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Cummins ISB CM550 (1990-94) Fault Code: 489 PID...

Circuit DescriptionThe auxiliary speed input is a frequency signal from an auxiliary speed or pressure pickup. It issent to the electronic control module (ECM) and is used to control the...

Cummins ISB CM550 (1990-94) Fault Code: 489 PID...

Circuit DescriptionThe auxiliary speed input is a frequency signal from an auxiliary speed or pressure pickup. It issent to the electronic control module (ECM) and is used to control the...

Cummins ISB CM550 (1990-94) Fault Code: 488 PID...

Circuit DescriptionThe intake manifold air temperature sensor is used by the electronic control module (ECM) tomonitor the temperature of the engine intake air. The intake air temperature is used by...

Cummins ISB CM550 (1990-94) Fault Code: 488 PID...

Circuit DescriptionThe intake manifold air temperature sensor is used by the electronic control module (ECM) tomonitor the temperature of the engine intake air. The intake air temperature is used by...

Cummins ISB CM550 (1990-94) Fault Code: 444 PID...

Circuit DescriptionThe remote accelerator supply circuit supplies +5 VDC for the remote accelerator and thecoolant level sensor. These circuits are connected inside the ECM. Faults on these circuitscould also affect...

Cummins ISB CM550 (1990-94) Fault Code: 444 PID...

Circuit DescriptionThe remote accelerator supply circuit supplies +5 VDC for the remote accelerator and thecoolant level sensor. These circuits are connected inside the ECM. Faults on these circuitscould also affect...

Cummins ISB CM550 (1990-94) Fault Code: 444 PID...

Circuit DescriptionThe remote accelerator supply circuit supplies +5 VDC for the remote accelerator and thecoolant level sensor. These circuits are connected inside the ECM. Faults on these circuitscould also affect...

Cummins ISB CM550 (1990-94) Fault Code: 444 PID...

Circuit DescriptionThe remote accelerator supply circuit supplies +5 VDC for the remote accelerator and thecoolant level sensor. These circuits are connected inside the ECM. Faults on these circuitscould also affect...

Cummins ISB CM550 (1990-94) Fault Code: 443 PID...

Circuit DescriptionThe accelerator pedal assembly with accelerator position sensor relays the acceleratorpercentage requested by the operator to the electronic control module (ECM). Percentaccelerator is used by the ECM to determine...

Cummins ISB CM550 (1990-94) Fault Code: 443 PID...

Circuit DescriptionThe accelerator pedal assembly with accelerator position sensor relays the acceleratorpercentage requested by the operator to the electronic control module (ECM). Percentaccelerator is used by the ECM to determine...

Cummins ISB CM550 (1990-94) Fault Code: 443 PID...

Circuit DescriptionThe accelerator pedal assembly with accelerator position sensor relays the acceleratorpercentage requested by the operator to the electronic control module (ECM). Percentaccelerator is used by the ECM to determine...

Cummins ISB CM550 (1990-94) Fault Code: 443 PID...

Circuit DescriptionThe accelerator pedal assembly with accelerator position sensor relays the acceleratorpercentage requested by the operator to the electronic control module (ECM). Percentaccelerator is used by the ECM to determine...

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