Indeed Don- doing our own TPMS handshake with a second set of wheels would be a great DIY tool. My dad had the same issue I originally did at a Discount Tire store, with the service manager claiming success on the data link, "just drive around a while for the light to go away"......
Yesterday's main item of business was to remove MR BEAN's battery charger/DC-DC assembly and replace it with a junkyard unit. Still waiting on the correct 400 VDC 20A fuse that goes into the inverter to test charging and DCDC function. Without that fuse, the contactors click as normal and the battery fan blows for a few seconds, then nothing... I have not found a source outside the Mitsu dealer for the the $38 fuse , and ordering on Thursday for "Overnight Shipping" would allow me to pick it up at the dealer on Monday, and of course I should order two... I'm still looking for a properly-rated fuse that I could just put some pigtails on for testing purposes... I'm only dreading the prospect of a VIN-Locked charger.
The component swap was pretty painless, lost only about a cup of coolant. Was able to break loose the hoses by prying with a screwdriver while also pulling at different angles. Main thing to keep in mind is that the J1772 power input wires have no snap-together connector and land inside the charger on three screw terminals. Junkyards will ALWAYS cut that wiring bundle rather than open a sealed unit.
As expected, MR BEAN charges normally on CHAdeMO, and I'm keeping the house battery on an external charger, enabling almost-normal use!
The only errors I pulled from the MUT clone CarSoft i909 besides my four out-of-synch TPMS were as follows:
POA09 DCDC converter fail (oh, hence the red 12V error light)
P1A12 OBC abnormal stop (the charger stopped.. wow)
I found no zorch marks or other signs of failure inside the original charger, and will make it available if a member wants to attempt diagnosis and repair. I haven't pulled the upper boards to get a look at the DCDC converter yet...
2012 i-SE "MR BEAN" 102,600 miles
2000 Mazda Miata EV, 78 kW, 17 kWh
1983 Grumman Kurbwatt EV,170 kW, 32 kWh
1983 Mazda RX-7 EV 43 kW 10 kWh
1971 "Karmann Eclectric" EV 240 kW 19 kWh
1965 Karmann Ghia Cabriolet