New Problem ABS, Traction control, Hill Descent Light came on - Land Rovers Only

smileyq · 03-21-2006, 07:59 AM

This morning on my way to work I went over a speed bump at about 2 mph and my disco starting beeping and my ABS, Traction control (TC), and Hill descent lights all came on. Obviously this means that non of these features are now active and are having problems. What is the first thing I should check when I get home tonight? The ironic thing about this is I just have my disco serviced for its 45k service last Friday so they obviously missed something. Thanks for the help.

OkieRover · 03-21-2006, 08:34 AM

I'm gonna guess...and I mean GUESS....speed sensor on one of the wheels.

Disco Mike · 03-21-2006, 08:35 AM

No, they probably didn't miss anything, sometimes this happens and it may reset it self during the next couple of restarts. If not, that doesn't mean the ABS isn't working, it just means it picked up a momentary fault and stored a code. Mine went off 6 months ago and I finally had the system scanned and cleared the codes, during the time the lights were on my ABS worked fine.
So, it is not a saftey issue and you should get it back to the dealer while it is under warranty just in case you shock a senser loose.
Good luck,
Mike

OkieRover · 03-21-2006, 09:05 AM

So was I right????

Sweet!!! j/k I would like to know when you find out.

smileyq · 03-21-2006, 09:29 AM

I'm going to check it out when I get home tonight. And if I can't find anything wrong I will contact the dealer and get it in there. I'll do some break test when I get home tonight to see if my ABS is still working properly. Thanks for the updates. So far I've hard its either the sensors or maybe the shuttle valve or possibly even bad rotors. But I should feel the vibration in my brake pedal if my rotors are bad though right?

Disco Mike · 03-21-2006, 09:59 AM

You can tell pretty easily if the ABS is working, even if it is, get the dealer to check for codes, this way, if it happens again and you have a record of it happening at the dealer, you can get it fixed while under warranty.
Mike

drum655 · 03-21-2006, 10:10 AM

how can i tell if the abs is working? just wondering...

Disco Mike · 03-21-2006, 11:24 AM

The easiest way is not very scientific but it works.
Get on a nice quiet road, with no one behind you and get on the brakes hard at around 35 or so. If the ABS is working, you will feel your barke pedal pulsate as the ABS activates. Do it hard enough to try and lock up the tires.
Mike

smileyq · 03-21-2006, 02:29 PM

You can also usually tell if you are going over and speed bump and break while your on top your ABS will freak out.

smileyq · 03-21-2006, 06:17 PM

Well after work got in the disco and started her up and all was fine no lights nothing. Drove about 18 miles headed home and bamo (beep beep) lights come on again. Stop at the gas station, turn it off, go in get some cokes , come back out start her up again and lights gone no problem. I bet good money on the way to work in the morning at about the same spot it will beep and light up like a Christmas tree again. The fuse looks good must be either the ABS mod, or the sensors going bad. I'm going to call Land Rover Nashville tomorrow and make an appointment. I'll let you guys know what they find.

Disco Mike · 03-21-2006, 06:24 PM

I'll bet money, you have a loose or dirty speed sensor.
Let us know how it turns out.
Mike

smileyq · 03-21-2006, 06:29 PM

Quote:

Originally Posted by Disco Mike

I'll bet money, you have a loose or dirty speed sensor.
Let us know how it turns out.
Mike

I've been looking at my workshop manual and am I right by saying you have to remove the hub to check out the sensors? Is this an easy fix?

Disco Mike · 03-21-2006, 07:06 PM

Quote:

Originally Posted by smileyq

I've been looking at my workshop manual and am I right by saying you have to remove the hub to check out the sensors? Is this an easy fix?

Let the dealer run his test book and they can tell you what is wrong without tearing anything apart.
Mike

smileyq · 03-24-2006, 02:31 PM

And the winner is.........
a faulty shuttle valve. Replaced it bled the system and they claim its as good as new. I'm going to beat it up a little bit this weekend to see if all is well. Again thanks for the help. This is the best Forum on the web in my opinion. You guys rock!

03-21-2006, 07:59 AM	#1 (permalink)
smileyq Senior Member Join Date: Feb 2006 Location: Nashville, TN Posts: 653 Gallery: 0	New Problem ABS, Traction control, Hill Descent Light came on This morning on my way to work I went over a speed bump at about 2 mph and my disco starting beeping and my ABS, Traction control (TC), and Hill descent lights all came on. Obviously this means that non of these features are now active and are having problems. What is the first thing I should check when I get home tonight? The ironic thing about this is I just have my disco serviced for its 45k service last Friday so they obviously missed something. Thanks for the help. __________________ "Good saddles ain't cheap, and cheap saddles ain't good."

