ALKO Sensabrake IQ7 xtreme diagnostics
This information is for installers diagnostics use only and has come from my own experience.
It has not been verified by ALKO and may very well be incorrect.
Hopefully it is of some use to you. If you find something different or new info please let me know.
Evo in car kit.
I have come across 2 main issues with the EVO controller. For a while in the mid to late 2010s they had an internal fault and would often not recognise an actuator unit connected and so would not switch the red output wire to 12 volts. The actuator would click on and off but the compressor would not start. In some situations it would run when the engine was off but wouldnt run when the cars engine was running ( higher voltage??). Solution, swap out controller or put in a relay that turned on the red output wire to 12 volt when the ignition was on.
The second issue I have seen but only twice is that the smaller multi pin plug was wired incorrectly. It should be wired like in the pic below.
ALKO Sensabrake IQ7 EVO
The blue wire in the loom that goes to the back is the control wire.
When no actuator is present this rests on 9 volt.
With an actuator present this rests on 0.17 volt but raises to 0.8volt when the compressor is runnig
When pressure is applied via the brake pressure pad the out put varies up to full force at 3.9 volt
When the override button is used then 1.65 or 2.3 volts has been seen
The brown wire is the diagnostic wire.
This rests on 9.3 volt when compressor is running and 9.7 volts when stopped. This difference may simply be voltage drop from load through the unit.
If you dump all the air from the actuator the voltage drops to 0.6 and climbs to 0.8 as the compressor builds pressure. When the beeping stops the voltage goes back to 9.3 volts and then 9.7 volts when the compressor stops at full pressure.
Orange Wire is the brake light input and output.
This will input when the brake lights are on. It will output 12volts when the override button is pressed and stay on for 3 seconds
Yellow wire is the ignition sense and tells the EVO kit to turn on.
4 Pin plug
Red input wire. Goes direct to battery via a 30 amp self resetting breaker
Black wire is earth input and also runs to supply earth to 12 pin trailer plug
Red output wire in loom that runs to trailer plug/ actuator. It has 2 modes
When used with an IQ7 xtreme this switches to 12 volt when the ignition is turned on and the EVO kit detects an IQ& xtreme connected ( not sure how it detects xtreme unit. Maybe brown wire??
But if the EVO kit is being used with electric brake hubs this wire will now rest at 0 volts(?) and raise up to 12 volts (or more?) to run the electric brakes.
Internally in EVO controller this red wire is directly connected to the secondary short blue wire in the same 4 pin plug ( not the blue wire in the plug with brown, orange, yellow!!) so instead of using the red for electric drums you should probably run the secondary blue not that it makes any functional difference.
Secondary blue is the Electric drum brake output but is internally connected to the Red output wire as described above.
Brake Pressure pad. Although this is an 4 pin RJ connector only 2 wires are used and the other two are cut off under the heatshrink. It is a simple resistive pressure pan network.
Mouse override. I have not yet determined any diagnostic info from the mouse. except it will beep if the actuator is bellow half pressure. I think this is communicated n the brown wire voltage.
It will normally only beep once when no actuator is connected although my own system frequently beeps 5 times at start up and only occasionally once. I dont know why this is.
