JEEP · 2020-06-16
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one of the followingDTCs have been set: P0607 - ECU Internal Performance. P0506 - Idle Speed Performance Lower Than Expected.