Engine-Codes - Generic - P2100

P2100 Code - Throttle Actuator 'A' Control Motor Circuit Open

- Code Popularity: 57,089 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the Code P2100?

  • Dirty throttle body
  • Faulty Throttle Actuator Control Motor
  • Throttle Actuator Control Motor harness is open
  • Throttle Actuator Control Motor circuit poor electrical connection
  • Faulty Throttle Actuator Control Motor Relay
  • Faulty Engine Control Module (ECM)

|How to Fix the P2100 Code?

Start by checking the "Possible Causes" listed above. 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 is the Cost to Diagnose the Code P2100?

Labor: 1.0

The cost to diagnose the P2100 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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|What are Code P2100 Possible Symptoms?

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

|What Does the P2100 Code Mean?

The throttle actuator is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. Power supply for the throttle control motor is provided to the ECM via the throttle control motor relay. The throttle control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not provided to the ECM. The opening angle of the throttle valve is detected by the throttle position sensor which is mounted on the throttle body. The throttle position sensor provides feedback to the ECM. This feedback allows the ECM to control the throttle actuator and monitor the throttle opening angle in response to driver inputs.
P2100 Code - Throttle Actuator 'A' Control Motor Circuit Open

|Need more Information on the P2100 Code?

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|Code P2100 Information for Specific Makes

|Need Help with the P2100 Code?

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