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Engine-Codes – Generic – P2160

P2160 Code - Vehicle Speed Sensor 2 Circuit Low Voltage

Quick Answer

The P2160 diagnostic trouble code (DTC) indicates a problem with the Vehicle Speed Sensor 2 (VSS2) circuit in a vehicle. Common causes include Faulty Vehicle Speed Sensor 2 (VSS2), Damaged or corroded wiring/connectors leading to VSS2, ECM software or hardware issues. 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 indicates Vehicle Speed Sensor 2 Circuit Low Voltage.
Common causes
Common causes include Faulty Vehicle Speed Sensor 2 (VSS2), Damaged or corroded wiring/connectors leading to VSS2, ECM software or hardware issues.
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 12, 2024
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Code P2160 Description

The P2160 diagnostic trouble code (DTC) indicates a problem with the Vehicle Speed Sensor 2 (VSS2) circuit in a vehicle. The VSS2 is a crucial component that helps measure the speed of the vehicle and provides this information to the Engine Control Module (ECM) for various functions such as fuel injection timing, transmission shift points, and speedometer operation. When the VSS2 circuit registers a low voltage, it means that there is a malfunction or fault in the sensor or its associated wiring, leading to inaccurate speed readings and potential performance issues.

OBDII Code P2160 - Vehicle Speed Sensor 2 Circuit Low Voltage
P2160 Code - Vehicle Speed Sensor 2 Circuit Low Voltage

Common Causes of P2160

  1. Faulty Vehicle Speed Sensor 2 (VSS2)
  2. Damaged or corroded wiring/connectors leading to VSS2
  3. ECM software or hardware issues
  4. Debris or contamination affecting VSS2 sensor performance
  5. Physical damage to the VSS2 sensor itself

Symptoms of P2160

  1. Inaccurate speedometer readings or speedometer not working
  2. Poor acceleration or hesitation during acceleration
  3. Harsh or erratic shifting from the transmission
  4. Check Engine Light illuminated on the dashboard
  5. Loss of cruise control functionality

How to Fix P2160

  1. Begin by diagnosing the VSS2 circuit using a diagnostic scanner to confirm the P2160 code and identify the specific issue.
  2. Inspect the VSS2 sensor, wiring, and connectors for any visible damage, corrosion, or debris. Clean or repair as necessary.
  3. Test the VSS2 sensor using a digital multimeter to check for proper voltage output. Replace the sensor if it fails this test.
  4. Clear the DTC and reset the ECM to see if the code returns after repairs. Drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, perform a more in-depth inspection of the ECM and related components to identify any underlying issues that may be causing the low voltage condition.

Cost to Fix P2160

The typical repair costs for addressing a P2160 code related to the Vehicle Speed Sensor 2 Circuit Low Voltage can range from $150 to $500, including parts and labor. However, the specific 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. Auto repair shops commonly charge between $80 and $150 per hour for labor, but rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's essential to factor in these variables when estimating the total repair costs for this issue.

What does this mean?

Tech Notes for P2160









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Code P2160 Information for Specific Makes

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 Code

1. What does the OBDII code P2160 mean?

P2160 indicates that the vehicle's powertrain control module (PCM) has detected a low voltage signal from Vehicle Speed Sensor 2, which monitors wheel or transmission speed.

2. What are the common symptoms of a P2160 code?

Symptoms may include erratic or incorrect speedometer readings, ABS or traction control warnings, poor shifting performance, and reduced fuel efficiency.

3. What causes the P2160 code to appear?

Common causes include a faulty speed sensor, damaged wiring or connectors, corrosion in the circuit, or a malfunctioning PCM.

4. Can I drive with a P2160 code?

While the car may still be drivable, issues like inaccurate speed readings and shifting problems can affect safety and performance, so it’s best to address the issue promptly.

5. How is a P2160 code diagnosed?

Technicians typically inspect the sensor, wiring, and connectors for damage or corrosion, use a multimeter to check voltage and continuity, and may test the PCM for faults.

6. How do I fix the P2160 code?

Repairs may include replacing a faulty speed sensor, repairing or replacing damaged wiring or connectors, cleaning corroded terminals, or reprogramming/repairing the PCM if needed.

7. Can a bad battery cause a P2160 code?

A weak or failing battery can cause voltage issues that may trigger this code, though it’s not a common cause. Testing the battery and charging system can help rule this out.

8. How much does it cost to fix a P2160 code?

Depending on the cause, repairs can range from $100 to $300 for a sensor replacement, while more extensive wiring repairs or PCM replacements may cost more.

9. Is P2160 related to the ABS or traction control system?

Yes, since Vehicle Speed Sensor 2 often works with ABS and traction control systems, this code can trigger warning lights or affect these systems' functionality.

10. Can I clear the P2160 code without fixing the problem?

Clearing the code without addressing the underlying issue may temporarily turn off warning lights, but the problem will likely return and could cause further complications.

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