DTC    P0651    Sensor Reference Voltage "B" Circuit / Open

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (NOZZLE VANE POSITION SENSOR - ECM))

INSPECT ECM (VC VOLTAGE)

CHECK HARNESS AND CONNECTOR (FUEL PRESSURE SENSOR - ECM)

INSPECT ECM (VC VOLTAGE)

CHECK HARNESS AND CONNECTOR (ELECTRIC EGR VALVE ASSEMBLY - ECM)

INSPECT ECM (VC VOLTAGE)

REPLACE TURBOCHARGER SUB-ASSEMBLY (NOZZLE VANE POSITION SENSOR)

CHECK WHETHER DTC OUTPUT RECURS (DTC P0651)

REPLACE COMMON RAIL ASSEMBLY (FUEL PRESSURE SENSOR)

BLEED AIR FROM FUEL SYSTEM

CHECK WHETHER DTC OUTPUT RECURS (DTC P0651)

REPLACE ELECTRIC EGR CONTROL VALVE ASSEMBLY (EGR VALVE POSITION SENSOR)

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE ECM

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED