Disco 2 Shuttle switch nanocom readings /inputs

neilly · Mar 20, 2017

Hi,

So I have pasted onto the BBS nanaocom forum pages , but as I know it is not a highly trafficked site I will also ask here.

As posted on nanocom forum

Reading the SLABS ECU manual on here it gives the Shuttle Switch inputs on the SLABS Ecu as open Circuit / both open / one closed / both closed / short to ground.

But when I look on the nanocom evo, it only shows a value, when brake pedal is released it is approx 152 when pedal pushed down it is approx 52.

Why does the manual not tally with what the screen is showing me. How do you correlate the screen info to help trouble shoot the problem?

This is on the offchance someone already has the answer to this question.
Seems that the SLABS manual on their website is a little out of date.

Cheers

sierrafery · Mar 20, 2017

Hi, first of all why do you ask that? do you have a SVS fault code logged?...cos then i can explain why you get those readings otherwise it's strange

neilly · Mar 20, 2017

Just a case of the manual does not match the readings in any way shape or form.

No Fault logged. If there was a fault logged I would have said so .

Cheers

sierrafery · Mar 20, 2017

In this case it's a software glitch IMO cos the readings are actually good from one point of view: that the value of pedal depressed is around 1/3 of pedal released which is OK only the values are not ok cos they should be close to 3K and 1K so if you consider that nanocom shows normal value/20 then it's OK as well

...as the SVS is not at fault these are the only two readings you can see by depressing the pedal cos you can't simulate the "one closed" scenario only if you remove the switch pack and open or short circuit are in case of a SVS circuit fault

neilly · Mar 20, 2017

sierrafery said:
In this case it's a software glitch IMO cos the readings are actually good from one point of view: that the value of pedal depressed is around 1/3 of pedal released which is OK only the values are not ok cos they should be close to 3K and 1K so if you consider that nanocom shows normal value/20 then it's OK as well...as the SVS is not at fault these are the only two readings you can see by depressing the pedal cos you can't simulate the "one closed" scenario only if you remove the switch pack and open or short circuit are in case of a SVS circuit fault

I had already got that far in my own thoughts and investigation SF..LOL....I now what it should measure if I was to use a meter across the switch.... Which is why I was checking what the car read , because the manual states it will show OC / BO / OC/ BC which is what I have written above. But it does not show this.

The question is, Why does what is written in the manual not agree with what is shown on the screen? Has anyone ever questioned this?

Does a nanocom show the value /20? or is this a guess?

Have you got a nanocom to verify the inputs on and see what read outs you get.?

Cheers

sierrafery · Mar 20, 2017

Went out to the garage and checked, nanocom shows exactly like you said between 150-152 released and 51-52 depressed then checked with hawkeye too and as usual this one is accurate, displayed nicely with capitals "BOTH OPEN" and "BOTH CLOSED" .... insist on nanocom site for that, untill then you can consider both open =152 and both closed = 52

... i though that most of the glitches were fixed with firmware upgrades but it seems there are some left

neilly · Mar 20, 2017

Cheers SF,

Will wait for the BBS boys to reply on their site. Not sure how they can be finding these issues after such a long time.

Disco 2 Shuttle switch nanocom readings /inputs

neilly

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sierrafery

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neilly

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sierrafery

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neilly

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sierrafery

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neilly

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