03-21-2006, 09:29 AM	#5 (permalink)
smileyq Senior Member Join Date: Feb 2006 Location: Nashville, TN Posts: 653 Gallery: 0	I'm going to check it out when I get home tonight. And if I can't find anything wrong I will contact the dealer and get it in there. I'll do some break test when I get home tonight to see if my ABS is still working properly. Thanks for the updates. So far I've hard its either the sensors or maybe the shuttle valve or possibly even bad rotors. But I should feel the vibration in my brake pedal if my rotors are bad though right? __________________ "Good saddles ain't cheap, and cheap saddles ain't good."

03-21-2006, 10:10 AM	#7 (permalink)
drum655 Moderator Join Date: May 2005 Location: Newnan, GA Posts: 955 Gallery: 0	how can i tell if the abs is working? just wondering... __________________ Moderator of the East Coast and Discovery 2 sections! 2001 Disco II SE w/CDL ~Equipe 4x4 Winch Bumper ~Custom steel rear bumper ~Equipe 4x4 steering skid and radiator skid ~RTE rocksliders ~QT services front and rear diff guards ~2" RTE lift ~265/75 r16 Federal Couragia MTs ~Superwinch X9 ~Safety Devices Roof Rack

03-21-2006, 02:29 PM	#9 (permalink)
smileyq Senior Member Join Date: Feb 2006 Location: Nashville, TN Posts: 653 Gallery: 0	You can also usually tell if you are going over and speed bump and break while your on top your ABS will freak out. __________________ "Good saddles ain't cheap, and cheap saddles ain't good."

03-21-2006, 06:17 PM	#10 (permalink)
smileyq Senior Member Join Date: Feb 2006 Location: Nashville, TN Posts: 653 Gallery: 0	Well after work got in the disco and started her up and all was fine no lights nothing. Drove about 18 miles headed home and bamo (beep beep) lights come on again. Stop at the gas station, turn it off, go in get some cokes , come back out start her up again and lights gone no problem. I bet good money on the way to work in the morning at about the same spot it will beep and light up like a Christmas tree again. The fuse looks good must be either the ABS mod, or the sensors going bad. I'm going to call Land Rover Nashville tomorrow and make an appointment. I'll let you guys know what they find. __________________ "Good saddles ain't cheap, and cheap saddles ain't good."

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03-21-2006, 08:35 AM	#3 (permalink)
Disco Mike Moderator Join Date: Aug 2004 Location: Parker, Colorado Posts: 5,494 Gallery: 0	No, they probably didn't miss anything, sometimes this happens and it may reset it self during the next couple of restarts. If not, that doesn't mean the ABS isn't working, it just means it picked up a momentary fault and stored a code. Mine went off 6 months ago and I finally had the system scanned and cleared the codes, during the time the lights were on my ABS worked fine. So, it is not a saftey issue and you should get it back to the dealer while it is under warranty just in case you shock a senser loose. Good luck, Mike

03-21-2006, 09:59 AM	#6 (permalink)
Disco Mike Moderator Join Date: Aug 2004 Location: Parker, Colorado Posts: 5,494 Gallery: 0	You can tell pretty easily if the ABS is working, even if it is, get the dealer to check for codes, this way, if it happens again and you have a record of it happening at the dealer, you can get it fixed while under warranty. Mike

03-21-2006, 11:24 AM	#8 (permalink)
Disco Mike Moderator Join Date: Aug 2004 Location: Parker, Colorado Posts: 5,494 Gallery: 0	The easiest way is not very scientific but it works. Get on a nice quiet road, with no one behind you and get on the brakes hard at around 35 or so. If the ABS is working, you will feel your barke pedal pulsate as the ABS activates. Do it hard enough to try and lock up the tires. Mike

03-21-2006, 06:24 PM	#11 (permalink)
Disco Mike Moderator Join Date: Aug 2004 Location: Parker, Colorado Posts: 5,494 Gallery: 0	I'll bet money, you have a loose or dirty speed sensor. Let us know how it turns out. Mike

03-24-2006, 02:31 PM	#14 (permalink)
smileyq Senior Member Join Date: Feb 2006 Location: Nashville, TN Posts: 653 Gallery: 0	And the winner is......... a faulty shuttle valve. Replaced it bled the system and they claim its as good as new. I'm going to beat it up a little bit this weekend to see if all is well. Again thanks for the help. This is the best Forum on the web in my opinion. You guys rock! __________________ "Good saddles ain't cheap, and cheap saddles ain't good."

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