16 April, 2025 Cummins ISB CM550 (1990-94) Fault Code: 768 PID: SID 009 SPN: 923 FMI: 11 Output Device Driver (Trransmission Shift Modulation) Circuit DescriptionThe output device driver is a device used by the electronic control module (ECM) to control thetransmission shift modulation...
16 April, 2025 Cummins ISB CM550 (1990-94) Fault Code: 779 PID: SID 051 SPN: 703 FMI: 11 OEM Input – Engine Protection Circuit DescriptionThe OEM device input to engine protection allows vehicle OEMs to wire up a device, such as ahydraulic oil...