Where is the ESP ECU ?

CherylJ · Post by **CherylJ** » Tue May 05, 2009 1:42 pm

Hi can anyone tell me where the ESP/ASR ecu is located. Not covered in the Haynes manual.
I want to check the connection as my warning light has come on or could it be a wheel sensor (ABS),
thanks

reap · Post by **reap** » Wed May 06, 2009 9:46 pm

tis on the nsf in the very corner. wouldnt undo connector if i were you.tis easy to bend pins and get contaminted. prob a wheel sensor.bite the bullet and get a plug in and stop randomly guessing which is more than likely gonna cost you more in the long run..

CherylJ · Post by **CherylJ** » Wed May 13, 2009 8:54 am

Thanks for the info.
If its just a wheel sensor wouldn't the ABS show a fault as well ?
Thats why i thought it might be the ECU
Thanks CJ

CherylJ · Post by **CherylJ** » Wed May 13, 2009 2:54 pm

Just been to the local Pug Indy & after much effort was told they can't access the fault codes for the ESP, they said they don't understand why they can't they have before, & that i need to go back to the main dealer ££££££££££££££££££££:yikes:

reap · Post by **reap** » Wed May 13, 2009 9:24 pm

o.k is your car sayoing it has a esp fault or abs fault or both? the esp ecu is part of the abs ecu.
if there diagnostic kit isnt reading it would suggest abs has blown a fuse and isnt communicating. probably a maxi fuse under bm34.

CherylJ · Post by **CherylJ** » Thu May 14, 2009 8:55 am

HI
The ABS light does not stays on, the ESP triangle does stay lit & the display says
"ESP/ASR not functioning"
Does that help or make sense.

reap · Post by **reap** » Fri May 15, 2009 8:43 pm

o.k i see. still say you got a fuse blown if they cant chat to abs unit which is the same as esp.or a wire rotted through?

other fault is a comm2000. it has a steering angle sensor for the esp to operate.

CherylJ · Post by **CherylJ** » Sat May 16, 2009 10:21 am

Hi
found another pug garage & this time the ECU reader worked

Came back saying brake pressure sensor fault.
The guy showed me where it is, bottom of brake master cylinder, & suggested its not to hard to change.
Had a look in the Haynes book but its not covered,
I can't see how its fitted, Screwed, push, or is it a part of the master cylinder, even my EPC is no help, must only cover the early models.
Have you changed one,
Again thanks for any info

reap · Post by **reap** » Mon May 18, 2009 8:27 pm

cool.tis 27mm and screws into the bottom of the mastercylinder. ten min job. other garage must have rubbish diag kit.