If you’re experiencing an illuminated Engine Light or Service Engine Soon Warning Light, it could be due to the P2105 fault code.

This code indicates a problem with the Throttle Actuator Control (TAC), which could be caused by a faulty TAC or a poor electrical connection in the TAC circuit. It’s important to visually inspect the wiring harness and connectors for any damage or corrosion. The repair time for this issue is estimated at 1.0, and it’s crucial to address the problem promptly to avoid further damage to your vehicle.

To interpret the fault code, you can use an OBD-II scanner or take your car to a mechanic for diagnosis.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level6.67 (Out of 10)

If you notice the Engine Light ON or Service Engine Soon Warning Light, it could be a sign of p2105 fault code.

Here are the symptoms to look out for:

  • The P2105 fault code in an automobile can cause several symptoms.
  • These include the engine light turning on or the service engine soon warning light appearing.
  • The vehicle may also experience reduced power or acceleration, and the throttle may not respond properly.
  • The engine may idle roughly or stall, and the vehicle may have difficulty starting.
  • Additionally, the cruise control may not work, and the vehicle may emit black smoke from the exhaust.

The automobile fault code p2105 can be caused by a faulty throttle actuator control, open or shorted TAC harness, or poor electrical connection.

  • The automobile fault code P2105 can be caused by a faulty Throttle Actuator Control (TAC).
  • It can also be caused by an open or shorted Throttle Actuator Control (TAC) harness.
  • Additionally, a poor electrical connection in the Throttle Actuator Control (TAC) circuit can also trigger this fault code.

To fix the p2105 automobile fault code, check the possible causes and inspect the related wiring harness and connectors for any damage or corrosion.

  • To fix the automobile fault code p2105, first, check the possible causes listed above.
  • Then, visually inspect the related wiring harness and connectors.
  • Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The automobile fault code P2105 can be diagnosed and fixed within an estimated repair time of 1.0 hour. The cost of repair is influenced by the hourly rate charged by the auto repair shop, which typically ranges between $75 and $150 per hour.

Therefore, the total cost of fixing the P2105 fault code will depend on the hourly rate charged by the auto repair shop and the estimated repair time required to fix the issue.

The P2105 code is related to the Throttle Actuator Control (TAC) system.

This system calculates and controls the position of the throttle blade using vehicle electronics and components. The TAC system eliminates the need for a mechanical cable attachment from the accelerator pedal to the throttle body.

The TAC system components include the accelerator pedal position (APP) sensors, the throttle body, and the Powertrain Control Module (PCM).

These components interface together to ensure accurate calculations and control of the throttle position (TP). The P2105 code indicates a problem with the TAC system that has forced the engine to shut down. The throttle body assembly for the TAC system is similar to a conventional throttle body, but it uses a motor to control the throttle position instead of a mechanical cable.

The TP sensor is mounted in the throttle body assembly and is made up of two individual TP sensors.

What are the possible causes of the P2105 fault code?

If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to the P2105 fault code. This code is usually caused by a faulty Throttle Actuator Control (TAC), an open or shorted TAC harness, or a poor electrical connection in the TAC circuit. To fix this issue, you should visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

How can I visually inspect the related wiring harness and connectors to fix the P2105 fault code?

If you’re experiencing an Engine Light ON or Service Engine Soon Warning Light due to a P2105 fault code, it could be caused by a faulty Throttle Actuator Control (TAC), an open or shorted TAC harness, or a poor electrical connection in the TAC circuit. To fix this issue, you should visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.

What are the signs that the Throttle Actuator Control (TAC) circuit has a poor electrical connection causing the P2105 fault code?

If the Throttle Actuator Control (TAC) circuit has a poor electrical connection causing the P2105 fault code, the engine light will turn on or the service engine soon warning light will appear. This issue can be caused by a faulty TAC, an open or shorted TAC harness, or a poor electrical connection in the TAC circuit. To fix this problem, it is recommended to visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

p2105 error fault code explained

If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to a faulty Throttle Actuator Control (TAC), open or shorted TAC harness, or poor electrical connection.

Visually inspect the wiring harness and connectors for damage, broken, bent, pushed out, or corroded pins.

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