ABS sensors

[robin hughes]

mice

[thanuttiscotsman]

hi there,
yes field mice! as my car was in my friends back garden on slabs for 5 years before he just gave it to me. he lives in the countryside and has a massive field in which ive rallied since i was 15 yrs old. in my first car a bx 1.4 with no clutch.!!
i quickly learned that with his bus battery if i stuck my car in first or second gear and started it the car would go and drive off no prob, so i then tought myself how to rally then later how to drive.

cheers rossco

[thanuttiscotsman]

......mice living under the back seat just where the rear sensors
leads run ....mmmmmmm. Would seem a good place to start

hi martyn,
missed this post of yours but just spotted it. will be looking under there for broken wires next time im at the garage! cheers for the tip. ive never thought of that before as ive never noticed abs sensors at the rear so assumed it didnt have them.

cheers rossco

[Toddman]

To my knowledge Rob is correct but I fear cheating the abs ecu with resistors may lead to strange semi functional abs however IF everything is correct and the light is on there should be no abs and yes the pedal should pulse when working correctly.

Cheers
Luke

[jayw]

My car was running with the resistor in for a year, it simple switched the ABS off at 7mph (or whatever it is) as it wasn't getting the expected resistence.

According to Bosch files, if the lamp is lit the ABS is inoperable and the brakes return to normal use.

The lamp does NOT tell you there is a fault, it simply tells you the systems ON or OFF state. (hence removing the fuse puts the lamp on).

Cheers, Jay

[martyn]

thats why I suggested removing the fuse, lamp stays on but do the braking charictaristics stay the same, if the pedal don't thump the abs aint working.

[thanuttiscotsman]

hi there,
well it is really strange as my brakes are just as good as the old 1.4 bx if not better, and it used to stop on a 50p. only different thing was it didnt have abs, but i will carry out the test and video it to show evidence that what im saying about my car is right. but im starting to think there is a wiring fault maybe dash wise as to why the light is on. as ive had about 30 cars in my life so far (im only 22) a good few of them have had abs so i do know the difference and if it works or not. i have the feeling the abs light comes one when the pads low thing is triggered but that should be if anything a good reason for the abs to keep working not switch off cos that would be dangerous. i will investigate and get back on this.

cheers rossco

[MoRtYMer]

Well about the low brake pads warning light, it doesn't do nothing to the abs (at least on my car). My right wire (passenger side here, driver side there), is cut and now with the wet, sometimes goes on, but doesn't affect the abs, or abs light.

[martyn]

Rossco, does your brake pedal shudder when you stand on the brakes untill you come to a stop, if it doesn't then the abs isn't cutting in, abs on the Bx lets you know when its working.
My front pads have no low pad warning wiring and the abs still works fine (pass me that lump of wood someone) and I think it's the brake disc symbol that lights when the low pad warning is activated.

We'll sort it eventually

[thanuttiscotsman]

hi there,
to be totally honest i have never noticed the brake pedal shudder in any car!! but if i wasnt looking for it then thats prolly why. but i have had a many cars with abs including a brand new one so they did work. but i will chack it toady as im going to my garage and i will get back to you guys.

rossco

[Toddman]

FACT! - No jumpy pedal NO abs.

The thing is the BX abs system is a VERY good one and unlike many other cars it is independant of the normal brakes so if any problems occur with the abs the std brakes should just operate as a non abs BX would - trouble is many newer cars have cheaper abs systems which affect the std brakes when they are not working correctly - hence why the MOT guys get upset when they see an abs warning lamp on in our cars
The pad wear indicator does absolutely nothing other than light a bulb when the pads are low.

Cheers
Luke

[thanuttiscotsman]

hello all,
ok i have a real big apology to make to averyone i have argued with recently in this thread. today i tested my car and it skidded every time i rammed on the brakes. but i can still honestly say it has never done that before the way it did today. im thinking it has fooled me bacause maybe before the disks were rusty and couldn't actually lock on. and because im banned from driving i very rarely drive these days.(only where i can leagally do it) im guessing my wheels didnt lock much before because the diks etc but after my drag racing event i think i gave the disks a good clean as every time i slammed them on taday the wheels locked every time. but i swear they didnt before. i think im maybe a bit out of driving practice. but anyhow i would like to appologise to alsn s and a few other people who know who they are for argue'ing with them about abs i should have listened to them but i was convinced by my cars previous behaviour that my abs was working. but after driving my car them my friends 200zx turbo i seen an immediate difference in the brakes. anyhow my bad im sorry, please dont be too offended,

rossco

[AlanS]

I'll live; I was more concerned about you flying off into the scrub with the fateful words echoing across the countryside......

"Oh sh*t, they don't work properly after all!!"

As I said, I had a feeling you're brakes were not operating at 100% efficiency rather than doing what they should. Glad you found it the easy way and not the other.


Alan S

[thanuttiscotsman]

hi there,
puy well thats another thing to put on the to do fix it list.

cheers rossco

[robin hughes]

well the ABS is now sorted. After testing all 4 sensors and finding nothing wrong we cleaned the connections to the ABS block and still no luck. It turned out to be a faulty ABS controller (ecu) taken car for a test run and all is fine now