Then I put the eeprom back to the original BCU, but the car will still not start. the immo lamp is on all the time after ignition on. remote central locking does not works as well. BCI does not have any DTC, but ECM says P1610-Lock mode , and P1614-Chain of IMMU - KEY. I posted readout of eeprom (read as 93c66). Apr 16, 2020 · A # of days went by and was able to get a mobile locksmith out. He connected to the car and there were 3 codes: U1000, P1610, P1611, and a Transmission valve body code common to this year P0894 that shouldn't have any impact. These first 3 errors indicate CAN Bus issue, Lock Mode, IMMU Discord (whatever that means) respectively..