Thread: Nanocom fault codes

There is an explanation of many of the Landrover codes and data for various systems at:
ECU/Software Module Information System

just select the system of interest from the menu on the left of the page.
Regards

Wow, that link is a great source of information, looks strangely familiar though
I would love to meet the guy who wrote all that as it seems like he might be a handy chap to have around to help.
Only jesting with you, I am of course always happy to help if i can.

The bit you need to read csongi is this:

It should also be noted that where some options such as air conditioning or cruise control are not fitted, the ECU can show the unused inputs or outputs up as if it were a fault

When we wrote the TD5 diagnostics back in 2001 IIRC, we discovered that the TD5 ECU stores faults related to un fitted hardware. I guess the fault code reading routine in the ECU does not have any capability to take into account what options are fitted or not and as such it just sees the connections as open, regardless of if it's a true fault such as a broken wire / bad connection or it just does not have anything connected on the end of it and never has from manufacture.

Its also interesting that you see the same faults occur in the logged and current bytes. IE byte 10 (a logged fault byte) has bits 1 to 5 set, and its partner 14 (Current fault byte) has the same bits set except bit 2, so you can easily dismiss all the faults as due to non fitment except 10-2 and 31-01, and in fairness, i am guessing that you do have a fuel pump and an Injector 1 fitted.
The fact that the fuel pump drive has been going open load and is only logged rather than current suggests that the fuel pump keeps disappearing which is not good and it seems that Injector 1 is currently not connected at all, making your engine more of a TD4 than a TD5 which might account for a rough idle and loss of power and torque.

Interestingly, the TestBook, asks the user if each optional item is fitted and then based on the answers, masks out the appropriate fault codes.

We could have tried to implement something similar, but our system is not designed to do that sort of thing and our philosophy is and has always been to show absolutely everything, exactly as it truly is. So we choose simply to high light the oddity of these codes in the help pages of our system.

Sadly it seems to few bother to read these pages, even although we actually publish them on line so that all potential purchasers can see exactly the level of detail our system offers. And so i am especially impressed Gary, that you have noted their presence and worth.