Warning light and bell for sls

I have searched for this problem but no-one seems to have the same symptoms as my Disco.

In normal driving conditions and for no apparent reason teh SLS warning light will come on and the alarm tone sound. There is no evidence that the truck is riding high or low or that the compressor is working at all or overtime.

Sometimes the problem is worse in wet weather but not exclusively.

If I stop and turn off the ignition then the system usually (but not always) seems to reset and off we go again. Sometimes the problem will recur immediately.

After switching on the ignition again the truck will raise and lower on demand but not whilst the warning light is lit.

On left hand bends, if taken at a bit of speed so inducing some body roll the warning bell stops sounding although the light remains on.

I haven't replaced the airbags recently althoug have done so in the past and there is no evidence of a leak anywhere. I haven't yet tried cleaning sensors or swapping them over or anything like that.

Does anyone have any idea what may be wrong and what I might try to fix it?

This forum has been very helpful with my previous woes (not many to be honest) and I hope you may be able to be so again.

Many thanks

Ian

the best and safest thing is to read the stored fault codes with dedicated tester.... it'll save you a lot of struggle ... see nanocom locator

the simplest thing u can do for the beginning is to check for water ingress at the SLABS ECU/BCU area...it's quite common but IMO there's something with the SLS management though

sierrafery said:

the best and safest thing is to read the stored fault codes with dedicated tester.... it'll save you a lot of struggle ... see nanocom locator

the simplest thing u can do for the beginning is to check for water ingress at the SLABS ECU/BCU area...it's quite common but IMO there's something with the SLS management though

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Thanks fro the reply. Looks like my problem is unique - so I'd better get down to the local specialist and get the computer fault codes read.

Ta.

Ian

HairBear said:

Thanks fro the reply. Looks like my problem is unique - so I'd better get down to the local specialist and get the computer fault codes read.

Ta.

Ian

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Hi Ian your problem is not unique at all. However tracing it's source is more of an issue.

As Fery says, reading the codes is always a good start, but read them with a pinch of salt. For example, if you get a ride height sensor fault, it could be a faulty component or it could be a dodgy contact with the electrical connector going to it.

If it were me, I would be doing the following:

1. Buy a can of aerosol Contact Cleaner, take the ride height sensor connectors apart, spray liberally and allow to dry. Then work the connectors a few times to ensure good contact and test drive.

2. Assuming problem remains. As they are not expensive even for genuine LR ones, I would replace both.

NB. It is essential to disconnect the main car battery earth before tampering with the electrical connectors - this applies to points 1 & 2.

Good luck

Dave

Hi Dave,

thanks for the very helpful reply. I had thought of doing as you suggested but without anyone else suggesting it didn't know if it would just be activity for the sake of it. I'll crack on with it at the weekend and post how It goes after a few days use.

Thanks again.

Ian

HairBear said:

Hi Dave,

thanks for the very helpful reply. I had thought of doing as you suggested but without anyone else suggesting it didn't know if it would just be activity for the sake of it. I'll crack on with it at the weekend and post how It goes after a few days use.

Thanks again.

Ian

Click to expand...

Hi Ian, don't forget to disconnect the battery neg lead before disconnecting the ride height sensors; or you'll end up with a whole of trouble

good luck
Dave