If testing the isolation at the center disconnect on the HV battery shows no issue, can there still be another possible isolation problem? My 2022 leaf keeps throwing the same start inhibition and HV battery isolation codes (P31E7 and P0AA6 EVC157) every time I charge my car and it reaches 86%. The EV Service warning message only comes on at that point, otherwise I can drive and charge my car normally once I clear the codes with my leafspy. I won't get the errors until I charge my car again and it hits 86%. My husband tested the voltage at that back seat access point and found no isolation issue, the voltage reading dropped steadily as normal. Any advice would be greatly appreciated as we live in The Bahamas and there is no Nissan EV service available.