P0507 2015 GMC Sierra Code - Idle Speed High
Quick Answer
The Engine Control Module (ECM) is the control center for the Throttle Actuator Control (TAC) system. Common causes include Dirty Throttle Body, Intake air leak, Throttle Body misadjusted or damaged. 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
- P0507 2015 GMC Sierra indicates Idle Speed High.
- Common causes
- Common causes include Dirty Throttle Body, Intake air leak, Throttle Body misadjusted or damaged.
- 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.
Code P0507 2015 GMC Sierra Description
What are the Possible Causes of the DTC P0507 2015 GMC Sierra?
- Dirty Throttle Body
- Intake air leak
- Throttle Body misadjusted or damaged
- Faulty Electric Throttle Actuator Motor (Located in the Throttle Body Assembly)
- Electric Throttle Actuator Motor harness is open or shorted
- Electric Throttle Actuator Motor circuit poor electrical connection
How to Fix the DTC P0507 2015 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
The Engine Control Module (ECM) learns the idle position of the throttle plate to ensure the correct idle. Anytime the throttle body is cleaned or replaced, the ECM must learn the new throttle position. The idle may be unstable or a DTC may be set if the throttle position is not learned.
Chevrolet Throttle Body Cleaning and Idle Learning Procedure
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0507 2015 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0507 2015 GMC Sierra Code
1. What does the OBDII code P0507 mean on a 2015 GMC Sierra?
P0507 indicates that the idle control system is running at a higher RPM than the manufacturer’s specified range.
2. What are the common symptoms of code P0507 in a 2015 GMC Sierra?
Symptoms may include a high or fluctuating idle speed, poor fuel economy, difficulty slowing down, and possible illumination of the check engine light.
3. What causes the P0507 code to appear on a 2015 GMC Sierra?
Common causes include a dirty or faulty throttle body, vacuum leaks, a malfunctioning idle air control (IAC) valve, or issues with the PCV system.
4. Can vacuum leaks trigger code P0507 on a 2015 GMC Sierra?
Yes, vacuum leaks can cause the engine to draw in unmetered air, leading to a higher-than-expected idle speed and triggering the P0507 code.
5. How can I fix the P0507 code on my 2015 GMC Sierra?
Fixes may involve cleaning the throttle body, inspecting and repairing vacuum leaks, replacing the IAC valve if faulty, or reprogramming/resetting the engine control module (ECM).
6. Is it safe to drive a 2015 GMC Sierra with the P0507 code?
While the vehicle may still be drivable, a high idle speed can cause increased wear on engine components and reduced fuel efficiency. It’s best to address the issue promptly.
7. How do I clean the throttle body to resolve the P0507 code?
Disconnect the intake hose, spray throttle body cleaner on the throttle plate and housing, and gently scrub with a soft brush or cloth. Be cautious not to damage sensitive components.
8. Could a faulty PCV valve cause the P0507 code on a 2015 GMC Sierra?
Yes, a malfunctioning PCV valve can create a vacuum leak or disrupt crankcase ventilation, leading to higher idle speeds and triggering the code.
9. Do I need to reset the ECM after fixing the P0507 code?
It’s recommended to clear the code and reset the ECM using an OBDII scanner after repairs to ensure the system recalibrates properly.
10. Can a dirty mass airflow (MAF) sensor cause the P0507 code on a 2015 GMC Sierra?
Yes, a dirty or faulty MAF sensor can send incorrect air intake data to the ECM, potentially affecting idle speed and triggering the P0507 code.
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