Unless the odometer is flashing, you shouldn't need the Yellow Adapter, which won't work with Konnwei KW902.
- Left the humidity sensor unplugged
- Left the 12V and HV disconnected for 30+ hours
- Checked HV fuse continuity
- Made sure to reconnect HV per pics 3 to 6 of the sequence
- Checked for 12+ volts at the wires (in case of bad connection) or on OBD
- Cleared all faults in all modules incl. BPCM, OBCM, EVCM, PIM, etc.
- If still no clunk, reset contactors.
I tried to erase the codes. Three of the four wouldn't erase.With the key turned one click, a Konnwei will normally connect AlfaOBD to the BPCM like this (full-size pics in post #6 above):
Then read the status:
& scroll down to show the two critical numbers in the blue box I added:
Code erasing is step six in post #3 for a reason: Often false alarm codes won't clear until after steps 1 through 5 are completed, in sequence.I tried to erase the codes. Three of the four wouldn't erase.
For example one owner had the 12V battery die of old age & replacement didn't fix it so it was towed to a dealership who wanted over $600 just to run a scan, saying it was likely the PIM.Codes don't always have to clear in order for the car to work fine.