AutoCodes – Chevrolet – P1515 Chevrolet

P1515 Chevrolet Code - Control Module Throttle Actuator Position Performance

Quick Answer

The Throttle Actuator Control (TAC) system uses vehicle electronics and components to calculate and control the position of the throttle blade. Common causes include Poor connection at the Throttle Actuator Control (TAC) module, Faulty TAC module, Faulty Throttle Pedal Position (TPP) or Throttle Position (TPS) sensors. 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 Chevrolet indicates Control Module Throttle Actuator Position Performance.
Common causes
Common causes include Poor connection at the Throttle Actuator Control (TAC) module, Faulty TAC module, Faulty Throttle Pedal Position (TPP) or Throttle Position (TPS) sensors.
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.
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Code Popularity 55,266
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Aug 26, 2019
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Code P1515 Chevrolet Description

The Throttle Actuator Control (TAC) system uses vehicle electronics and components to calculate and control the position of the throttle blade. This eliminates the need for a mechanical cable attachment from the accelerator pedal to the throttle body. This system also performs the cruise control functions as well.
The TAC system components include, but are not limited to the following:
- The accelerator pedal position (APP) sensors
- The throttle body
- The Powertrain Control Module (PCM)
Each of these components interface together to ensure accurate calculations and control of the throttle position (TP).
<b>Throttle Body Assembly</b>
The throttle body for the throttle actuator control (TAC) system is similar to a conventional throttle body with several exceptions. One exception being the use of a motor to control the throttle position instead of a mechanical cable. Another exception is the throttle position (TP) sensor. The TP sensor is mounted in the throttle body assembly. The TP sensor is 2 individual TP sensors within the throttle body assembly. Two separate signal, low reference, and 5-volt reference circuits are used to connect the TP sensors and the Powertrain Control Module (PCM). TP sensor 2 signal voltage increases as the throttle opens. TP sensor 1 signal voltage decreases as the throttle opens.
OBDII Code P1515 Chevrolet - Control Module Throttle Actuator Position Performance - AutoCodes.com
P1515 Chevrolet Code - Control Module Throttle Actuator Position Performance

What are the Possible Causes of the DTC P1515 Chevrolet?

  • Poor connection at the Throttle Actuator Control (TAC) module
  • Faulty TAC module
  • Faulty Throttle Pedal Position (TPP) or Throttle Position (TPS) sensors
  • Binding or bent throttle plate-failed throttle body

How to Fix the DTC P1515 Chevrolet?

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1515 Chevrolet 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.

Need more information about the P1515 Chevrolet code?

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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.

Frequently Asked Questions about P1515 Chevrolet Code

1. What are the common symptoms of OBDII code P1515 in a Chevrolet related to the Control Module Throttle Actuator Position Performance?

- Common symptoms include poor engine performance, reduced power, stalling, and the illumination of the Check Engine Light.

2. What are the typical causes of OBDII code P1515 in a Chevrolet?

- The code P1515 in a Chevrolet is typically caused by issues with the throttle actuator control module, throttle body, wiring harness, or electronic components.

3. How can I diagnose the OBDII code P1515 in my Chevrolet?

- Diagnosis usually involves using a scan tool to retrieve the trouble codes, checking the throttle actuator for proper operation, inspecting the wiring for any damage, and testing the control module for faults.

4. Is it safe to continue driving with OBDII code P1515 in my Chevrolet?

- It is not recommended to drive with code P1515 present, as it can lead to further engine damage or unsafe driving conditions due to reduced power or stalling.

5. What are some DIY repair tips for fixing OBDII code P1515 in a Chevrolet?

- DIY repair tips include checking and cleaning the throttle body, inspecting the wiring harness for damage, and ensuring all connections are secure.

6. Can a faulty throttle position sensor trigger OBDII code P1515 in a Chevrolet?

- Yes, a faulty throttle position sensor can contribute to triggering code P1515 by providing incorrect data to the control module.

7. How much does it typically cost to repair OBDII code P1515 in a Chevrolet?

- Repair costs for code P1515 can vary depending on the specific cause, but it may range from $200 to $600, including parts and labor.

8. Can resetting the ECU clear OBDII code P1515 in a Chevrolet?

- Resetting the ECU may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return once the problem reoccurs.

9. Will driving in extreme weather conditions affect OBDII code P1515 in a Chevrolet?

- Extreme weather conditions can potentially exacerbate issues related to code P1515, especially if they affect electronic components or wiring.

10. Is it necessary to visit a dealership for repairs related to OBDII code P1515 in a Chevrolet?

- While visiting a dealership is an option, independent mechanics with expertise in diagnosing and repairing engine issues can also effectively resolve code P1515 in a Chevrolet.

Discuss the causes and fixes for P1515 Chevrolet OBDII Code

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