2004 04 RAM 1500 5.7L A/T ECU ECM PCM ENGINE CONTROL COMPUTER 56029158 TESTED GM ABS VIDEO We recommend matching the following

We recommend matching the following but believe your MB shop can update this: A 273 153 12 91

P56040346AF

It will usually blink for roughly 20 seconds

Most JTEC style ECU's do not have SKIM security and are plug and play

2004 04 RAM 1500 5.7L A/T ECU ECM PCM ENGINE CONTROL COMPUTER 56029158 TESTED GM ABS VIDEO We recommend matching the followingPart Number 56029158 automatic transmission models only! ECU has no OEM security. ECU has Federal emissions We offer FREE programming, see details below! **NOTE: There is some chipped plastic on the fourth connector see pictures. This connector is not used but we wantetd to make sure you were aware of it. Fitment Interchange This ecu will interchange or replace the following part numbers: 56029158AA 56029158AB 56029158AC 56029158AD 56029158AE