The APDTY 133931 Door Lock Actuator Motor is a direct-replacement front right (passenger-side) power door lock actuator designed for 1998-2005 Lexus GS300, 1998-2000 Lexus GS400, 2001-2005 Lexus GS430, and 2001-2003 Toyota Prius models. When your passenger door won't lock or unlock with the key fob or door switches, a failed actuator motor is the most common cause—and this part restores full electronic locking function without expensive dealer pricing.
Key Takeaways
- Direct fit for front right door on 1998-2005 Lexus GS300/GS400/GS430 and 2001-2003 Toyota Prius
- Replaces OE numbers 69110-30010, 6911030010, and 8973499930
- Fixes passenger door that won't lock/unlock remotely or from switches
- Brand-new unit engineered to OE specifications for reliable operation
- DIY-friendly replacement—no programming or coding required
Buy APDTY 133931 directly from APDTY
What Does the Door Lock Actuator Motor Do?
The door lock actuator motor is an electromechanical device inside each door panel that physically moves the lock mechanism when you press your key fob, use the interior door-lock switch, or engage the central locking system. When you command "lock," the actuator motor rotates a set of gears and linkages that slide the lock rod into the locked position; "unlock" reverses the motion.
Each door has its own actuator. The APDTY 133931 serves the front right (passenger-side) door on the specific Lexus GS-series and Toyota Prius models listed. Over time, internal gears wear, the motor windings fail, or corrosion seizes the mechanism—resulting in a door that no longer responds to electronic lock commands.
What Are the Symptoms of a Failing Front Right Door Lock Actuator?
- Passenger door won't lock or unlock from the key fob, while other doors work normally
- Intermittent operation: door locks or unlocks only sometimes, or requires multiple button presses
- Clicking, grinding, or buzzing noise from inside the passenger door panel when you attempt to lock/unlock
- Manual lock still works: you can lock/unlock the door with the interior lock knob or key, but power locking has failed
- Dashboard warning or security-system fault: some vehicles log a door-ajar or lock-system error when an actuator is unresponsive
Because only one door is affected, the root cause is almost always the actuator motor itself—not the body control module, fuse, or wiring (unless physical damage is present).
Which Vehicles Does the APDTY 133931 Fit?
According to verified product data, the APDTY 133931 door lock actuator motor is compatible with the following vehicles for the front right (passenger-side) door:
| Make | Model | Years |
|---|---|---|
| Lexus | GS300 | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
| Lexus | GS400 | 1998, 1999, 2000 |
| Lexus | GS430 | 2001, 2002, 2003, 2004, 2005 |
| Toyota | Prius | 2001, 2002, 2003 |
Fitment is for the front right door position only. Always verify compatibility with your specific vehicle using the live compatibility chart on the APDTY product page before ordering, as sub-models, build dates, or regional variants may differ.
Specifications and OE Cross-Reference
| APDTY Part Number | 133931 |
| Position | Front Right (Passenger-Side) |
| Condition | Brand New |
| Replaces OE Numbers | 69110-30010, 6911030010, 8973499930 |
| Type | Electric door lock actuator motor |
This unit is engineered to match OE form, fit, and function. No programming, adaptation, or coding is required after installation—once connected, the body control module will recognize and operate the actuator immediately.
How Do You Replace a Front Right Door Lock Actuator?
Replacing a door lock actuator is a straightforward mechanical job, but care and patience are essential to avoid breaking plastic clips or damaging window regulators. General installation steps:
- Disconnect the battery (negative terminal) to eliminate any risk of short-circuits or accidental airbag deployment while working near door wiring.
- Remove the door panel: Unscrew any visible fasteners (often hidden under caps or in the door pull), disconnect power-window and lock-switch connectors, and carefully pry the panel away from the door frame using trim tools.
- Peel back the moisture barrier (plastic sheet) to access the inner door cavity.
- Locate the actuator: It is typically bolted or clipped to the door latch assembly, with a wiring connector and mechanical linkage rods attached.
- Disconnect the electrical connector and detach any lock-rod clips.
- Remove mounting fasteners (usually two or three bolts or screws) and extract the old actuator.
- Install the new APDTY 133931: Align it to the latch, secure the bolts, reconnect the linkage rods and electrical connector.
- Test operation before reassembling: reconnect the battery, cycle the locks from the fob and interior switch to confirm smooth, quiet operation.
- Reinstall the moisture barrier and door panel, ensuring all clips seat properly.
Safety note: Some doors contain side-impact airbag modules or wiring. Consult your vehicle's service manual for airbag-disarm procedures if your door panel houses an airbag. Always disconnect the battery and wait at least two minutes before beginning work to allow airbag capacitors to discharge.
Why Choose the APDTY 133931 Over OE or Aftermarket Alternatives?
Dealer OE actuators for Lexus and Toyota can cost two to three times as much as quality aftermarket units, with no measurable difference in lifespan or performance. The APDTY 133931 offers:
- OE-equivalent construction: engineered to the same specifications as the factory part
- Plug-and-play installation: connectors, mounting points, and linkage geometry match the original exactly
- No programming required: the body control module recognizes the actuator instantly
- Comprehensive coverage: replaces multiple OE part numbers across Lexus GS and Toyota Prius platforms
For DIYers and independent repair shops, APDTY delivers OE fit and reliability at a fraction of dealer cost—backed by in-stock availability and fast shipping.
Frequently asked questions
Does the APDTY 133931 require programming after installation?
No. This is a direct electrical and mechanical replacement. Once connected, the body control module will operate the actuator immediately—no scan tool or adaptation procedure is needed.
Can I use this actuator for the driver-side door?
No. The APDTY 133931 is designed exclusively for the front right (passenger-side) door. Driver-side, rear left, and rear right doors require different part numbers with unique connector pinouts and mounting configurations.
Will this fix a door that won't lock manually either?
If the manual lock (turning the key or flipping the interior knob) also fails, the issue may be a broken door latch assembly or disconnected linkage rod—not the actuator motor. The actuator only powers electronic locking; manual locking is purely mechanical.
How long does it take to replace a door lock actuator?
Most DIYers complete the job in 45–90 minutes per door, depending on familiarity with door-panel removal. Professional techs typically budget 0.8–1.2 hours per door.
A non-responsive passenger door lock is more than an inconvenience—it compromises vehicle security and can trigger false alarms or drain the battery if the system continuously attempts to lock. The APDTY 133931 Door Lock Actuator Motor is the direct-fit, cost-effective solution for 1998–2005 Lexus GS300, GS400, and GS430, plus 2001–2003 Toyota Prius models. With OE-grade construction, straightforward installation, and no programming required, this actuator restores full electronic locking function and eliminates annoying clicks and grinding noises. Order the APDTY 133931 today and reclaim one-button convenience for your front right door.