Need a
Repair Manual?
P2103 OBD2: Throttle Actuator "A" Control Motor Circuit High

P2103 OBD2: Throttle Actuator “A” Control Motor Circuit High

OBD-II Code P2103 is defined as a Throttle Actuator “A” Control Motor Circuit High. This code indicates that the engine’s throttle control motor is not functioning correctly, which can significantly impact engine performance.

What Does the P2103 Code Mean?

The P2103 code signals an issue with the throttle actuator’s control motor circuit being too high. Essentially, the engine computer (PCM) is not receiving the expected signal from the throttle motor, which could lead to limited engine power and performance.

What Causes the P2103 Code?

Several factors can trigger the P2103 code:

  • Powertrain Control Module (PCM) failure
  • Throttle control motor failure
  • Wiring issues within the throttle control circuit

What Are the Symptoms of the P2103 Code?

When your vehicle encounters the P2103 code, you may experience the following symptoms:

  • Decreased engine performance
  • Engine may enter limp home mode, resulting in reduced power

How Serious Is the P2103 Code?

The P2103 code is classified as urgent. It indicates a significant malfunction that can lead to severe damage to your vehicle or pose risks to driver and passenger safety. Immediate attention is necessary to avoid further complications.

How to Diagnose the P2103 Code

To diagnose the P2103 code, follow these steps:

  1. Use an OBD-II scanner to confirm the presence of the P2103 code.
  2. Inspect the throttle control motor and related wiring for any visible damage or corrosion.
  3. Test the throttle control motor operation using a multimeter.
  4. Check the PCM for any signs of malfunction or failure.
  5. Consider testing other components in the throttle control system.

Common Repairs for the P2103 Code

Repairs for the P2103 code may include:

  • Replacing the throttle control motor
  • Repairing or replacing damaged wiring or connectors
  • Reprogramming or replacing the PCM if necessary

How Much Does It Cost to Fix the P2103 Code?

The cost to repair the P2103 code can vary significantly based on the cause of the issue. Basic repairs, like fixing wiring, may cost between $100 to $300, while replacing the throttle control motor or PCM can range from $300 to over $1,000, depending on your vehicle’s make and model.

Can I Fix the P2103 Code Myself?

While some DIY enthusiasts may tackle repairs related to the P2103 code, it’s crucial to understand the complexity of the throttle control system. If you have experience with automotive diagnostics and repairs, you may be able to address simpler issues like wiring. However, for complex problems involving the PCM or throttle motor, seeking professional assistance is recommended to ensure proper resolution.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

Leave a Reply

Your email address will not be published. Required fields are marked *

;