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Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 106 (2.4L - DTCS P0339 To P0632) >> DTC Troubleshooting >> P05A4-Active Grille Air Shutter 1 Control Circuit High >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
LIN BUS CIRCUIT SHORTED TO VOLTAGE
HIGH RESISTANCE IN THE ACTIVE GRILL SHUTTER ACTUATOR POWER OR GROUND CIRCUITS
ALTERNATOR FIELD CONTROL CIRCUIT SHORTED TO VOLTAGE (OVERCHARGING)
ALTERNATOR
ACTIVE GRILL SHUTTER (AGS) ACTUATOR

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