Disco2 auto - flashy lights

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Peter Harrison - 16 Feb 2008 00:55 GMT

So there I am, 200 miles from home, already annoyed at having to change
a tyre after finding a surprisingly blunt lump of metal had penetrated
the front nearside tyre. Back in, on with the ignition and...

The Manual and Sport lights blink away at me in a particularly mocking
fashion. Handbook says it is an electrical fault in the auto box.
Undaunted, I shift all the levers, turn it all on an off a couple of
times, start and stop the engine a few times. Finally the ECU gets the
message - I will not be put off by a few blinky lights - gives in and
lets me drive off with no warning lights.

Any idea how bad this is going to turn out to be? Is it simply a loose
wire or connector? If something were fundamentally buggered, I would
hope that the lights would still be lit and I would have come home on a
tow truck.

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Dougal - 16 Feb 2008 10:34 GMT

> So there I am, 200 miles from home, already annoyed at having to change
> a tyre after finding a surprisingly blunt lump of metal had penetrated
[quoted text clipped - 11 lines]
> hope that the lights would still be lit and I would have come home on a
> tow truck.

Snap! Mine was one of the switches external to the gearbox.

Some times you can travel for miles without a problem, next you'll have
to reset in the manner you described three times in a mile (if you bother).

I don't think that you'll ever be totally immobile and I concluded (once
I'd found out what was the cause) that it was a non-damaging incident.

Other symptoms will be that once the lights start to flash you are left
in one of the limp home modes with a high gear selected and in torque
convertor drive. Progress off the line can be painfully slow.

There appears to be some history behind this and water ingress to the
switch has occurred. Other models have been affected. Obviously, water
ingress to the connector/wiring may have similar effects.

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Peter Harrison - 16 Feb 2008 11:44 GMT

>> So there I am, 200 miles from home, already annoyed at having to
>> change a tyre after finding a surprisingly blunt lump of metal had
[quoted text clipped - 13 lines]
>
> Snap! Mine was one of the switches external to the gearbox.

Which switch? And where can I find it?

> Some times you can travel for miles without a problem, next you'll have
> to reset in the manner you described three times in a mile (if you bother).
[quoted text clipped - 5 lines]
> in one of the limp home modes with a high gear selected and in torque
> convertor drive. Progress off the line can be painfully slow.

Yup - that sounds familiar.

> There appears to be some history behind this and water ingress to the
> switch has occurred. Other models have been affected. Obviously, water
> ingress to the connector/wiring may have similar effects.

So I suppose fording won't have helped :)

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Dougal - 16 Feb 2008 17:39 GMT

>>> So there I am, 200 miles from home, already annoyed at having to
>>> change a tyre after finding a surprisingly blunt lump of metal had
[quoted text clipped - 15 lines]
>
> Which switch? And where can I find it?

Mine (2002 MY) was the gear position/park inhibit switch UHB100190 -
mounted at the gearbox end of the gearbox control cable. Someone else
had the responsibility for sorting mine so I didn't get my hands dirty
but it looks as though setting up a replacement switch requires a
'tool'. It would probably be worth checking the plug/socket for the
switch before delving further.

>> Some times you can travel for miles without a problem, next you'll
>> have to reset in the manner you described three times in a mile (if
[quoted text clipped - 7 lines]
>> left in one of the limp home modes with a high gear selected and in
>> torque convertor drive. Progress off the line can be painfully slow.

How TomTom can live with this permanently I don't know. Utterly
exasperating especially when towing. Requires low box to pull away on
occasion. Mine eventually didn't even have to get wet to be a problem.

> Yup - that sounds familiar.
>
[quoted text clipped - 3 lines]
>
> So I suppose fording won't have helped :)

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tomtom - 16 Feb 2008 16:18 GMT

Mine has been like that for 5 years, I just dont bother about it, that is
what was said to me by our local LR dealers techie. It was out of warranty
and he said ignore it, its just when the switch gets wet/damp

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> So there I am, 200 miles from home, already annoyed at having to change a
> tyre after finding a surprisingly blunt lump of metal had penetrated the
[quoted text clipped - 11 lines]
> that the lights would still be lit and I would have come home on a tow
> truck.

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