Engine-CodesGMC – P1515 GMC

P1515 GMC Code - Control Module Throttle Actuator Position Performance

Quick Answer

The P1515 code in a GMC vehicle indicates a problem with the Control Module Throttle Actuator Position Performance. Common causes include Malfunctioning throttle actuator, Faulty throttle position sensor, Wiring issues. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1515 GMC indicates Control Module Throttle Actuator Position Performance.
Common causes
Common causes include Malfunctioning throttle actuator, Faulty throttle position sensor, Wiring issues.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1515 GMC Description

The P1515 code in a GMC vehicle indicates a problem with the Control Module Throttle Actuator Position Performance. This means that the Engine Control Module (ECM) has detected that the actual position of the throttle actuator does not match the desired position. The throttle actuator is responsible for controlling the airflow into the engine, which is crucial for proper engine performance and fuel efficiency.

OBDII Code P1515 GMC - Control Module Throttle Actuator Position Performance
P1515 GMC Code - Control Module Throttle Actuator Position Performance

Common Causes of P1515 GMC

  1. Malfunctioning throttle actuator
  2. Faulty throttle position sensor
  3. Wiring issues
  4. Problem with the ECM
  5. Vacuum leaks

Symptoms of P1515 GMC

  1. Reduced engine power
  2. Hesitation or stalling when accelerating
  3. Rough idling
  4. Poor fuel economy
  5. Difficulty starting or maintaining a consistent speed

How to Fix P1515 GMC

  1. Diagnose the issue using a scan tool to retrieve the trouble codes and perform a visual inspection of the throttle actuator and related components.
  2. Test the throttle position sensor to ensure it is functioning correctly.
  3. Inspect the wiring harness for any damage or loose connections and repair as needed.
  4. If necessary, replace the throttle actuator or ECM with new components.
  5. Clear the trouble codes and perform a test drive to verify that the issue has been resolved.

Cost to Fix P1515 GMC

The cost of repairing the P1515 code in a GMC vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair can range from $200 to $500, while labor costs can add an additional $100 to $300. Overall, the total cost of addressing this issue typically falls between $300 and $800. It is important to keep in mind that labor rates and part prices can vary significantly based on location, vehicle make and model, and the specific repair shop chosen. It is advisable to obtain quotes from multiple sources to ensure a fair price for the repair.

When is the Code Detected?

The Powertrain Control Module (PCM) has detected a throttle plate out of position based on commanded and actual throttle plate position

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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