Well, I just put a new battery in the truck (Needed one regardless of this problem) and no fix. Sits around 13.5-13.4ish with no headlamps or accessories on while driving down the road, and low to mid 12's with headlamps and accessories. Onto the next thing I suppose.

 

actually if you read the current LR bulletin which has been out for about four years then you will notice the shuttle valve includes the module part of the abs modulator. takes an hour to change and bleed and fixes all the problems.

 

And I'm pretty sure that was the first link I posted:

Land Rover parts, spares, Land Rover accessories - Search results for SWO500040

 

Better look for a replacement alternator cause your's isn't cutting it.

 

Since this has pretty well turned into an alternator bash, it's perfectly fine.

 

Who said we are bashing your alternator, facts are your voltage under load is way out of range for a D2. Low voltage will cause many different issues with any of the ECU's.

 

I'm not worried about bashing of an alternator, it's not like I built it or really care about it. It is however not what is causing this issue, unfortunately seeing as that would make it an easy fix.

 

Spike555 posted a pic recently indicating the major grounds. Does anyone have that diagram? I want to check and clean my grounds tommorow.

 

Well, I've got it where the voltage will stay in the 13's now with every light on at idle.

 

What did you do?