Description:

This diagnostic trouble code (TCU 523700.07) is generated if, with power flowing through the transmission, the registered ratio between the transmission input speed and hydrostatic speed does not match the actual transmission output speed. This discrepancy implies a problem with the transmission.

Reaction:

When this error code is detected, the equipment may experience transmission performance issues due to inconsistent speed readings. The system might display warnings or enter a protective mode to prevent further damage, resulting in limited operational capabilities.

Recommendations:

1. Perform Preliminary Tests:

• Run Initial Diagnostics: Follow the “Preliminary Tests for Diagnostic Trouble Code TCU 523700.07” to identify potential issues.
• Check Sensor Alignment: Ensure that all transmission speed sensors are correctly aligned and installed.

2. Inspect Sensors and Wiring:

• Inspect for Damage: Check the sensors and associated wiring for any signs of damage or disconnection.
• Repair or Replace: Repair or replace any faulty sensors or wiring components.

3. Perform Pressure Tests:

• Follow Test Procedures: Use the “AutoPowr/IVT Transmission — Test Result Table” to conduct pressure tests on the transmission and other related components.
• Record Results: Document all test results and compare them with standard values.

4. Consult AfterSales Service:

• Submit Reports: If the issue cannot be resolved through preliminary tests, complete the required forms and send them to the relevant AfterSales Service station along with the service report.
• Follow Recommendations: Implement any recommendations provided by the AfterSales Service based on the test results.

Note:

Accurate diagnosis and resolution of transmission issues are crucial for maintaining optimal equipment performance. Regular inspections and adherence to diagnostic procedures can help identify and resolve discrepancies in transmission speed readings.