17-07-19, 03:50 PM
I'm not sure about the correct model years. At least the RN01/RN04 designators should fit.The major difference is that RN04 controls the fan via sensor (identical to the FZ1 gen1), RN01 does not.The RN09 sketch is not of relevance here, I just quickly picked what I had available. If I remember correctly the RN09 was the first model introducing a digital bus, no chance to get it working.
The mileage is stored inside the cockpit, seems to be a lucky coincidence
Anyway, it would be not very difficult to correct it.
The speedo sensor (3-wire) gets its 12V-supply from the dashboard. Just check the presence at the far end to be sure. Also the ground wire.
The speedo signal (white) reqires a load to work correctly (open collector output type). This load sits inside the dashboard (~2k resistor tied to 5v). Without sensor you should measure 5V on this line (direction towards cockpit).
If all is plugged in take a voltmeter and check the signal on the white cable. It should jump between 0V and 5V while rotating the rear wheel. About 40 pulses per revolution.
The mileage is stored inside the cockpit, seems to be a lucky coincidence
Anyway, it would be not very difficult to correct it.The speedo sensor (3-wire) gets its 12V-supply from the dashboard. Just check the presence at the far end to be sure. Also the ground wire.
The speedo signal (white) reqires a load to work correctly (open collector output type). This load sits inside the dashboard (~2k resistor tied to 5v). Without sensor you should measure 5V on this line (direction towards cockpit).
If all is plugged in take a voltmeter and check the signal on the white cable. It should jump between 0V and 5V while rotating the rear wheel. About 40 pulses per revolution.