Description:

This diagnostic trouble code is generated when the PTA control software detects a mismatch between the engine speed received via the CAN BUS and the speed of the transmission input speed sensor. This discrepancy indicates a potential issue with the sensor or the engine speed signal.

Reaction:

Limited or no function of the transmission until the error is corrected, indicating a critical issue with speed synchronization.

Recommendations:

Verify Engine Speed Signal:

• Check the CAN BUS for accurate transmission of the engine speed signal.
• Ensure there are no faults or interruptions in the CAN BUS communication.

Inspect Input Speed Sensor:

• Verify that the transmission input speed sensor is functioning correctly.
• Replace the sensor if it is found to be faulty.

Check Wiring and Connectors:

• Inspect the wiring and connectors associated with the input speed sensor and CAN BUS for signs of damage or disconnection.
• Repair or replace any damaged components.

Ensure Software Consistency:

• Make sure the control software is up to date and free of bugs.
• Update the software if a newer version is available.

Note:

Accurate synchronization between engine speed and transmission input speed is essential for proper vehicle operation. Regular monitoring and maintenance of sensors and communication lines are crucial.