Cumminz

Circuit DescriptionThe engine position sensor (EPS), the intake manifold pressure sensor, and the oil pressuresensor are powered by the same +5-VDC source and the same return in the electronic controlmodule (ECM). This supply is also used to operate the intake manifold temperature andcoolant temperature sensors. Component LocationThe +5-VDC sensor supply circuit is located in the sensor harness. See Section E of thismanual for the sensor locations. Shop TalkThese faults could also cause high- or low-voltage faults on the coolant temperature and intakemanifold temperature sensors.

Circuit DescriptionThe accelerator pedal assembly with accelerator position sensor relays the acceleratorpercentage requested by the operator to the electronic control module (ECM). Percent acceleratoris used by the ECM to determine fueling. In order for the accelerator position sensor to functionproperly, it is necessary that a good +5-VDC supply voltage is available. Component LocationThe accelerator position sensor is located on the accelerator pedal inside the vehicle cab.

Circuit DescriptionThe accelerator pedal assembly with accelerator position sensor relays the acceleratorpercentage requested by the operator to the electronic control module (ECM). Percent acceleratoris used by the ECM to determine fueling. In order for the accelerator position sensor to functionproperly, it is necessary that a good +5-VDC supply voltage is available. Component LocationThe accelerator position sensor is located on the accelerator pedal inside the vehicle cab.

Circuit DescriptionThe accelerator pedal assembly with accelerator position sensor relays the acceleratorpercentage requested by the operator to the electronic control module (ECM). Percent acceleratoris used by the ECM to determine fueling. In order for the accelerator position sensor to functionproperly, it is necessary that a good +5-VDC supply voltage is available. Component LocationThe accelerator position sensor is located on the accelerator pedal inside the vehicle cab.

Circuit DescriptionThe accelerator pedal assembly with accelerator position sensor relays the acceleratorpercentage requested by the operator to the electronic control module (ECM). Percent acceleratoris used by the ECM to determine fueling. In order for the accelerator position sensor to functionproperly, it is necessary that a good +5-VDC supply voltage is available. Component LocationThe accelerator position sensor is located on the accelerator pedal inside the vehicle cab.