No tach or speedo after BDM pdm install???

VTwin HP

VTwin HP

New Member
Hey guys..I just finished up an install of a BDM pdm on an 2007 Pitbull....w an autometer gauge. Everything on the bike works except the tach and the speedo...the speedo lights up and the needle moves when it gets power...all the indicator lights on the gauge work so the gauge is getting power but no signal for both. There is power going through the 3 prong jst connector red, green , black. any help or suggestions would be great.
Thanx Larry
 
firedog19

firedog19

Active Member
on my 04 the plug that houses the tach send had 2 green wires one is the tach send the other is the neutral light. I had to do a continuity check from the sending unit on the trans mission to see which is the neutral light and put it in the right place on the plug
 
VTwin HP

VTwin HP

New Member
There are 2 connectors that come from the main harness that are 3 pin green red black one plug goes to the ignition module and the other to the speedo sensor which are connected correctly. There is an open 3 pin plug green black red that comes out of the backbone...there are 2 that come out of the backbone the other connects to the tach.....I got this bike half way done with out the schematic. evrything has a home and works with the exception of the speedo and tach.......
 
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