OBD-II trouble code
P05AE: Active Grille Air Shutter B Performance/Stuck Off
Application matters: Ford’s 2024–2025 gasoline summary prints P05AE with P05B1_97 for its B-shutter performance example. Preserve that dated Ford context and use the installed vehicle’s complete code and component identification.
A performance/stuck-off condition is reported for the vehicle’s designated grille shutter B. Identify B and its recorded control result before choosing parts; the letter does not mean a fixed second location or a shared fault with shutter A.
Quick facts
- System
- Powertrain
- Category
- Active Grille Shutters
- Severity
- Medium severity
- Driving guidance
- Depends on symptoms and vehicle guidance
- Repair cost range
- Get a vehicle-specific estimate after diagnosis.
- DIY difficulty
- Shop recommended
A code alone cannot establish whether driving is safe. Stop safely for a red brake or oil-pressure warning, overheating, severe misfire, stalling, or impaired braking or steering, and follow the owner's manual. Restraints faults can reduce crash protection even when the vehicle runs normally.
Browse every code in P0500–P05AE, or start from the full code library.
What does P05AE mean?
P05AE concerns the active grille air shutter identified as B. The useful first distinction is which assigned assembly the report addresses, not an assumption that B is always lower, behind A or the second of exactly two units. The actual vehicle information must establish the component and its diagnostic path.
Ford’s July 2024 summary gives a B performance/stuck-off example under the P05AE/P05B1_97 pairing. Its assessment uses commanded-versus-actual final position during the stated operating or self-learning conditions. A physical position observed at another time does not, by itself, establish whether that monitored comparison passed.
Keep the B performance result distinct from P059F’s A subject. If both are recorded, preserve each full report and let the vehicle-specific diagnosis establish their relationship. Two letters alone do not prove a shared power feed, a common obstruction, two failed motors or a particular communication layout.
Performance reporting is also separate from the source’s B circuit/open, communication, overtemperature and supply checks. The presence of one kind of report does not prove that every other control or physical condition is healthy. A justified repair identifies the actual failed response or demonstrated contribution rather than selecting a motor, controller or complete assembly from the title.
Do not interpret stuck off as a universal fully-open or fully-closed position. Qualified service should assess the commanded state and feedback with the actual safety procedures. Keep clear of moving shutters and nearby fans; pushing, holding, unplugging or directly powering the assembly is not an owner diagnostic step.
Provide the saved scan, warnings, symptoms and any recent front-end work to the shop. Follow actual cooling and stop warnings, with assistance for overheating or unsafe operation. The code gives no guaranteed cooling fallback or permission for continued travel. Request a vehicle-specific itemized quote explaining diagnosis, the confirmed work and any required learning and confirmation.
Possible causes
- A confirmed performance or movement-response fault associated with the manufacturer-designated B assembly
- A demonstrated actuator, assembly or related control condition identified through the actual B-system diagnosis
Symptoms
- P05AE or its full manufacturer form stored for the B-shutter subject
- Other A/B or communication/supply reports that must remain individually identified
- Cooling or operational symptoms only if actually present on the vehicle
Diagnostic steps
Save the full scan report, code status, and available freeze-frame data before clearing anything. Confirm the reporting module, any failure-type suffix, and the procedure for the exact vehicle. The steps below are an overview; use manufacturer specifications and safety procedures for testing.
- 1.Retain the complete B report, available event information and any A or other companion codes before erasing them.
- 2.Have the shop identify the assigned B assembly and its correct monitor, using actual vehicle information rather than assumed A/B physical order.
- 3.Ask what commanded-position, feedback and companion-check evidence distinguishes the demonstrated fault. Do not assume that two stored letter codes share a cause.
- 4.Use qualified protected movement/circuit diagnosis; do not force blades, unplug components or follow a generic calibration/actuation sequence.
- 5.Have any confirmed part or other repair, required learning and final verification itemized. A temporary disappearance of the code is not enough to establish the repair.
Repair cost
Get a vehicle-specific estimate after diagnosis.
A trouble code alone does not price the repair. Ask the shop to identify the confirmed fault and itemize diagnosis, parts, labor, programming or calibration, and taxes.
Estimate your repair
Run the numbers for your vehicle
Open the Repair Cost Estimator with vehicle-specific fault and system diagnosis preselected. Adjust labor rate and vehicle category to fit your situation.
Related repairs
These links are planning examples; the code does not confirm that any listed part has failed.
DIY vs shop
A qualified shop is recommended because this can involve manufacturer-grade tooling, training, or certification that most home setups do not have. Ask the technician what testing confirmed the repair.