Pinpoint Test(s)
The Active Grille Shutter is Inoperative or Does Not Operate Correctly
Normal Operation and Fault Conditions
REFER to: Active Grille Shutter - System Operation and Component Description (501-02 Front End Body Panels, Description and Operation).
DTC Fault Trigger Conditions
DTC | Description | Fault Trigger Conditions |
|---|---|---|
P059F Active Grille Air Shutter "A" Performance / Stuck Off | When the grille shutter actuator senses it is unable to move the grille shutter, it sends a message to the PCM via the LIN. The PCM sets this DTC when the fault is communicated for a predetermined amount of time. | |
P05A1 Active Grille Air Shutter "A" Position Sensor Minimum / Maximum Stop Performance | When the grille shutter actuator senses it is unable to obtain a fully open or closed position of the grille shutter, it sends a message to the PCM via the LIN. The PCM then sets the DTC when the fault is communicated for a predetermined amount of time. | |
P05A7 Active Grille Air Shutter Control Module "A" Supply Voltage Circuit Low | When the grille shutter actuator senses low voltage, it sends a message to the PCM via the LIN. The PCM sets this DTC when the fault is communicated for a predetermined amount of time. | |
U0046 | Vehicle Communication Bus C | This DTC sets when the PCM detects a short to voltage, ground or open in the LIN. |
U0284 | Lost Communication With Active Grille Air Shutter Module "A" | When the PCM does not receive communication from the grille shutter actuator for a predetermined amount of time, the PCM sets this DTC. |
Possible Causes
Fuse Wiring, terminals or connectors Grille shutter actuator Active grille shutter PCM
Visual Inspection and Diagnostic Pre-checks
Verify BJB fuse 85 (15A) is OK. Make sure the grille opening does not have any debris or other obstructions that inhibit operation of the grille shutter. Make sure the grille shutter actuator electrical connector is not disconnected.
PINPOINT TEST A : THE ACTIVE GRILLE SHUTTER IS INOPERATIVE OR DOES NOT OPERATE
CORRECTLY
A1 RETRIEVE THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
Ignition ON. Using a diagnostic scan tool, perform PCM self-test.
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.