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Hi, I would like to ask for some advice/instruction from members who have a good knowledge of using a Nanocom.

I have the known message about ABS/Traction [control] Failure fault on the dashboard. I finally decided to buy a Nanocom, and I would like to ask where I would find the section on the Nanocom that deals with the ABS/Traction Failure ?

I know that I need to go to "R Rover P38" - "EDC", but then the next menu lists two types of what I presume are the values for ABS systems, Wabco C and Wabco D.

Where would I go at this point ? Perhaps someone could tell me if there are specific values to be aware of, or will Nanocom just report a fault as "Fault" somewhere ?

Pierre3.

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Wabco C up to 1998 model, Wabco D from 1999 onwards. Go into that and the top button is marked Faults, tap that and Read Faults, read what it is, then tap Clear Faults. If it comes straight back, then it is permanent. Beware though, the Nanocom ABS function can get it's left and right mixed up so if it says left sensor open circuit (or left sensor short to ground) it may actually be the right sensor.

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Hi Richard, thanks for your reply. So that clears up my question about Wabco.

I was reading Martin Cox's information on his P38 website, where he discussed the ECU, and I saw that he said the same thing as you about the message - "'Rear Right sensor short to another sensor" - or something similar. I did look at Nanocom's emulator on their website and I can see where you have explained the page on the reader.

What is strange, and I haven't been under the car as I don't have a garage to get into and the weather is bleeding cold, is that, so far, I have been able to clear the fault message by using the EAS switch to lift and lower the vehicle when the message appears. Also, if I clear the message by doing the suspension lift and lower the message stays away - until I leave the car parked for two weeks or more. If I have driven the car at least once a week it seems to stay away, until something unusual happens.

I am wondering whether this is a loose connection or a damaged cable. There hasn't been anything done under the vehicle except for a gearbox oil change about 5 months ago, but the ABS message didn't appear until about 3 months ago.

Pierre3.

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Oh, Richard, I forgot to ask - looking at Nanocom's emulator there appears to be an option to turn off the dashboard warning lights. As the vehicle is due an annual car test next Monday will this option allow me to switch off the dashboard warning lights to get through the car test ?

Pierre3.

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It certainly sounds like you have an iffy connection to one of the sensors. They have plugs that should be held in clips on the chassis, but they are a bit of a bugger to get to as they are behind the inner wheelarch liner. If anyone has ever been in there before it is quite possible they didn't put them back into the clips so the cable could have chaffed against something. Sounds like you've got similar weather to here, far too cold to be outside laying on the ground under the car. I've got an ABS Fault/Traction Failure error on the Ascot but just ignore it for the moment. The brakes work, it's only the ABS and traction control that won't.

Answering your question on the dark side, on the BBS website there is a separate document for each system with what readings you should expect to see. EDC (diesel) is a bit odd as there is only the one entry. With a Nanocom licensed for a V8, if you have a GEMS licence, the only option you have for ABS is Wabco C as all GEMS cars used the C system, while a unit licensed for Motronic (Thor) will only show you the Wabco D option, you'd never see both and have to choose which one.

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Richard, I bought the Nanocom for the diesel, my vehicle is a DHSE. I have the EDC licences.

Any idea about the option to turn off the warning lights with Nanocom ?

By the way, I was just reading some old posts by yourself on the opposition forum, 2018, discussing the ABS accumulator failure 😅.

Pierre3.

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A dead accumulator will only cause the warning lights to come on when you hit the brakes. It stores pressure in a sphere with a diaphragm across the centre with Nitrogen at high pressure behind it. Over a period the Nitrogen leaks out so you have no stored pressure, hence the pump has to cut in to raise the pressure as soon as you use the brakes. You can't turn those lights off with the Nanocom, or, if you can, they will come straight back as soon as you use the brakes again.

My point about the EDC licence is that you've got a licence for your engine type and a second one for the other P38 subsystems but it will only show systems that you actually have. Hence no mention of Wabco D if you have a GEMS licence as the GEMS never had the D system, but as the diesel is the same licence for all years it gives you the option of either depending on the year of the car. However, the ABS document from BBS tells you which you will have from the year of the car.

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Thanks for your help, Richard. Hopefully, I will be able to get the warning lights to go off either with looking through the faults with the Nanocom, or else using the up and down method again !!!

I will have a look at the BBS website and see what it says there. Thanks again.

Pierre3.

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Yes, I have found the details for the different models on the Black Box registered user webpages.

Pierre3.