2011-2019 Explorer & Police Interceptor Power Liftgate Motor Problems and Diagnosis

Symptoms of a Failing Liftgate Motor

When a power liftgate motor begins to fail on a 2011-2019 Ford Explorer or 2013-2019 Ford Police Interceptor Utility, you may notice one or more of the following symptoms:

• Unusual Noises: Grinding, clicking, popping, or humming sounds coming from the rear pillars during operation are a common sign of a failing motor or stripped internal gears.
• Slow or Erratic Operation: The liftgate may open or close much slower than it used to, or it may stop and start intermittently.
• Failure to Open or Close: The liftgate may unlatch but fail to lift, or it may not close completely, leaving a gap. In some cases, it may not respond at all to the button press.
• Liftgate Opens and Reverses: A common issue is the liftgate starting to open or close, only to stop and reverse direction. This can be caused by a weak motor, a faulty position sensor, or an obstruction.
• Liftgate Won't Stay Open: If the motor can no longer support the weight, the liftgate may slowly drift down or slam shut unexpectedly after opening.
• Burning Smell: A distinct electrical burning smell from the rear of the vehicle can indicate an overheating or shorted-out motor.

Associated Diagnostic Trouble Codes (DTCs)

A professional scan tool that can read Body Control Module (BCM) codes may reveal specific issues. Common codes related to liftgate failure include:

• B144F:79-0A: Often indicates a fault with the driver's side liftgate motor or its position sensor.
• B144E:29-0A: Points to an issue with the position sensor, often logged alongside a motor fault code.
• U0230: Indicates a loss of communication with the Rear Gate Trunk Module (RGTM), which could be caused by a blown fuse or wiring issue.
• B144D, B1555, B1556: These codes can be stored in the RGTM when its software improperly senses the liftgate is ajar, leading to intermittent opening or false alarms.
🎬 Watch how to troubleshoot liftgate ajar and sensor issues.

Diagnosing the Real Problem: Motor vs. Module

Before condemning the motor, it's crucial to understand that many liftgate problems on these vehicles are not caused by a failed motor, but by software glitches or simple electrical issues. Following these diagnostic steps can save you hundreds of dollars.

Step 1: Perform a Power Liftgate Initialization (Reset)

The first and easiest step is to reset the Rear Gate Trunk Module (RGTM). This procedure, often called an initialization, can resolve many software-related glitches.

1. Turn the vehicle off.
2. Locate the fuse box (often in the passenger footwell).
3. Identify and remove the fuse for the power liftgate module. An alternative is to disconnect the negative terminal of the vehicle's battery.
4. Wait for at least 30 seconds to allow the module to fully discharge.
5. Reinstall the fuse or reconnect the battery terminal.
6. Manually close the liftgate completely if it is open. The system should now be reset. 🎬 Watch this video for more Ford liftgate module reset tips. Test its operation.

Step 2: Check for Blown Fuses

A blown fuse can cause the liftgate to become completely inoperative and may trigger a 'no communication' code (U0230). Specifically, check fuse #10 in the body control module, as a failure here can cut power to the RGTM.

The Critical Question: Does the Liftgate Motor Need Programming?

This is a key point of confusion. A replacement Trunk Lid Pull Down Motor itself does not require programming or flashing. It is a direct-fit, plug-and-play component.

However, the Rear Gate Trunk Module (RGTM) that controls the motors often requires a software update to fix operational problems. Several Technical Service Bulletins (TSBs) have been issued by Ford because the original RGTM software can cause the liftgate to become inoperative. In these cases, replacing the motor will not fix the problem. The vehicle must be taken to a Ford dealer or a well-equipped independent shop to have the RGTM reprogrammed with the latest software level.

Known Issues, TSBs, and Recalls

While there are no specific safety recalls for the liftgate motors on the 2011-2019 Explorer and Police Interceptor Utility, Ford has issued several TSBs related to the power liftgate system.

• SSM 49914: Pertains to various Ford models, including the 2020-2021 Explorer, where an inoperative power liftgate may be caused by RGTM software. The fix is to reprogram the module.
• SSM 49015: For 2020 Explorer/Aviator vehicles, this addresses intermittent partial opening of the liftgate or false anti-theft alarms due to RGTM software misinterpreting the latch signal. The solution is reprogramming the module.
• TSB 16-0102: For some 2016 Explorer models, this addresses the hands-free liftgate opening unintentionally due to software sensitivity in the actuation module, requiring a module replacement.

These bulletins highlight a pattern of software-related issues being the root cause of many power liftgate problems.

Buying a Used Trunk Lid Pull Down Motor

A used OEM motor is an excellent, cost-effective alternative to an expensive new part. Here’s what to look for:

• Verify the Correct Side: The left (driver) and right (passenger) side motors are different and not interchangeable. The most commonly discussed part numbers, BB5Z-14B351-A (for 2011-2015 models) and GB5Z-14B351-A (for 2016-2019 models), are both for the LEFT (DRIVER) SIDE. Always double-check the part number on your original motor before ordering.
• Inspect the Connectors: Ensure the electrical connector pins are straight, clean, and free of any green or white corrosion.
• Check for Physical Damage: Look for cracks in the plastic housing, bends in the spindle, or signs of heavy impact.
• Why Used OEM is a Good Choice: Used original Ford motors are built to the exact factory specifications for speed, torque, and electrical connections. This ensures they will operate smoothly with the vehicle's control module and the other original motor, which is not always the case with new aftermarket alternatives.

Replacement Cost Comparison

The cost to replace a power liftgate motor can vary significantly. Below are estimated costs to help you make an informed decision.

Frequently Asked Questions (FAQ)