WARNING LIGHTS ON

[buster uk]

Hi all,
hope someone can help me.I had my range rover stuck in a very deep muddy field,for about an hour it was over axle deep in mud,i eventually got it out but for some reason the ABS light and traction control light is on.

Do you think this is due to the fact that the sensors maybe gunked up with mud ?
I power washed it all underneath and looks clean again but the lights are still on.

Any ideas please
thanks
andy

[barmiebrumie]

:( hi, disconnect all the wires & clean with wd40, should do the trick,

hope this helps,

  john.

[buster uk]

hi,thanks for the reply,which wires do i take off  and clean ? the ones near the wheel ?

[barmiebrumie]

hi, any that could of got wet,  
thanks john.

[Garth]

Also check that all the wires are still connected

[buster uk]

i took the wheels off and used a wire brush on every thing and got all the big bits off,then used an airline and blew it all out in the back of the disk where the trigger rings are for the abs and still no joy.I did all four hubs.
They look really clean now.I suppose taking the disks off would be best but i really went at them with the air line.I traced the wiring for a short distance allong the axle and all looks fine.I checked the fuses in the passenger seat base for the abs and traction control and they are all ok.

Any more ideas ? :?

[Range Rover Blues]

The front sensors are enclosed in the CV housing but the rears are exposed, on the back of the disk, so mud is a possibility.  BUY A MANUAL, there is an easy self-test procedure for the ABS, unlike the engine ECU.

[jnoshea]

 BUY A MANUAL, there is an easy self-test procedure for the ABS, unlike the engine ECU.

I have the factory workshop manual for the discovery and all I can find is "Check the ABS electrical ciruit with Testbook diagnostic equipment". Are you referring to a different section than I'm looking at or a different manual?

[buster uk]

I have a haynes and one on the computer and the haynes says take to dealer and the one on the computer says testbook diagnostic equipment.

I actually drove quite fast and stomped the brake pedal as hard as i could and the ABS works.It does say in the rangerover handbook that it will still work but the affected wheel wont.It s doing my head in now,i wonder if its something to do with the traction control as that light is on also.

[Range Rover Blues]

Traction control and ABS are the same thing.  As for the test prodedure I'm going to try and find it this afternoon.  I know I read itr somewhere but not having ABS I didn't take much notice.

[buster uk]

ok,thanks.your help appreciated  :D

[Range Rover Blues]

Page 13.81 of the Haynes manual.  You need to make a small test plug first, it describes how.  The test codes can identify wiring faults, sensor shorts/open circuits and no signal at all from a sensor.  It will tell you which sensor too (cool).  Also cabable of giving you the bad news that it's something far more expensive.

[jnoshea]

Page 13.81 of the Haynes manual.  You need to make a small test plug first, it describes how.  The test codes can identify wiring faults, sensor shorts/open circuits and no signal at all from a sensor.  It will tell you which sensor too (cool).  Also cabable of giving you the bad news that it's something far more expensive.

That's perfect...now all I need is a Haynes manual  :oops:

[buster uk]

thanks very much for the info,i will go and dig the haynes out.I will keep you informed.
cheers
andy

[rokcrawlin]

thanks very much for the info,i will go and dig the haynes out.I will keep you informed.
cheers
andy

i have heard that on the later classics the light needs to be turned out by the test book and cooking the abs/traction control will keep its light on until it is reset

[buster uk]

the lights are still lit but the ABS isnt working now.Nor is the traction control.I will try and reset it like the haynes says.

[Range Rover Blues]

I don't know about the Disco but on the RRC the warning light flashes the fault code once you plug in the test plug.  It keeps flashing it until you disconnect the plug ast which point it clears the fault memory.  If you then re-connect the test plug a second fault may be indicated if recorded, and so on.

It's possible that mud could cause a temporary fault that goes away even though the ABS is still indicating a fault.

Another trick is the old switch-it-off-then-switch-it-back-on routine, disconnect the ABS by eitehr the battery or fuses and leave for a few days, see if it stops sulking at you.

Buster, I hope it turns out to be something cheap.  How do you know the traction control doesn't work

[buster uk]

hi range rover blues,
Thanks for the reply  :D
I got my new mud terrain bfg's on and couldnt resist an off road play :twisted:  So i know thats not playing ball.
I will try taking the battery off,i didnt think that would work but its worth a try.

[buster uk]

hi guys,i actually cured this a while ago and forgot to report back.
I read the fault codes and recorded them and then reset them using the procedure in the haynes manual and its fine now.The ABS ecu was just sulking because of the abuse i gave it when i got stuck.Its really easy to test and reset the faults,took about 20 mins to do.

cheers
andy