Cummins ISB CM550 (1990-94) Fault Code: 422 PID: 111 SPN: 111 FMI: 2 Colant Level Sensor Circuit Coolant Level Sensor Circuit
Cummins ISB CM550 (1990-94) Fault Code: 429 PID: 97 SPN: 97 FMI: 4 Water-In-Fuel (WIF) Sensor Circuit
Cummins ISB CM550 (1990-94) Fault Code: 431 PID: 91 SPN: 91 FMI: 2 Idle Validation Switch (IVS) Circuit
Cummins ISB CM550 (1990-94) Fault Code: 431 PID: 91 SPN: 91 FMI: 4 Idle Validation Switch (IVS) Circuit
Cummins ISB CM550 (1990-94) Fault Code: 432 PID: 91 SPN: 91 FMI: 13 Accelerator Pedal Circuit (ISS)
Cummins ISB CM550 (1990-94) Fault Code: 433 PID: 102 SPN: FMI: 2 Intake Manifold Pressure Sensor Circuit
Cummins ISB CM550 (1990-94) Fault Code: 434 PID: SID 251 SPN: 627 FMI: 2 Unswitched Battery Supply Circuit
Cummins ISB CM550 (1990-94) Fault Code: 441 PID: 168 SPN: 168 FMI: 1 Unswitched Battery Supply Circuit
Cummins ISB CM550 (1990-94) Fault Code: 442 PID: 168 SPN: 168 FMI: 0 Unswitched Battery Supply Circuit
Cummins ISB CM550 (1990-94) Fault Code: 443 PID: 91 SPN: 620 FMI: 3 Accelerator Position Sensor Circuit