover 75 v6 abs ecu location"
Message modified by board administrator May 23, 2012, 3:09 pm

Hi

sorry forgot to post a fix on that one!
yes it was a swollen rear sensor which had worn the ring away hth keith.

« Back to index

[ Garage Support ]

Copyright © uk autotalk