Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. P2106 OBD-II Trouble Code: Throttle Actuator Control System Forced Limited Power

P2106 OBD-II Trouble Code: Throttle Actuator Control System Forced Limited Power

check engine light logo

P2106 trouble code definition

Throttle Actuator Control System Forced Limited Power

What the P2106 code means

P2106 is an OBD-II generic code for the engine control module (ECM) detecting a major failure in a system causing the ECM to go into failure mode and limiting the throttle actuator to limited power.

What causes the P2106 code?

  • The engine control module (ECM) is in failure management mode.
  • The throttle actuator control (TAC) system is limited on power and code P2106 is set.
  • Problem may be in any system that can cause the ECM to go into failure management mode.

What are the symptoms of the P2106 code?

  • The Check Engine Light will be illuminated and the code is set in ECM memory as a fault along with the failure that caused the ECU to go into failure mode.

  • The engine will have limited acceleration and slow throttle response.

  • Symptoms will depend on the issue that caused the failure mode.

How does a mechanic diagnose the P2106 code?

  • Scans codes and documents the code in the ECM

  • Diagnoses all codes as per the manufacturer's pinpoint tests

  • Diagnoses and repairs codes other than P2106 first

Common mistakes when diagnosing the P2106 code

  • Clearing the ECM memory codes before checking the freeze frame data of the main failure so the failure may be duplicated and repaired

  • Failing to clear ECM codes after the codes are fixed

  • Diagnosing code P2106 before diagnosing other codes first

How serious is the P2106 code?

Code P2106 is an indication that the ECM is in failure management mode and has limited power to the throttle control actuator system. The problem may be in another system causing the problem.

What repairs can fix the P2106 code?

Diagnosing and repairing other codes received first before addressing code P2106

Additional comments for consideration regarding the P2106 code

Code P2106 can be generated without an error to the throttle actuator. The code is set due to another system has failed and caused the ECM to go into failure mode. All other codes should be checked and repaired first.

Need help with a P2106 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Insurance Requirements for Car Registration in Kentucky
The Kentucky Transportation Cabinet requires that all drivers in Kentucky carry liability automotive insurance, or “financial responsibility” in order to operate a vehicle legally and maintain vehicle...
How to Transfer a Car Title in Idaho
In order to prove ownership of a car, you must have the title. However, when a car is sold, given away or inherited, the title needs...


Related questions

Q: Codes P2106 and P0720

Hi, thanks for writing in. Code P0720 is for the output speed sensor for the transmission, and code P2016 is for the throttle control actuator in failure mode and may be due to the transmission codes. The system will need...

Q: My car is a Nissan Navara. My Check Engine Light is on and my acceleration is not well.

Hi there. It seems that the engine you have is a diesel engine. The code P2002 is coming up for the particulate filter and it has an efficiency issue. The only thing to do with this is replace the particulate...

Q: P0420 code after idle relearn

Hi and thanks for contacting Your Mechanic. The P0420 code usually means that the catalytic converter has failed, however, it also relates to a mixture of fuel and air that is causing the catalytic converter to heat up too much....