AutoCodes – Chevrolet – P16A0 2014 Chevrolet Silverado

P16A0 2014 Chevrolet Silverado Code - Throttle Position Sensor Communication Circuit Low 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: P16A0 2014 Chevrolet Silverado indicates Throttle Position Sensor Communication Circuit Low 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 580

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 P16A0 2014 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 low voltage circuit condition on the throttle position sensor signal circuit for greater than 1 s.

OBDII Code P16A0 2014 Chevrolet Silverado - Throttle Position Sensor Communication Circuit Low Voltage - AutoCodes.com — P16A0 2014 Chevrolet Silverado Code - Throttle Position Sensor Communication Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P16A0 2014 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 P16A0 2014 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 P16A0 2014 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 P16A0 2014 Chevrolet Silverado code?

Need more information on how to fix the P16A0 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 P16A0 2014 Chevrolet Silverado Code

What does the OBDII code P16A0 mean on a 2014 Chevrolet Silverado?

The P16A0 code indicates a "Throttle Position Sensor Communication Circuit Low Voltage," meaning the ECM is detecting a low voltage signal from the throttle position sensor (TPS) communication circuit.

What are the common symptoms of the P16A0 code?

Symptoms may include reduced engine performance, poor throttle response, the check engine light turning on, and potentially the vehicle entering "limp mode."

What causes the P16A0 code on a 2014 Chevrolet Silverado?

Common causes include a faulty throttle position sensor, damaged wiring or connectors in the TPS circuit, a malfunctioning electronic control module (ECM), or issues with the throttle body assembly.

Can I drive with the P16A0 code active?

Itâ€™s not recommended to drive for long periods with this code, as it can result in reduced performance, safety risks, or further damage to the throttle system.

How do I diagnose the P16A0 code?

Start by using an OBDII scanner to confirm the code, then inspect the TPS wiring, connectors, and sensor for visible damage. Test the circuit voltage and continuity if needed.

How is the P16A0 code fixed?

Repairs may involve replacing the throttle position sensor, repairing damaged wiring or connectors, cleaning or replacing the throttle body, or reprogramming the ECM if necessary.

What tools are needed to troubleshoot the P16A0 code?

Youâ€™ll need a multimeter to test voltage and continuity, an OBDII scanner to confirm the code, and possibly basic tools to access and inspect the throttle body and wiring.

How much does it cost to repair the P16A0 code?

Repair costs depend on the issue, ranging from $50 to $200 for a throttle position sensor replacement, up to $600+ if a new throttle body or ECM is needed.

Can a dirty throttle body cause the P16A0 code?

Yes, a dirty or malfunctioning throttle body can disrupt the TPS communication and trigger the code. Cleaning the throttle body may resolve the issue.

Will clearing the code fix the P16A0 issue?

Clearing the code with an OBDII scanner may temporarily turn off the check engine light, but the underlying issue must be addressed to prevent the code from returning.