Cumminz

Cummins ISB CM550 (1990-94) Fault Code: 373 PID...

Circuit DescriptionThis circuit provides a secondary fuel shutoff signal from the engine control module (ECM) to the fuel pump. Component LocationThe fuel pump is located on the back side of...

Cummins ISB CM550 (1990-94) Fault Code: 373 PID...

Circuit DescriptionThis circuit provides a secondary fuel shutoff signal from the engine control module (ECM) to the fuel pump. Component LocationThe fuel pump is located on the back side of...

Cummins ISB CM550 (1990-94) Fault Code: 373 PID...

Circuit DescriptionThis circuit provides a secondary fuel shutoff signal from the engine control module (ECM) to the fuel pump. Component LocationThe fuel pump is located on the back side of...

Cummins ISB CM550 (1990-94) Fault Code: 373 PID...

Circuit DescriptionThis circuit provides a secondary fuel shutoff signal from the engine control module (ECM) to the fuel pump. Component LocationThe fuel pump is located on the back side of...

Cummins ISB CM550 (1990-94) Fault Code: 372 PID...

Circuit DescriptionThis circuit is used for limp home acceleration if communication between the engine controlmodule (ECM) and fuel pump is lost. The circuit allows for a two-stage acceleration wherethere are...

Cummins ISB CM550 (1990-94) Fault Code: 372 PID...

Circuit DescriptionThis circuit is used for limp home acceleration if communication between the engine controlmodule (ECM) and fuel pump is lost. The circuit allows for a two-stage acceleration wherethere are...

Cummins ISB CM550 (1990-94) Fault Code: 372 PID...

Circuit DescriptionThis circuit is used for limp home acceleration if communication between the engine controlmodule (ECM) and fuel pump is lost. The circuit allows for a two-stage acceleration wherethere are...

Cummins ISB CM550 (1990-94) Fault Code: 372 PID...

Circuit DescriptionThis circuit is used for limp home acceleration if communication between the engine controlmodule (ECM) and fuel pump is lost. The circuit allows for a two-stage acceleration wherethere are...

Cummins ISB CM550 (1990-94) Fault Code: 369 PID...

Circuit DescriptionThe engine control module (ECM) receives a signal from the engine speed/position sensor. This signal is then sent to the fuel pump to indicate where top dead center is...

Cummins ISB CM550 (1990-94) Fault Code: 369 PID...

Circuit DescriptionThe engine control module (ECM) receives a signal from the engine speed/position sensor. This signal is then sent to the fuel pump to indicate where top dead center is...

Cummins ISB CM550 (1990-94) Fault Code: 368 PID...

Circuit DescriptionThe fuel pump uses an internal check to determine if the fuel injection pump can reach thecommanded timing. Component LocationThe fuel pump circuit is internal to the fuel pump....

Cummins ISB CM550 (1990-94) Fault Code: 368 PID...

Circuit DescriptionThe fuel pump uses an internal check to determine if the fuel injection pump can reach thecommanded timing. Component LocationThe fuel pump circuit is internal to the fuel pump....

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