OBD II and LR3

robertofollia

Well-known member
Aug 3, 2005
555
2
My home is where my Disco is
Hi all,
I am about to buy my first LR3 (but will keep my D2 v8, sure, so don't panic). I'll have to reduce the fleet (my cart-sprung 1992 LR Santana SWB, my D2 v8, and the 300 Tdi-powered RRClassic is too big)

My question is, I need a specific OBII data reader for the D3.
My ordinary actron CP9135 (I used on my D2) does not link with the D3, as it is CAN-based.

Do you know of any particular make/model of OBD II reader, CAN-based, that can work on the D3 (as the equus one or anything suitable)?

Thanks for your imput and happy land rovering!
 

nwoods

Well-known member
Apr 1, 2006
467
0
SoCal
www.nextstepdesigns.com
I don't think a normal OBDII reader will work with the LR3. AutoLogic can interface with it, but has very limited options on what it can do. The T4 Testbook seems to be the only thing the dealers and independant mechanics can use for software changes, resets, etc... Land Rover has graciously made the T4 available to indy's, but it costs tens of thousands of dollars (I'm not sure quite how much, but it's very expensive).

You might try pm'ing "10forcash" on the disco3.co.uk website. He was experiementing with differnent interface units a few months ago.

Good luck!
 

umbertob

Well-known member
Apr 26, 2007
230
11
Altadena, CA
I was looking at the just released FaultMate MSV (from the Rovacom guys), I have a Sport. It's relatively cheap. Like Nathan said though, until they develop its software a bit more there isn't much you can do on a canbus system like ours. I was dreaming of changing suspensions height in my garage as I please... ;) Not for now. Info from the manufacturer:

Before you consider purchasing a FAULTMATE MSV system even at it's December discount price, i wanted you to know what it can and cannot do.
When under ford ownership, Land Rover introduced the Discovery 3 (LR3) and the RRS.
However unlike the BMW technology based L322 (Mk3 RR) this was a totally new vehicle, at least diagnostic wise.
For the first time Land Rovers employed CAN busses extensively, over which all diagnostics are also done.
This demanded a total rethink and a whole new strategy for us.
As such for the last 3 years we have done little else but study LR / Ford CAN bus technology and communicatoins over it.
At the moment we know so much about this, i would say with some confidence that we are currently the leading experts.
One of the problems however is that although we now fullly understand and indeed master this CAN bus based communication technology and can achieve almost anything we wish with it, there is so much of it that introducing it in the form of our own diagnostic equipment in one go is near impossible. Indeed it may never be possible for any third party equipment manufacturer to provide a system fully capable of equalling or bettering the manufacturers own IDS system. But that won't stop us trying.

So firstly, you have to understand that while we are synonymous for producing nothing but the very best and most capable systems around, the software that we currently produce for these later CAN bus vehicles is therfore by no means extensive in terms of capability and functionality.
We produce software for every single system fitted on all variants of the vehicles, this can be up to 30 per vehicle and can be on either the high speed CAN bus, The low speed CAN bus or even on the fibre optic infotainment bus (MOST BUS)

For each system we cover the basics of vehicle diagnostic equipment requirements, which is to fully read and clear any of the sixty five thousand manufacturer specific fault codes along with causal, accessory and freeze frame data. It also handles not tested faults.
We also read out all the part number, vin and serial number type identification information.
On those systems carrying Car Configuration file data we also read this out and dispaly it for moduification as well as vehicle assembly code data.
Sorry if that sounds a bit heavy, its the sort of thing to get to learn all about when you get into diagnosing these vehicles.
We also allow the service reminder to be set reset as desired for time, distance and fuel usage.

It is our serious intent to add further capability and to specifically look into those settings features which are of particular desire to private owners, seat belt warning, key in warning, Engine power mapping, height adjustment, ride handling perameters etc. But we cannot give any guarantees as to if and when this might be.

The unit is about $1K for LR3 and RRS. You need to provide the laptop. http://www.blackbox-solutions.com/
 
Last edited:

SGaynor

Well-known member
Dec 6, 2006
7,148
162
52
Bristol, TN
robertofollia said:
Hi all,
I am about to buy my first LR3 (but will keep my D2 v8, sure, so don't panic). I'll have to reduce the fleet (my cart-sprung 1992 LR Santana SWB, my D2 v8, and the 300 Tdi-powered RRClassic is too big)

My question is, I need a specific OBII data reader for the D3.
My ordinary actron CP9135 (I used on my D2) does not link with the D3, as it is CAN-based.

Do you know of any particular make/model of OBD II reader, CAN-based, that can work on the D3 (as the equus one or anything suitable)?

Thanks for your imput and happy land rovering!

Yeah, CAN is just a new protocol for OBD-II; all cars (1996 on) in the US have to be OBD-II compliant, but only recently have vehicles been incorporating CAN protocol (about 2005+).

The newer readers have the capability to read CAN cars. Just look at the description of the reader, it should have CAN capability listed as a function.

I bought this Actron (CP 9175) for about $125 at AutoZone last year for my '03 Disco, specifically because it had CAN capability and didn't want to buy a new reader when I eventually bought a newer car (which I did in Sept for the wife).

http://www.actron.com/product_detail.php?pid=16309
 

expectthebest

Well-known member
Apr 13, 2005
366
0
Washington State
With Ford ownership, is there any ability of the local Ford dealer computer to talk with a LR? It seems like there would be some cross compatability. Since there isn't a dealer within 200 miles, it would be nice if something like this was possible.
 

SGaynor

Well-known member
Dec 6, 2006
7,148
162
52
Bristol, TN
No. Although LR is owned by Ford, the electronic systems are completely different. Other than reading engine codes (OBD-II), you've got to have Testbook or such (for BCU, ABS, etc.).

Note: In my post above, that is for reading engine codes only.
 

expectthebest

Well-known member
Apr 13, 2005
366
0
Washington State
SGaynor said:
No. Although LR is owned by Ford, the electronic systems are completely different. Other than reading engine codes (OBD-II), you've got to have Testbook or such (for BCU, ABS, etc.).

Note: In my post above, that is for reading engine codes only.

Land Rover doesn't make ownership very easy, do they?
 

SGaynor

Well-known member
Dec 6, 2006
7,148
162
52
Bristol, TN
expectthebest said:
Land Rover doesn't make ownership very easy, do they?

Hell, I'd say all the manufacturers are like that. Buy a Honda and you're still in the same boat - no ABS codes on OBD-II.

Actron has a reader for ABS codes, but it's domestic cars only. Since all the car builders use propritary codes for ABS, BCU, etc., it's a start. Maybe in a few years there will be a reader for our Rovers....
 

robertofollia

Well-known member
Aug 3, 2005
555
2
My home is where my Disco is
Thanks all for your input.

Umberto, I did not know things ere going to be so complicated relating to CAN protocols.

As usual, LR is turning us to their stealerships, and that does not only mean a great deal of money, it also means distance, time, for just a diagnostic. A sad thing.

With regards to my D2, my basic actron only read powertrain trouble codes, and something like that on a gas-engined V8 dsco3/LR3 would be welcome, as ABS faults are out of my scope.
Did anybody try any of the items listed if at least it linked with the truck's interface and tried to read something as powertrain codes? Because the reader that SGaynor says is a very nice one.

All the best

Robert