AutoCodes – Chevrolet – P1516 2015 Chevrolet Silverado

P1516 2015 Chevrolet Silverado Code - Throttle Actuator Control Module Throttle Actuator Position Performance

Quick Answer

The Engine Control Module (ECM) determines the driver's intent based on input from the accelerator pedal position sensors, then calculates the appropriate throttle response based on the throttle position sensors. Common causes include Binding or bent Throttle Plate, Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted. 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
P1516 2015 Chevrolet Silverado indicates Throttle Actuator Control Module Throttle Actuator Position Performance.
Common causes
Common causes include Binding or bent Throttle Plate, Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 656
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 13, 2022
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Code P1516 2015 Chevrolet Silverado Description

The Engine Control Module (ECM) determines the driver's intent based on input from the accelerator pedal position sensors, then calculates the appropriate throttle response based on the throttle position sensors. The ECM controls the throttle valve by applying a varying voltage to the control circuits of the Throttle Actuator Control (TAC) motor. The ECM monitors the duty cycle that is required to actuate the throttle valve. The ECM monitors the TP sensor signal/serial data circuit to determine the actual throttle valve position. The TP sensor information is transmitted between the throttle body and the ECM on the signal/serial data circuit. The Diagnostic Trouble Code (DTC) will be set when the ECM detects an unstable throttle position for greater than 1 s.
OBDII Code P1516 2015 Chevrolet Silverado - Throttle Actuator Control Module Throttle Actuator Position Performance - AutoCodes.com
P1516 2015 Chevrolet Silverado Code - Throttle Actuator Control Module Throttle Actuator Position Performance

What are the Possible Causes of the DTC P1516 2015 Chevrolet Silverado?

  • Binding or bent Throttle Plate
  • Faulty Throttle Body Assembly
  • Throttle Body Assembly harness is open or shorted
  • Throttle Body Assembly circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P1516 2015 Chevrolet Silverado?

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 P1516 2015 Chevrolet Silverado 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 P1516 2015 Chevrolet Silverado 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 P1516 2015 Chevrolet Silverado Code

1. What does OBDII code P1516 mean on a 2015 Chevrolet Silverado?

P1516 indicates a problem with the Throttle Actuator Control (TAC) module, specifically a discrepancy in the throttle actuator position performance.

2. What are the common symptoms of code P1516 in a 2015 Silverado?

Symptoms may include reduced engine power, the "Check Engine" light turning on, rough idling, or the vehicle entering "limp mode."

3. What causes the P1516 code on a 2015 Chevrolet Silverado?

Common causes include a faulty throttle body assembly, a malfunctioning throttle actuator control module, damaged wiring or connectors, or carbon buildup in the throttle body.

4. Can I drive my 2015 Silverado with the P1516 code?

While the vehicle may still run, driving with this code is not recommended as the reduced power mode can limit performance and potentially worsen the issue.

5. How do I diagnose the P1516 code on my 2015 Chevrolet Silverado?

Use an OBDII scanner to confirm the code, inspect the throttle body and wiring for damage, and check for proper voltage and signal from the TAC module.

6. How do you fix the P1516 code on a 2015 Chevrolet Silverado?

Repairs may include cleaning or replacing the throttle body, repairing damaged wiring or connectors, or replacing the TAC module if faulty.

7. Does the P1516 code always mean I need to replace the throttle actuator control module?

No, it could also be caused by wiring issues, throttle body problems, or carbon buildup, so a thorough diagnosis is essential.

8. How much does it cost to fix the P1516 code on a 2015 Silverado?

The cost depends on the repair needed, ranging from $100 for cleaning the throttle body to $500 or more for replacing the throttle actuator control module.

9. Can a dirty throttle body cause the P1516 code on a 2015 Chevrolet Silverado?

Yes, carbon buildup in the throttle body can interfere with its operation and cause the P1516 code.

10. Will disconnecting the battery clear the P1516 code on my 2015 Chevrolet Silverado?

Disconnecting the battery may temporarily clear the code, but it won't fix the underlying problem, and the code will likely return.

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