The ECM supplies VREF at Pin X1–14 (engine connector) and at X4–4 (chassis connector) when the ignition switch is on. Fault Detection / Management There…

The function diagram for the VREF includes the following: • Engine Oil Pressure (EOP) sensor • Exhaust Back Pressure (EBP) sensor • Manifold Absolute Pressure…

The VGT actuator receives power at Pin 1, through the 12-pin connector Pin 10, from the ECM main power relay Pin 87. Ground for the…

The function diagram for the VGT actuator includes the following: • VGT actuator • Electronic Control Module (ECM) • Accelerator Pedal Position sensor and Idle…

The function diagram for the tachometer output circuit consists of the following: • Remote tachometer • Electronic Control Module (ECM) • Camshaft Position (CMP) sensor…

The function diagram for the SCCS includes the following: • Electronic System Controller (ESC) • Electronic Control Module (ECM) • Steering wheel cruise control switches…

DTC 256 RSE OCC fault • DTC 256 is set by the ECM when the OCC test has failed after the KOEO Standard Test has…