Monster 696 speedo sensor connector - what do the 3 wires do

MrsC_772 · 25-06-2024, 08:31 PM

Primus (my original 696, bought in 2009 though a 2010 model) has once again decided it doesn't want me to know how fast I'm going or how far I've gone. Indicated mileage just over 80k, actual mileage now around 82k ish.

Having swapped the speedo sensor for a new one (I think I might now be on the 5th one), it stopped indicating speed and adding miles to the clock only around 40 miles later. This makes me & Andy think the problem may lie in the bike wiring, not the speedo sensor itself.

The wiring diagram in the 696 workshop manual shows 3 wires running from the plug to which the speedo sensor attaches:
- one runs to the ECU pin H3;
- 2 go to the clocks, to pins 4 and 19 in the connector at the back of the clocks.

It might help me (or any garage I decide to pay to take a look at the bike) if we can narrow down which wires might be broken or connectors furred up in diagnosing the problem.

Anyone know what the 3 wires do? Supply, ground and signal?

25-06-2024, 08:31 PM	#1
MrsC_772 Silver Member Join Date: Aug 2009 Location: Farnborough Bike: Multiple Monsters Posts: 713	Monster 696 speedo sensor connector - what do the 3 wires do Primus (my original 696, bought in 2009 though a 2010 model) has once again decided it doesn't want me to know how fast I'm going or how far I've gone. Indicated mileage just over 80k, actual mileage now around 82k ish. Having swapped the speedo sensor for a new one (I think I might now be on the 5th one), it stopped indicating speed and adding miles to the clock only around 40 miles later. This makes me & Andy think the problem may lie in the bike wiring, not the speedo sensor itself. The wiring diagram in the 696 workshop manual shows 3 wires running from the plug to which the speedo sensor attaches: - one runs to the ECU pin H3; - 2 go to the clocks, to pins 4 and 19 in the connector at the back of the clocks. It might help me (or any garage I decide to pay to take a look at the bike) if we can narrow down which wires might be broken or connectors furred up in diagnosing the problem. Anyone know what the 3 wires do? Supply, ground and signal?