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Home >> Chrysler >> 2021 >> Voyager LXi, Gas >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P1057 To P1D73 >> Diagnosis And Testing >> P1628-Sensor Reference Voltage 2 Circuit Erratic >> Possible Causes

Possible Causes

Possible Causes
5-VOLT SUPPLY CIRCUIT INTERMITTENTLY SHORTED TO GROUND
5-VOLT SUPPLY CIRCUIT INTERMITTENTLY SHORTED TO VOLTAGE
5-VOLT SUPPLY CIRCUIT INTERMITTENTLY OPEN
MAP SENSOR
CAMSHAFT POSITION SENSOR
CAMSHAFT POSITION SENSOR 2
ACCELERATOR PEDAL POSITION (APP) SENSOR
FUEL RAIL PRESSURE SENSOR
EXHAUST GAS RECIRCULATION (EGR) VALVE
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .