11-26-2018, 02:27 PM
(11-26-2018, 02:03 PM)GoldOxide_imp Wrote: I reckon there must be a firmware requirement too, unless it is already populated on all CB1100's , but disabled due to absent sensors/controller?
I suspect that the module has only one factory set program to pulse / modulate the pressure when the front and rear sensors read different.
The ECM is separate.
On ABS models, front and rear speed sensors connect to the modulator, which feeds speed to the meter.
On non ABS, rear speed sensor feeds directly to the meter (speedo).
Modulator connections are:
ground
battery
speed output to meter
diagnostics to DLC
rear VSP
rear VSP +
front VSP
front VSP +
brake switch input
SCS (serviced check short) to ECM B-19 / DLC
indicator lamp output
ignition power
So, there are no other sensors involved.
Interesting to dig into this.