P0120 Alert on Your 2024 Lincoln Aviator
Your 2024 Aviator's 400-hp twin-turbo V6 just went quiet — the check engine light is on, and the engine has entered a protective limited-power state. P0120 indicates a throttle position sensor circuit malfunction, meaning the ECU has detected abnormal voltage from the electronic throttle body's integrated TPS. On a premium vehicle under full warranty, this is a straightforward dealer visit — but understanding the code helps you communicate effectively with the service advisor.
Symptoms
- Check engine light and/or wrench indicator
- Severe power loss — limp mode engaged
- Throttle pedal unresponsive or delayed
- Idle instability or stalling
- Driver-assist features may deactivate
Most Likely Causes
1. Throttle Body Factory Defect
On a low-mileage 2024 model, a manufacturing defect in the high-flow electronic throttle body is the primary suspect. The 3.0L twin-turbo V6's throttle body handles substantial airflow and must maintain tight tolerances.
2. PCM Software Update
Ford/Lincoln releases post-production calibrations regularly. A pending PCM update may address throttle adaptation parameters for the 2024 model year.
3. Wiring or Connector Issue
An assembly-line wiring routing error or improperly seated connector can cause intermittent TPS signal faults as the vehicle accumulates thermal cycles.
4. CAN Bus Communication Fault
A communication error between the throttle body, pedal sensors, and ECU on the CAN bus network can produce P0120 without hardware failure.
5. Pedal Sensor Defect
A factory-defective accelerator pedal position sensor produces conflicting signals that trigger a throttle circuit fault code.
Diagnostic Steps
- Lincoln dealer scans with IDS/FDRS for comprehensive diagnostics
- Check for TSBs and pending software updates for 2024 Aviator
- Inspect throttle body connector and wiring routing
- Monitor live TPS and APP data for signal anomalies
- Verify CAN bus communication integrity
Repair Costs
- All repairs under warranty: $0
- Throttle body replacement (out of pocket): $400–$850
- Software update: $0 under warranty
Can I Drive With P0120?
Not safely. Use Lincoln roadside assistance (included with your 2024 purchase) for a tow to the dealer. The Aviator in limp mode should not be driven in traffic.
DIY vs Professional
Dealer only. Your 2024 Aviator is under Lincoln's 4-year/50,000-mile comprehensive warranty and 6-year/70,000-mile powertrain warranty. All repairs covered at zero cost. Do not attempt DIY work on a vehicle under warranty.
Frequently Asked Questions
Will Lincoln cover P0120 under warranty?
Yes. All throttle system components are covered under the comprehensive warranty on your 2024 Aviator.
Will I get a loaner car?
Lincoln dealers typically provide premium loaner vehicles for warranty repairs. Arrange one when scheduling your appointment.
Is P0120 a safety concern?
The throttle system is safety-critical, but limp mode is the ECU protecting you. Get to the dealer promptly — the vehicle is safe in its current limited state.
Does this affect the PHEV version?
The Aviator Grand Touring PHEV uses the same 3.0L twin-turbo V6 engine and throttle body. P0120 applies equally to both the standard and PHEV models.