Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2018 Ford Taurus SEL, FWD, Gas/EthanolFACTORY OEM SERVICE PROCEDURE
Powertrain Control Module (PCM) DTC Chart
WARNING: This page is about a different car, the 2018 Ford EcoSport. However, it is still accessible from the selected car via links, so may be relevant.
| DTC | Description | Action |
|---|---|---|
| P059F | Active Grille Air Shutter "A" Performance / Stuck Off | GO to Pinpoint Test A |
| P05A1 | Active Grille Air Shutter "A" Position Sensor Minimum / Maximum Stop Performance | GO to Pinpoint Test A |
| P05A2 | Active Grille Air Shutter "A" Control Circuit / Open | GO to Pinpoint Test A |
| P05A7 | Active Grille Air Shutter Control Module "A" Supply Voltage Circuit Low | GO to Pinpoint Test A |
| P05C0 | Active Grille Air Shutter Module "A" Over Temperature | GO to Pinpoint Test B |
| U0046 | Vehicle Communication Bus C | GO to Pinpoint Test A |
| U0284 | Lost Communication With Active Grille Air Shutter Module "A" | GO to Pinpoint Test A |
| All other Diagnostic Trouble Codes (DTCs) | - | Refer to Engine System - General Information . |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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