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Home >> Jeep >> 2019 >> Renegade High Altitude, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1296 (2.4L - DTCS P0304 To P0643) >> DTC Troubleshooting >> P0622-Generator Field Control Circuit/Open >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
ALTERNATOR FIELD CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE
ALTERNATOR FIELD CONTROL CIRCUIT OPEN/HIGH RESISTANCE
ALTERNATOR FIELD CONTROL CIRCUIT SHORTED TO GROUND
POOR ENGINE BLOCK OR ALTERNATOR CASE GROUND
ALTERNATOR
POWERTRAIN CONTROL MODULE (PCM)

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