Has anyone hooked up an OBDII scanner or linked a laptop via a connector to a Discovery 1997? I have spent quite a bit of time looking at OBDII information and believe it could tell me which one of my wheel speed sensors are failing (ABS comes on after the vehicle has been inactive for a while, mostly at slow speeds.)

The problem is that none of the protocols I see listed for the connector match my pin setup - my Discovery seems to have pins in the ODB2 connector at positions 1,2,4,9,10,12, and 13. This matches none of the protocols that are described below:

PWM The connector must have pins 2, 4, 5, 10, and 16
VPW The connector must have pins 2, 4, 5, and 16, but not 10.
ISO The connector must have pins 4, 5, 7, and 16. Pin 15 may or may not be present.
CAN The connector must have pins 4, 5, 6, 14, and 16.

The ODBII laws say that all vehicles sold in the US after 1996 have to be ODB2 compliant - is the Discovery simply a different protocol, is it not compliant, or am I missing something?

The only other thing I can think of is that I may not have been looking at the correct connector - but the connector I found was under the right hand side of the steering wheel, out in the open, was 16 pin, and looked right...

Any help is greatly appreciated - I'm a new owner, love my Discovery, and just fixed the cruise control tonight based on info I found in this forum

Thanks much,
Charles Harvey

 

I am not sure this will work on your '97, as it may be a different arrangement from my '95. If it is the same as the '95 and the '96, there will be a blue five port plug connector under the cardboard bottom cowling/kick plate by the driver seat. You are going to want to jumper the black and the black/pink wires.

I tried to attach the the .pdf file with the full procedure, but can't as the system only accepts jpgs. I have converted to a jpg, but the quality is a bit rough. If you have trouble viewing it, send me a message with an outside email address, I will email the .pdf to you. The file is about 3.4 MB, so hotmail and some of the 'free' services probably won't take it.

Good Luck

 

you need testbook. You can only read the obdII codes if there is no compliant obdII code it won't show anything, But you could still have a code only testbook will read it.

 

Mike,

You can use the flash codes to diagnose where the errors are on the D1's. By jumpering as suggested, you watch the ABS indicator and it will tell you where the error in the ABS system is. You can then use a multimeter on the indicated faulty part to see what the failure is.

 

I think I saw a site where you can buy an OBD II connector for the Disco. I have OBDI on mine, so was never really interested... I will see if I can find it.

 

I just bought one from autozone for $69, and it works fine on my Discovery. They will even hook theirs up to your rig if you want to make sure it is compatible before you buy if you want to be sure. Here is a link to Land Rover specific codes: http://www.troublecodes.net/landrvr/

Al