AutoCodes – Chevrolet – P16A1 2016 Chevrolet Silverado

P16A1 2016 Chevrolet Silverado Code - Throttle Position Sensor Communication Circuit High Voltage

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 Assembly harness is open or shorted, Throttle Body Assembly 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: P16A1 2016 Chevrolet Silverado indicates Throttle Position Sensor Communication Circuit High Voltage.
Common causes: Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly 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 1,620

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 P16A1 2016 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 a high voltage circuit condition on the throttle position sensor signal circuit for greater than 1 s.

OBDII Code P16A1 2016 Chevrolet Silverado - Throttle Position Sensor Communication Circuit High Voltage - AutoCodes.com — P16A1 2016 Chevrolet Silverado Code - Throttle Position Sensor Communication Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P16A1 2016 Chevrolet Silverado?

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 P16A1 2016 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

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P16A1 2016 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 P16A1 2016 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 P16A1 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P16A1 in a 2016 Chevrolet Silverado?

The common symptoms of code P16A1 include rough idling, poor acceleration, reduced fuel efficiency, and potential stalling of the vehicle.

2. What can cause the Throttle Position Sensor Communication Circuit High Voltage code in a 2016 Chevrolet Silverado?

Possible causes of P16A1 in a 2016 Chevrolet Silverado include a faulty throttle position sensor, damaged wiring or connectors in the communication circuit, or issues with the engine control module (ECM).

3. How can I diagnose the cause of OBDII code P16A1 in my 2016 Chevrolet Silverado?

To diagnose code P16A1, you can start by checking the throttle position sensor's wiring and connectors for any damage or loose connections. You may also use a multimeter to test the sensor's voltage output and continuity.

4. Can I drive my 2016 Chevrolet Silverado with OBDII code P16A1?

It is not recommended to drive your Chevrolet Silverado with code P16A1, as the faulty throttle position sensor can lead to unsafe driving conditions and potential damage to other engine components.

5. How can I repair OBDII code P16A1 in my 2016 Chevrolet Silverado?

Repairing code P16A1 may involve replacing the throttle position sensor if it is found to be faulty. Additionally, fixing any damaged wiring or connectors in the communication circuit and resetting the ECM can help resolve the issue.

6. Will resetting the ECM clear OBDII code P16A1 in my 2016 Chevrolet Silverado?

Resetting the ECM may temporarily clear code P16A1, but if the underlying issue, such as a faulty throttle position sensor, is not addressed, the code is likely to reappear.

7. Can a DIY enthusiast fix OBDII code P16A1 in a 2016 Chevrolet Silverado?

While some basic diagnostics and repairs can be done by a DIY enthusiast, diagnosing and fixing complex issues related to code P16A1 may require professional expertise and specialized tools.

8. How much does it cost to repair OBDII code P16A1 in a 2016 Chevrolet Silverado?

The cost of repairing code P16A1 can vary depending on the exact cause of the issue, the parts needed for replacement, and whether you choose to do the repair yourself or take your vehicle to a mechanic. Costs may range from a few hundred to a thousand dollars.

9. Will ignoring OBDII code P16A1 damage my 2016 Chevrolet Silverado?

Ignoring code P16A1 can lead to further damage to your Chevrolet Silverado's engine and other components over time. It is advisable to address the issue promptly to prevent more severe problems.

10. Is it safe to clear OBDII code P16A1 using a diagnostic tool without fixing the underlying problem?

Clearing code P16A1 without addressing the root cause, such as a faulty throttle position sensor, is not recommended. It is crucial to fix the issue causing the code to ensure the safe and efficient operation of your 2016 Chevrolet Silverado.