AutoCodes – Chevrolet – P16A2 2015 Chevrolet Silverado

P16A2 2015 Chevrolet Silverado Code - Throttle Position Sensor Communication Circuit Performance

Quick Answer

The Throttle Body Assembly contains a contact-less inductive throttle position sensing element that is managed by a customized integrated circuit. Common causes include Faulty Throttle Body Assembly, Throttle Body harness is open or shorted, Throttle Body circuit poor electrical connection. 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: P16A2 2015 Chevrolet Silverado indicates Throttle Position Sensor Communication Circuit Performance.
Common causes: Common causes include Faulty Throttle Body Assembly, Throttle Body harness is open or shorted, Throttle Body circuit poor electrical connection.
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 377

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on May 20, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P16A2 2015 Chevrolet Silverado Description

The Throttle Body Assembly contains a contact-less inductive throttle position sensing element that is managed by a customized integrated circuit. The throttle position sensor is mounted within the throttle body assembly and is not serviceable. The Engine Control Module (ECM) supplies the throttle body with a 5 V reference circuit, a low reference circuit. The asynchronous signal means communication is only going from the throttle body to the ECM. The throttle body cannot receive data from the ECM over the signal/serial data circuit. The throttle position sensor provides a signal voltage that changes relative to throttle blade angle. The throttle position sensor information is transmitted between the throttle body and the ECM on the signal/serial data circuit. The ECM decodes the serial data signal and is used as voltages for throttle position sensor 1 and 2. The Diagnostic Trouble Code (DTC) will be set when the ECM detects an incorrect message was received over the throttle position sensor signal circuit for greater than 1 s.

OBDII Code P16A2 2015 Chevrolet Silverado - Throttle Position Sensor Communication Circuit Performance - AutoCodes.com — P16A2 2015 Chevrolet Silverado Code - Throttle Position Sensor Communication Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P16A2 2015 Chevrolet Silverado?

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

How to Fix the DTC P16A2 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 does this mean?

Code Tech Notes

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P16A2 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 P16A2 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 P16A2 2015 Chevrolet Silverado Code

1. What does the OBDII code P16A2 mean on a 2015 Chevrolet Silverado?

P16A2 indicates an issue with the throttle position sensor (TPS) communication circuit performance, meaning the sensor is not communicating properly with the engine control module (ECM).

2. What are common symptoms of the P16A2 code in a 2015 Chevrolet Silverado?

Symptoms may include poor throttle response, reduced engine power, the check engine light being illuminated, and potential hesitation or stalling during acceleration.

3. What causes the P16A2 code to appear in a 2015 Chevrolet Silverado?

Common causes include a faulty throttle position sensor, damaged wiring or connectors in the TPS circuit, a malfunctioning engine control module (ECM), or electrical interference.

4. Can I drive my 2015 Chevrolet Silverado with the P16A2 code?

Driving with the P16A2 code is not recommended as it may cause reduced power or unsafe driving conditions due to the throttle not functioning correctly.

5. How do you diagnose the P16A2 code in a 2015 Chevrolet Silverado?

Diagnosis involves scanning for additional codes, inspecting the TPS and its wiring for damage, testing the TPS signal with a multimeter, and checking the ECM for proper operation.

6. How do you fix the P16A2 code on a 2015 Chevrolet Silverado?

Repairs may include replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, updating or reprogramming the ECM, or addressing any electrical interference.

7. What tools are needed to diagnose and fix the P16A2 code on a 2015 Chevrolet Silverado?

Tools may include an OBDII scanner, a multimeter, and basic hand tools to access and replace components. Advanced diagnostics might require specialized equipment for ECM reprogramming.

8. How much does it cost to repair the P16A2 code on a 2015 Chevrolet Silverado?

Repair costs vary but typically range from $100 to $400, depending on whether the issue involves replacing the TPS, repairing wiring, or reprogramming the ECM.

9. Can a dirty throttle body cause the P16A2 code in a 2015 Chevrolet Silverado?

While not a direct cause, a dirty throttle body can contribute to throttle performance issues. Cleaning it may help but won't resolve a faulty TPS or wiring problem.

10. Will clearing the P16A2 code with a scanner fix the problem?

Clearing the code may temporarily turn off the check engine light, but the underlying issue must be fixed to prevent the code from returning.