Three Amigos Variation no. 219

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Honestly, I’ve been through every Landie forum on the planet and I can’t find an answer to this; hopefully someone here’s had the same problem and can point me in the right direction.

It’s the amber HDC light. It comes on when I hit about 2000rpm. It goes out when you ease off the throttle, then after about 20 minutes of this it stays on permanently. Not good on the mountain roads we drive about on as you tend to keep looking at the bloody light instead of concentrating on the hairpins and 500 feet drops. It doesn’t generally effect the engine revs, but on occasions, when idling, there’s a variation between about 800 and 1400 rmp.

Familiar so far? Sounds like a job for Bulletin 0029! Er, no, actually. I set the throttle cable to the recommended distance: no change. I then went through every variation from gnat’s-arse tight to witch-tit slack: no change. Fiddled about with every variation on the throttle pedal stop: no change. Revved it from the engine end: light still comes on/off, so it doesn’t seem to be the pedal. An engine management system issue? It’s been on the test equipment twice this last month and no faults diagnosed. Don’t really want to have to do this again as the nearest dealer is 150 miles away by sea.

Anyone got any bright ideas? You can’t even tape it over satisfactorily with black insulation tape and it’s major surgery to get behind the dashboard to pull the bulb out……..
 
Does sound a bit wierd. If the light's coming on I'm suprised there's no fault code. Are you sure the kit being used to read it will pick up codes off the Freelander?

I'd imagine that it is on the throttle side rather than the braking side if its changeable dependant on revs - so the throttle sensor sounds sensible as a possible problem.
 
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