Details on the wires/connectors/components I've cut out

Ok lets have a go at going over and covering the wiring process so far

Again, the imiev being used is a Japanese imported 2012 model M spec with the 10.4Kwh pack and Toshiba modules.

regarding the imievs wiring loom:

I initially had the whole cars wiring laid out on the ground (except for the heater and A/C compressor, i still had the A/C ecu and cabin control module plugged in), one by one I followed wires and if they went nowhere (there were quite a few) I cut them.

The wires that can safely be cut without effecting the drive-train performance are:

• All door wiring
• Headlights/Taillights (incl. all wires that lead into the rear hatch)
• Bonnet latch
• Wiper Motor
• Handbrake ground wire

• All wires from steering wheel EXCEPT the steering wheel position sensor, and thick key position (ignition) wires (steering wheel sensor is integrated into the CAN bus and must be kept connected. The dash will also indicate that the park/headlights are on once the wires are cut)

• Brake oil level sensor 
  
• Auto headlight leveling module (if you just remove the sensors it will give a dash warning)
  

•  On the interior fuse box there are a handful of wires that no longer need to be there.
  
  I didnt manage to get any good photos of the wires i cut before eveything was put in the BMW but here it is with no wires at all for reference. At the Top Left there is a connector that only needs one white wire out of the three wires, this leads to the A/C ecu and cabin controls.
  
  

The plug seen missing in the top part of this photo was removed completely with a plug next to it having the red wire cut, i cant remember where that lead to.

There were a whole bunch of wires on the side of this fuse box that could be cut, now i didn't get any good photos of the wires i cut, from memory there was one +12v for the dash and a ground.

When it comes to doing this on the fuse box you really just need to use common sense and follow the wires one by one to see where they lead before cutting them.

•  The QuickCharge Chademo HV wires and signal wires can be left out without any trouble, although the slowcharger j1772 must stay connected and grounded (there is a grounding location along the wires leading to the j1772)

These will give dash warnings but wont effect the drive-train:

• EPS
• SRS (unplug the module not just its components or it will send a fault code and shut down the car)
• Vacuum pressure sensor, this does not stop the car from going into a ready state, but will emit a constant beep from the dash until the sensor is plugged in and given vacuum, and the hand break dash light will either flash or stay on constantly i cant remember.

 DO NOT CUT OUT

• Unplugging the ABS will limit the drive-train to only responding to the throttle pedal and being extremely under powered, this can be done on a fully working imiev too by unplugging the ABS module, for me at least it didn't leave any error codes behind after plugging it back in.

• G,Yaw sensor must not be left out as this is on the CAN bus and prevent full drivetrain performance(positioned under the left front passenger seat)

•  Steering wheel sensor is integrated into the CAN bus too and car will not engage ready without it (Positioned around the steering column, the steering wheel/airbag module will have to be removed to get it out) 

 Even though the imiev will run fine without it I have not cut anything to do with the A/C or heater systems as i want to eventually get them working in this conversion. things like the Heaters pump or A/C pressure sensors have been kept wired in, although they are on a separate loom so aren't in the car right now

Please comment and let me know if i have left a component out or want something explained in more detail.

Fitting the electrical's in the Beamer

Progress is not happening very fast due to my studies and work but it is happening none the less, the current challenge is fitting all the iMIEVs various ECUs and wiring into the BMW.