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Engine-Codes – GMC – P2160 2016 GMC Sierra

P2160 2016 GMC Sierra Code - Vehicle Speed Sensor 2 Circuit Low Voltage

Quick Answer

The P2160 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Vehicle Speed Sensor 2 Circuit Low Voltage. Common causes include Faulty vehicle speed sensor, Damaged wiring or connectors in the speed sensor circuit, ECM malfunction. 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
P2160 2016 GMC Sierra indicates Vehicle Speed Sensor 2 Circuit Low Voltage.
Common causes
Common causes include Faulty vehicle speed sensor, Damaged wiring or connectors in the speed sensor circuit, ECM malfunction.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P2160 2016 GMC Sierra Description

The P2160 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Vehicle Speed Sensor 2 Circuit Low Voltage. This code indicates that the vehicle's onboard computer has detected a lower than expected voltage signal from the second vehicle speed sensor circuit. The vehicle speed sensor is a crucial component that monitors the speed of the vehicle and sends this information to the engine control module (ECM) for various functions such as fuel injection, transmission shifting, and ABS operation.

OBDII Code P2160 2016 GMC Sierra - Vehicle Speed Sensor 2 Circuit Low Voltage
P2160 2016 GMC Sierra Code - Vehicle Speed Sensor 2 Circuit Low Voltage

Common Causes of P2160 2016 GMC Sierra

  1. Faulty vehicle speed sensor
  2. Damaged wiring or connectors in the speed sensor circuit
  3. ECM malfunction
  4. Corrosion or debris affecting the speed sensor signal
  5. Electrical issues in the vehicle's system

Symptoms of P2160 2016 GMC Sierra

  1. Erratic shifting patterns in the transmission
  2. Inaccurate speedometer readings
  3. Poor fuel efficiency
  4. Vehicle going into limp mode
  5. Check engine light illuminated

How to Fix P2160 2016 GMC Sierra

  1. Begin by connecting a diagnostic scanner to the vehicle's onboard computer to retrieve the trouble codes and confirm the P2160 code for the Vehicle Speed Sensor 2 Circuit Low Voltage.
  2. Inspect the vehicle speed sensor and its wiring for any visible damage, corrosion, or loose connections. Replace or repair as necessary.
  3. Test the vehicle speed sensor using a multimeter to check for proper voltage output. Replace the sensor if it fails to meet specifications.
  4. Clear the DTC from the ECM memory using the diagnostic scanner and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, further diagnostics may be needed to identify any underlying issues with the ECM or other related components.

Cost to Fix P2160 2016 GMC Sierra

The typical repair costs for addressing the P2160 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. Parts such as a new vehicle speed sensor can range from $50 to $150, while labor costs at an auto repair shop can add another $100 to $200. Overall, the total repair cost for this issue could range from $150 to $350. It's important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate.

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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 P2160 2016 GMC Sierra Code

1. What does the OBDII code P2160 indicate on a 2016 GMC Sierra?

The P2160 code indicates that the Vehicle Speed Sensor 2 Circuit has registered a low voltage situation, which could affect the transmission's functionality and vehicle speed readings.

2. What are common symptoms of the P2160 code in a 2016 GMC Sierra?

Common symptoms include a malfunction indicator lamp (MIL) illuminated on the dashboard, inaccurate speedometer readings, the transmission having difficulty shifting, or the vehicle entering limp mode.

3. What can cause a P2160 code to appear in a 2016 GMC Sierra?

Possible causes include a faulty vehicle speed sensor, damaged wires or connectors in the sensor circuit, or issues with the vehicle’s transmission control module (TCM).

4. How is the P2160 code diagnosed in a 2016 GMC Sierra?

Diagnosis involves using a scan tool to confirm the code, visually inspecting the sensor and its connections for damage, and measuring the voltage in the sensor circuit with a multimeter to verify the low voltage condition.

5. What repairs can fix the P2160 code in a 2016 GMC Sierra?

Repairs might include replacing the vehicle speed sensor, repairing or replacing damaged wiring or connectors, or in some cases, updating or replacing the transmission control module.

6. Is it safe to drive a 2016 GMC Sierra with the P2160 code?

While the vehicle may be drivable, driving with this code can lead to further complications like impaired transmission function and inaccurate speed readings, which can affect overall driving safety. It is advisable to address the issue as soon as possible.

7. How urgent is it to repair a P2160 code on a 2016 GMC Sierra?

It is fairly urgent to repair this issue to prevent potential drivability problems and to ensure accurate speed measurement and proper transmission function.

8. Can a faulty vehicle speed sensor affect the fuel economy of a 2016 GMC Sierra?

Yes, a faulty vehicle speed sensor can lead to inaccurate speed data, which can impair the engine and transmission efficiency, potentially leading to reduced fuel economy.

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