00 GRAND CHEROKEE 4.0L A/T ECU ECM PCM ENGINE CONTROL COMPUTER 56041638AI TESTED

Part Number 56041638AI ECU has no security enabled - you will have black or metal keys. We offer FREE programming, see details below! Fitment/Interchange This ecu will interchange or replace the following part numbers: 56041638AB56041638AC56041638AD56041638AE56041638AF56041638AG56041638AH56041638AIP56041638AIR6041638AI56041638 Tech Notes ECU has been tested with our state of the art vehicle simulator which tests over 25 circuits of the ECU! Some of those are listed below: Reference Voltage Good! ECU powered up and has communication! ECU fuel pump/main relay test good! ECU injectors/coils test good and much more! Install Notes Disconnect the negative terminal of the battery. Make sure the battery connector is not touching the battery post. Disconnect and remove the module to be replaced. Install and connect the replacement module. Connect the negative terminal of the battery. See "Programming" below for additional in