P2106 - Throttle Actuator Control System - Forced Limited Power

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3   
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Possible causes

  • Faulty Throttle Actuator Control (TAC)
  • Throttle Actuator Control (TAC) harness is open or shorted
  • Throttle Actuator Control (TAC) circuit poor electrical connection

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P2106 Description

The Throttle Actuator Control (TAC) system uses vehicle electronics and components to calculate and control the position of the throttle blade. This eliminates the need for a mechanical cable attachment from the accelerator pedal to the throttle body. This system also performs the cruise control functions as well.

The TAC system components include, but are not limited to the following:

- The accelerator pedal position (APP) sensors

- The throttle body

- The powertrain control module (PCM)

Each of these components interface together to ensure accurate calculations and control of the throttle position (TP).

Throttle Body Assembly

The throttle body for the throttle actuator control (TAC) system is similar to a conventional throttle body with several exceptions. One exception being the use of a motor to control the throttle position instead of a mechanical cable. Another exception is the throttle position (TP) sensor. The TP sensor is mounted in the throttle body assembly. The TP sensor is 2 individual TP sensors within the throttle body assembly. Two separate signal, low reference, and 5-volt reference circuits are used to connect the TP sensors and the powertrain control module (PCM). TP sensor 2 signal voltage increases as the throttle opens. TP sensor 1 signal voltage decreases as the throttle opens.

OBDII Code P2106 - Throttle Actuator Control System - Forced Limited Power - AutoCodes.com

P2106 Information for specific makes

  • P2106 BUICK Throttle Control System Performance - Throttle Limitations Active
  • P2106 CADILLAC Throttle Control System Performance - Throttle Limitations Active
  • P2106 CHEVROLET Throttle Control System Performance - Throttle Limitations Active
  • P2106 DODGE Throttle Actuator Control System - Forced Limited Power
  • P2106 FORD Throttle Actuator Control System - Forced Limited Power   
  • P2106 GMC Throttle Control System Performance - Throttle Limitations Active
  • P2106 HYUNDAI Electronic Throttle Control System Forced Limited Power   
  • P2106 LINCOLN Throttle Actuator Control System - Forced Limited Power
  • P2106 MERCURY Throttle Actuator Control System - Forced Limited Power
  • P2106 SATURN Throttle Control System Performance - Throttle Limitations Active

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Related Information

P2106 Comments

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