Description:

This diagnostic trouble code, PTQ 522847.05, indicates that the circuit current for the proportional solenoid valve for transmission enable is too low, suggesting an open circuit. This error is detected within 200 msec in normal operating mode and 400 msec in come-home mode.

Reaction:

When this error is detected, the control software shifts the transmission to neutral to prevent potential damage.

Recommendations:

Inspect Electrical Connections:

• Check the wiring and connectors associated with the proportional solenoid valve for transmission enable.
• Ensure all connections are secure and free of corrosion or damage.

Test Solenoid Valve:

• Use a multimeter to measure the current at the solenoid valve signal input.
• Replace the solenoid valve if it is found to be defective.

Verify Circuit Integrity:

• Inspect the circuit for any signs of open connections or loose wires.
• Repair or replace any identified issues to ensure proper current flow.

Update Software:

• Verify that the control software is up-to-date with the latest version.
• Update the software if there are any available updates to improve system accuracy and error handling.

Monitor System Performance:

• After addressing the above steps, test the proportional solenoid valve to ensure proper functionality.
• Confirm that the current at the signal input is within the specified range during operation.

Note:

• Regular inspection and maintenance of the solenoid valve’s electrical components can prevent low current issues.
• If the issue persists despite taking the above measures, consult technical support or the manufacturer for further assistance.