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P2118 OBD2: Throttle Actuator Control Motor Current Range/Performance

P2118 OBD2: Throttle Actuator Control Motor Current Range/Performance

What Does the P2118 Code Mean?

The P2118 code indicates a problem with the electronic throttle control system (ETCS), specifically concerning the throttle actuator control motor’s current range and performance. When the vehicle’s engine control module (PCM) detects an inconsistency in the throttle actuator’s performance, it triggers this code.

What Causes the P2118 Code?

Several issues can lead to the P2118 code being set, including:

  • Failure of the Powertrain Control Module (PCM)
  • Throttle control motor malfunction
  • Wiring issues within the throttle control system

What Are the Symptoms of the P2118 Code?

Drivers may notice various symptoms when the P2118 code is present, such as:

  • Decreased engine performance
  • Engine may enter limp home mode, limiting acceleration and power

How Serious Is the P2118 Code?

The P2118 code is considered urgent, indicating that immediate action is necessary. Ignoring this code can result in severe damage to the vehicle or compromise the safety of the driver and passengers, as it may lead to unexpected acceleration issues.

How to Diagnose the P2118 Code

Proper diagnosis of the P2118 code involves a few steps:

  1. Use an OBD-II scanner to confirm the presence of the P2118 code.
  2. Check for any related codes that may provide additional context.
  3. Inspect the throttle control motor, wiring, and connections for any visible damage.
  4. Perform a functional test of the throttle actuator to ensure it is operating correctly.

Common Repairs for the P2118 Code

Repairs for the P2118 code can vary based on the underlying cause. Common fixes include:

  • Replacing a faulty 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 P2118 Code?

The cost to fix the P2118 code can range significantly based on the specific repairs needed. Generally, you can expect to pay anywhere from $100 to $1,000, depending on whether you need to replace parts like the throttle control motor or the PCM.

Can I Fix the P2118 Code Myself?

While some DIY enthusiasts may be capable of diagnosing and addressing issues related to the P2118 code, it is important to understand that improper repairs can lead to further complications. If you are not experienced with automotive electrical systems, it is advisable to consult a professional mechanic to avoid unnecessary costs and safety risks.

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.

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