P215B Fault Code

Vehicle Speed Output Shaft Speed Correlation

• What does that mean?
• Symptoms
• Causes
• Solutions

The P215B fault code indicates a discrepancy between the vehicle speed sensor and the output shaft speed sensor. This correlation is crucial for accurate transmission operation and overall vehicle performance. When these two sensors do not provide matching data, it can lead to poor shifting performance, increased emissions, and even damage to transmission components.

What are the symptoms of the P215B code?

Symptoms that may accompany the P215B code include:

• Erratic shifting behavior or difficulty shifting
• Speedometer not functioning correctly
• Engine stalling or running rough
• Illumination of the check engine light
• Poor fuel economy due to transmission problems.

What causes the P215B code?

Common causes of the P215B code include:

• Malfunctioning vehicle speed sensor
• Faulty output shaft speed sensor
• Damaged wiring or connectors between sensors
• Issues with the engine control module (ECM)
• Transmission fluid issues, such as low levels or contamination.

How to fix P215B?

To resolve the P215B fault code, technicians typically follow these steps:

1. Perform a diagnostic scan to confirm the P215B code and check for additional codes.
2. Inspect the vehicle speed sensor and output shaft speed sensor for any signs of damage or wear.
3. Test the sensors and perform circuit testing to ensure proper operation.
4. Repair or replace any damaged wiring and connectors.
5. If necessary, replace the malfunctioning sensors.
6. Clear the fault codes and test drive the vehicle to ensure the issue is resolved.