4G
TPC detected open when commanded closed.
TPA has detected the TPC open after power up. Run test o00, cycle keyswitch to clear.
Possible weak battery, intermittent open of 750amp fuse, fuse relay card malfunction has been known to cause crazy faults. Contactor tips could be pitted\worn. Manual statesif all twata pass, replace TPA, which is doubtfully bad, but I have been wrong aboutnthat in the past.