Disco 2 Hill decent light stuck on

Alandrea · Apr 7, 2019

Hi guys
Ive had my disco 2 td5 since it was pretty new an its now 20 years old.
Its got a strange fault that ive been puzzling over for close to a year now ... the green hill decent light is stuck on ... if you push the hill decent button it chimes everything seams to be working ok but the green light just will not go out ... hawkeye doesnt find anything and its been on snap on scanner as well which finds nothing ... any ideas please ? Not found anything online about this issue

sierrafery · Apr 7, 2019

So if you activate the HDC does it work as it should downhill?(it must be in low gear you know?) that's important to know cos it can be something which triggers only the warning without the system to be affected... do you have RAVE?

Alandrea · Apr 7, 2019

Many thanks for the reply

Everything seams to be working although its only been tested on a very steep hill not on slippy stuff as yet...
yup i have rave

sierrafery · Apr 7, 2019

If the systerm is working then it's possible to be only a warning lamp circuit issue, see RAVE- Electrical library - connector views, go to C0047 pin 23(White/pink wire) and pin 25(white/yellow) and measure voltage against body on them with needle probe in situ and report the result, if no voltage give 12V live with a wire in that pin and see if the lamp goes out or not...if there is voltage well speak again.... make sure you dont confuse it with C0067 near it by corroborating the wire colours with the pins cos the connectors are same shape and there are cases when theyr's position is the other way around

Alandrea · Apr 8, 2019

Mm so problem ive got is ive found the plug and it looks like different colour codes cant see a pink and white wire :-(

sierrafery · Apr 8, 2019

Who said about pink/white? cos pink/white is not the same with white/pink as the second colour in that "composition" is a thin trace

Alandrea · Apr 22, 2019

Is there an easier place to check this circuit ? Its a real pig to get to grrr

Alandrea · Apr 22, 2019

Ps ive finally got round to checking the hill decent on slippy steep hill and it worked perfectly

sierrafery · Apr 22, 2019

I thought that's the easyest place... others are in C0504-17 or C0233-10 same colour wire

Alandrea · Apr 27, 2019

At last managed to scramble about under the dash ... not easy at my age ... got 12v there buddy

Alandrea · Apr 27, 2019

It may also be useful to mention that the light does go out for a second or 2 when you first start the engine but then comes back on

sierrafery · Apr 27, 2019

Then unfortunately you'll have to check at C0233-10 too and if you also have 12V there the problem is within the instrument pack cos that 12V feed is supposed to switch off the warning lamp so if it gets untill the IP it means the problem is beyond that path

Alandrea · Apr 27, 2019

Wow nice fast reply buddy

let me guess c0233 is in another horrid spot ?

sierrafery · Apr 27, 2019

See the connector views... it's plugged into the IP...actually not a killer, 2 screws and the binnacle out

Alandrea · May 7, 2019

sierrafery said:
See the connector views... it's plugged into the IP...actually not a killer, 2 screws and the binnacle out

Hi sierra
You sir are a genius you were absolutely correct
After close to a year with the green light on the dash peeing me off a new set of clocks sorted it
Many thanks for your help buddy

Al

Disco 2 Hill decent light stuck on

Alandrea

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