The function diagram for the APS/IVS includes the following:
• APS/IVS
• Injection Control Pressure Regulator (IPR)
• Electronic Control Module (ECM)
• Variable Geometry Turbocharger (VGT)
• Injection Driver Module (IDM)
• Fuel injector
• ENGINE lamp (amber)
Function
The APS/IVS sensor is a cab mounted potentiometer sensor. When the APS receives a 5 V reference signal
and a ground from the ECM, a linear analog voltage signal from the sensor will indicate the operator’s
demand for power. The IVS provides 0 V or 12 V to the ECM as redundant signal to verify the pedal idle position.
