Is DTC DTC P05A7, U0046 or U0284 present?
Yes | GO to A2 |
|---|---|
No | For DTC P059F or P05A1, GO to A7 For all other PCM Diagnostic Trouble Codes (DTCs), Refer to the appropriate section in Group 303 for the procedure. |
A2 CHECK THE VOLTAGE SUPPLY TO THE GRILLE SHUTTER ACTUATOR
Ignition OFF. Disconnect: Grille Shutter Actuator C1651. Ignition ON. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C1651-3 | Ground |
Is the voltage greater than 11 volts?
Yes | GO to A3 |
|---|---|
No | VERIFY BJB fuse 85 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the cause of the circuit short. |
A3 CHECK THE GRILLE SHUTTER ACTUATOR GROUND CIRCUIT FOR AN OPEN
Ignition OFF. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C1651-1 | Ground |
Is the resistance less than 3 ohms?
Yes | For DTC U0046 or U0284, GO to A4 For DTC P05A7, GO to A9 |
|---|---|
No | REPAIR the circuit. |
A4 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN
Ignition OFF. Disconnect: PCM C1551B. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C1651-2 | C1551B-50 |
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.