Cumminz

Cummins ISB CM550 (1990-94) Fault Code: 264 PID...

Circuit DescriptionThis fault indicates a final defect of the temperature sensor. The sensor’s reading indicates an unrealistic value, or the temperature is outside of the signal range check thresholds, -45°C...

Cummins ISB CM550 (1990-94) Fault Code: 264 PID...

Circuit DescriptionThis fault indicates a final defect of the temperature sensor. The sensor’s reading indicates an unrealistic value, or the temperature is outside of the signal range check thresholds, -45°C...

Cummins ISB CM550 (1990-94) Fault Code: 261 PID...

Circuit DescriptionThe fuel temperature sensor is located in the fuel pump. Fuel temperature information ispassed to the engine control module (ECM) through the controller area network datalink. Component LocationThe fuel...

Cummins ISB CM550 (1990-94) Fault Code: 261 PID...

Circuit DescriptionThe fuel temperature sensor is located in the fuel pump. Fuel temperature information ispassed to the engine control module (ECM) through the controller area network datalink. Component LocationThe fuel...

Cummins ISB CM550 (1990-94) Fault Code: 2559 PI...

Circuit DescriptionNormally, switches, accelerators, and other components are connected to the engine controlmodule (ECM) directly through individual wires. Multiplexing allows those same components tobe hard wired to an original equipment...

Cummins ISB CM550 (1990-94) Fault Code: 2559 PI...

Circuit DescriptionNormally, switches, accelerators, and other components are connected to the engine controlmodule (ECM) directly through individual wires. Multiplexing allows those same components tobe hard wired to an original equipment...

Cummins ISB CM550 (1990-94) Fault Code: 243 PID...

Circuit DescriptionThe electronic control module (ECM) enables the exhaust brake by sending a signal to therelay that controls the exhaust brake under certain conditions. Component LocationRefer to the original equipment...

Cummins ISB CM550 (1990-94) Fault Code: 243 PID...

Circuit DescriptionThe electronic control module (ECM) enables the exhaust brake by sending a signal to therelay that controls the exhaust brake under certain conditions. Component LocationRefer to the original equipment...

Cummins ISB CM550 (1990-94) Fault Code: 245 PID...

Circuit DescriptionThe fan clutch solenoid is a device used by the ECM to control the engine fan by sending asignal to open or close the fan clutch solenoid. Component LocationRefer...

Cummins ISB CM550 (1990-94) Fault Code: 245 PID...

Circuit DescriptionThe fan clutch solenoid is a device used by the ECM to control the engine fan by sending asignal to open or close the fan clutch solenoid. Component LocationRefer...

Cummins ISB CM550 (1990-94) Fault Code: 242 PID...

Circuit DescriptionThe vehicle speed sensor (VSS) uses two separate coils of wire (some applications use asingle-coil sensor) to count gear teeth as they pass in front of the sensor. One...

Cummins ISB CM550 (1990-94) Fault Code: 242 PID...

Circuit DescriptionThe vehicle speed sensor (VSS) uses two separate coils of wire (some applications use asingle-coil sensor) to count gear teeth as they pass in front of the sensor. One...

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