PTA 000191.11 – Transmission Output Speed Does Not Correspond to Wheel Speed
PTA 000191.11 (PTA 191.11)
Code: 000191.11
Shortcode: 191.11
Description:
This diagnostic trouble code is generated when there is a discrepancy in frequency between the signal of the transmission output speed sensor and the amplified signal of the wheel speed sensor.
Reaction:
Limited or no function of the transmission until the error is corrected, indicating a critical issue with speed signal matching.
Recommendations:
Compare Speed Signals:
- Verify the transmission output speed and wheel speed sensor signals to ensure they match.
- Replace the sensor if there is a significant discrepancy between the signals.
Inspect Wiring and Connectors:
- Check the wiring and connectors of both sensors for signs of damage or disconnection.
- Repair or replace any faulty components.
Ensure Proper Signal Amplification:
- Verify that the wheel speed sensor’s signal amplification is functioning correctly.
- Replace the amplifier if it is not working properly.
Monitor Vehicle Conditions:
- Ensure the vehicle is not operating under conditions that could cause abnormal speed variations.
Note:
Ensuring that the transmission output speed matches the wheel speed is crucial for accurate vehicle operation. Regular checks and maintenance of sensor signals and their amplification can help prevent such issues.