P063C JEEP – Generator Voltage Sense Circuit Low

P063C JEEP Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P063C JEEP Possible Causes

Faulty Alternator,Alternator harness is open or shorted,Alternator circuit poor electrical connection,Faulty Powertrain Control Module (PCM)

P063C JEEP Description

The Powertrain Control Module (PCM) monitors the Generator (Alternator) voltage output. The PCM sets the OBDII code if the alternator output voltage is less than the Battery feed circuit voltage.