Mitsubishi Outlander AC Compressor
The Outlander PHEV has a CAN bus controller AC compressor. One thing to note, your old system components will likely need flushing of the old oil as it's damaging to compressor motor wiring lacquer. It can cause shorts. When getting your system refilled, it needs to contain compatible lubricating oil, POE MA68EV is listed in the manual, likely the same as other hybrids/electric cars.
| Weight | 6.2kg |
| Length | 19cm |
| Height | 20cm |
| Width | 12cm |
3D scans are here: https://grabcad.com/library/outlander-phev-ac-compressor-1 this appears to be of an older model than the one in the photos below. The photos are from a 2018 model year vehicle.
Refrigerant Connections
The part numbers for the Mitsubishi hoses are AMD45418, AMD46168. Unconfirmed, but thought that these fit https://www.evcreate.nl/shop/airconditioning/adapter-set-airconditioning-compressor/ The correct fitments on Aliexpress
https://www.aliexpress.com/item/1005001688953296.html R134 4 curved and R134 5 curved was what I ordered, so 11.5mm and 14mm.
Low Voltage Connection
The mating connector is Sumitomo 6189-0126 https://www.auto-click.co.uk/6189-0126?search=90980-10942 and the pinout is the same as the water heater. Connector also available cheap on aliexpress.
High Voltage Connection
The compressor is connected with a 40amp fuse to high voltage. Older models don't have the HV socket as shown above, but have the wire attached. Polarity is the same as the heater.
Newer models have a socket. [Place holder for part number]
Control Messages
0x185 controls the compressor and 0x285 is also required for operation, much like other outlander components. It broadcasts a few ids, 0x388 seems to be useful and contains it's status.
0x185 - Control Message
The first byte, byte 0 controls the state of the compressor 0x08 is standby and 0x0B is start command
The second byte, data[1] doesn't seem to have a function.
The third byte is unknown but 0x1D works.
The forth and fifth also seem to not do anything.
Sixth byte is RPM control, 0x08 is inactive, 0x09 to 0x54
Seventh is also unknown, 0x00 works
Eighth is also unknown either 0x00 or 0x03 work
0x388 - Status Message
First byte, 0x01 is HV present. 0x02 is No HV present, 0x7C is startup/running.
Third and Fourth bytes seem to be RPM feedback.
Eighth byte status 0x00 is no CAN, 0x01 CAN error, 0x02 is 0x285 receive error and 0x03 other error
Example control code
void sendCANframeE() { //AC compressor
outframe.id = 0x185; // 0x185 0B 00 1D 00 00 08 00 03
outframe.length = 8; // Data payload 8 bytes
outframe.extended = 0; // Extended addresses - 0=11-bit 1=29bit
outframe.rtr=1; //No request
if(digitalRead(AC_pin) == LOW) { //AC pin is active
outframe.data.bytes[0]=0x0B; // status command 08 stbd, 0B start
}
else {
outframe.data.bytes[0]=0x08; //if we sense LOW we go to standby
}
outframe.data.bytes[1]=0x00; //
outframe.data.bytes[2]=0x1D; // 1D works
outframe.data.bytes[3]=0x00; //
outframe.data.bytes[4]=0x00; //
if(digitalRead(AC_pin) == LOW) { // AC is active
if (ACrpm <= 3800) { // Power for spinup
outframe.data.bytes[5]=0x25; // RPM command 08 to 54
}
else if ((ACrpm > 3500) && (ACrpm <= 4200)) { // power is reduced
outframe.data.bytes[5]=0x20; // RPM command 08 to 54
}
}
else {
outframe.data.bytes[5]=0x08; //AC pin is inactive
}
outframe.data.bytes[6]=0x00;
outframe.data.bytes[7]=0x03; // can be 00 or 03, it does not differentiate
if(debug) {printFrame(&outframe,1);} //If the debug variable is set, show our transmitted frame
if(myVars.CANport==0) Can0.sendFrame(outframe); //Mail it
else Can1.sendFrame(outframe);
This thread contains more detail information and is recommended reading: https://openinverter.org/forum/viewtopic.php?t=1997&start=25