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Cummins ISB CM550 (1990-94) Fault Code: 284 PID...

Circuit DescriptionThe engine speed sensor provides engine speed information to the engine control module (ECM). The sensor must be powered up by +5 VDC to operate. The sensor generates its...

Cummins ISB CM550 (1990-94) Fault Code: 284 PID...

Circuit DescriptionThe engine speed sensor provides engine speed information to the engine control module (ECM). The sensor must be powered up by +5 VDC to operate. The sensor generates its...

Cummins ISB CM550 (1990-94) Fault Code: 284 PID...

Circuit DescriptionThe engine speed sensor provides engine speed information to the engine control module (ECM). The sensor must be powered up by +5 VDC to operate. The sensor generates its...

Cummins ISB CM550 (1990-94) Fault Code: 284 PID...

Circuit DescriptionThe engine speed sensor provides engine speed information to the engine control module (ECM). The sensor must be powered up by +5 VDC to operate. The sensor generates its...

Cummins ISB CM550 (1990-94) Fault Code: 283 PID...

Circuit DescriptionThe engine speed sensor provides engine speed information to the ECM. The sensor must be powered up by +5 VDC to operate. The sensor generates its signals by sensing...

Cummins ISB CM550 (1990-94) Fault Code: 283 PID...

Circuit DescriptionThe engine speed sensor provides engine speed information to the ECM. The sensor must be powered up by +5 VDC to operate. The sensor generates its signals by sensing...

Cummins ISB CM550 (1990-94) Fault Code: 283 PID...

Circuit DescriptionThe engine speed sensor provides engine speed information to the ECM. The sensor must be powered up by +5 VDC to operate. The sensor generates its signals by sensing...

Cummins ISB CM550 (1990-94) Fault Code: 283 PID...

Circuit DescriptionThe engine speed sensor provides engine speed information to the ECM. The sensor must be powered up by +5 VDC to operate. The sensor generates its signals by sensing...

Cummins ISB CM550 (1990-94) Fault Code: 278 PID...

Circuit DescriptionThe electronic control module (ECM) enables the lift pump by sending a signal directly to thelift pump. The ECM fast-duty cycles the lift pump ON and OFF during cranking,...

Cummins ISB CM550 (1990-94) Fault Code: 278 PID...

Circuit DescriptionThe electronic control module (ECM) enables the lift pump by sending a signal directly to thelift pump. The ECM fast-duty cycles the lift pump ON and OFF during cranking,...

Cummins ISB CM550 (1990-94) Fault Code: 278 PID...

Circuit DescriptionThe electronic control module (ECM) enables the lift pump by sending a signal directly to the lift pump. The ECM fast-duty cycles the lift pump ON and OFF during...

Cummins ISB CM550 (1990-94) Fault Code: 278 PID...

Circuit DescriptionThe electronic control module (ECM) enables the lift pump by sending a signal directly to the lift pump. The ECM fast-duty cycles the lift pump ON and OFF during...