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P215A OBD2: Vehicle Speed - Wheel Speed Correlation

P215A OBD2: Vehicle Speed – Wheel Speed Correlation

The P215A OBD-II code indicates a discrepancy between the vehicle speed reported by the Vehicle Speed Sensor (VSS) and the speed detected by the Wheel Speed Sensors (WSS). This issue typically affects the Anti-lock Braking System (ABS) functionality.

What Does the P215A Code Mean?

The P215A code signifies a Vehicle Speed – Wheel Speed Correlation problem. The engine control module (PCM) communicates with the ABS module to ensure that the speed readings from both the VSS and the WSS are consistent. If they are not, the PCM will trigger the P215A error code.

What Causes the P215A Code?

Several factors can contribute to the appearance of the P215A code, including:

  • Failure of the Anti-lock Brake (ABS) control module
  • Malfunction of the Powertrain Control Module (PCM)
  • Defective Vehicle Speed Sensor (VSS)
  • Defective Wheel Speed Sensors (WSS)
  • Wiring issues or poor electrical connections

What Are the Symptoms of the P215A Code?

Common symptoms associated with the P215A code include:

  • Illumination of the ABS warning light on the dashboard
  • Deactivation of the ABS functionality

How Serious Is the P215A Code?

The severity of the P215A code is considered moderate. While it may not pose an immediate threat to vehicle safety, it is crucial to address the issue promptly to prevent further complications and ensure proper vehicle operation.

How to Diagnose the P215A Code

To accurately diagnose the P215A code, a mechanic may follow these steps:

  1. Use an OBD-II scanner to confirm the presence of the P215A code.
  2. Inspect the Vehicle Speed Sensor and Wheel Speed Sensors for damage or disconnection.
  3. Check the wiring and connections between the sensors and the PCM/ABS module.
  4. Test the functionality of the ABS control module and PCM.

Common Repairs for the P215A Code

Repairs for the P215A code may include:

  • Replacing defective Wheel Speed Sensors or Vehicle Speed Sensor
  • Repairing or replacing damaged wiring and connectors
  • Repairing or replacing the ABS control module or PCM if they are faulty

How Much Does It Cost to Fix the P215A Code?

The cost to diagnose and repair the P215A code can vary widely based on the specific issue and labor rates in your area. On average, you might expect to pay between $100 and $300 for diagnostics and repairs, but this can increase if more extensive repairs are needed.

Can I Fix the P215A Code Myself?

If you have experience with automotive repairs and access to the necessary diagnostic tools, you may be able to address some of the issues causing the P215A code, such as replacing a sensor or fixing wiring. However, for more complex repairs, such as those involving the ABS control module or PCM, it is advisable to seek assistance from a professional mechanic to ensure proper diagnosis and repair.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

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