When I recently replaced the alternator on my September 2002 build (2003MY) D2a, I could not see any such sense wire from the alternators multiple at the back to the output stud on the alternator. I wonder if this was therefore changed for the later D2a models then? Or if a previous owner has already modified mine (but no signs of modification on the loom that was there).Quote:
Originally Posted by Sneaky
Looking at the wiring diagram from Rave for the 2000 D2 (page 15.1 in https://discoii.files.wordpress.com/...grams_2000.pdf ) and 2003MY (page 50 in https://discoii.files.wordpress.com/...ams_2003my.pdf ) I cannot see any indication of the sense wire going from the wiring looms multi-plug to the output pole of the alternator being show. The wiring diagrams show only two of the three wires from the multi-plug going to their respective locations away from the alternator. Looks like:
Brown/Yellow is the Warning Lamp - Ignition No Charge for the instrument pack.
White goes to Fuse 24 in the Cabin Fuse Box and then onto the Ignition Switch (key).
The third wire shown is the Brown that goes to the 150amp Fusable Link in the Fuse Box - Engine Compartment and then onto the battery. This would be the main output of the alternator.
The multi-plug is connector C0226 and the sense wire must be identified as C0226-3. The main output is C0034 which is presumably goes to.
Some interesting discussion that I found while looking for details on the C0226 connector (don't have Rave on my work laptop) at Discovery 2: Td5 Alternator plug wiring question. They're suggesting that the genuine/original/OEM alternators only have two wires and it's only aftermarket units that require the third.
Of note is that the Connector Details for C0226 only shows two wires being used of the three wire capable connector:
https://www.aulro.com/afvb/images/im...018/04/333.jpg
JohnnoK seems to provide a good summary at Discovery 2: Why is my Td5 eating fanbelts and I need a regulator pack - Page 2 :
Which means that the IN249 that Simon previously mentioned that he was looking to swap to is actually the standard replacement unit and therefore would have been unlikely to improve anything.Quote:
The regulator I had is for a Land Cruiser (spit) and is physically identical to the LR one, except the Cruiser one, if fitted to the Td5 leaves the charge idiot light on all the time because it needs the S terminal in the plug to be connected to the battery positive terminal. The LR only uses 2 of the 3 terminals...
This requires a connector modification to the Td5 plug with a pigtail lead to the + terminal lug because the LR is only 2 wires and not 3, a task that will be challenging due to the location of the plug and will cause hassles down the line if a genuine part is fitted later.
The old DENSO part number is 126000-2500 which is no longer produced, but I finally managed to track down the replacement part number thanks to Noel at Roverland and it is IN249, so those of you who gather and collect trivial info, feel free to file that number in your systems....https://www.aulro.com/afvb/images/im...013/05/468.jpg
Perhaps therefore the only way to get an improvement (higher output) is to swap out to the Toyota Land Cruiser 3 pin set up and add the sense wire to C0226 multi-plug wired back to the battery? Seems like more hassle than I could be bothered with...Quote:
Originally Posted by simonmelb
