AutoCodesGeneric – P2160

P2160 Code - Vehicle Speed Sensor 2 Circuit Low Voltage

Quick Answer

The Vehicle Speed Sensor (VSS) provides vehicle speed information to the Engine Control Module (ECM). Common causes include Faulty Vehicle Speed Sensor (VSS), Vehicle Speed Sensor harness is open or shorted, Vehicle Speed Sensor 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
P2160 indicates Vehicle Speed Sensor 2 Circuit Low Voltage.
Common causes
Common causes include Faulty Vehicle Speed Sensor (VSS), Vehicle Speed Sensor harness is open or shorted, Vehicle Speed Sensor 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 27,336
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 08, 2022
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Code P2160 Description

The Vehicle Speed Sensor (VSS) provides vehicle speed information to the Engine Control Module (ECM). The VSS is a permanent magnet generator. The sensor is mounted in the transfer case facing the rear internal gear which is splined to the output shaft assembly. As the output shaft and internal gear rotate, the toothed rotor of the internal gear produces AC voltage as the rotor teeth pass through the magnetic field of the sensor. The AC voltage level and the number of pulses increase as the speed of the vehicle increases. The ECM converts the voltage to vehicle speed. The ECM uses the output shaft speed signal to determine shift timing, as well as transfer case range. The Diagnostic Trouble Code (DTC) will be set when there is no speed signal from the transfer case speed sensor.
OBDII Code P2160 - Vehicle Speed Sensor 2 Circuit Low Voltage - AutoCodes.com
P2160 Code - Vehicle Speed Sensor 2 Circuit Low Voltage

What are the Possible Causes of the DTC P2160?

  • Faulty Vehicle Speed Sensor (VSS)
  • Vehicle Speed Sensor harness is open or shorted
  • Vehicle Speed Sensor circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P2160?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2160 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.

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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.

Discuss the causes and fixes for P2160 OBDII Code

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