Description:

This error code, PTR 000158.01, is triggered by the Power Train Reverser (PTR) control unit when it detects that the system voltage drops below 9.0 V for more than 2 seconds. This can occur due to issues with the battery, alternator, or electrical connections causing insufficient power supply.

Reaction:

When this error is detected, the PTR control unit may limit the functionality of the transmission to prevent damage. The system may enter a protective mode, reducing performance or disabling certain features.

Recommendations:

Inspect Battery:

• Check the battery voltage and ensure it is fully charged.
• Test the battery for any signs of deterioration or failure. Replace if necessary.

Examine Alternator:

• Verify that the alternator is functioning correctly and providing adequate charging voltage.
• Inspect the alternator belt for wear and proper tension. Replace if worn or loose.

Check Electrical Connections:

• Inspect all electrical connections related to the PTR control unit, battery, and alternator.
• Ensure all connections are secure, clean, and free from corrosion.

Inspect Wiring:

• Check for any damaged or frayed wires in the electrical system.
• Repair or replace any faulty wiring to ensure proper voltage supply.

Monitor System Voltage:

• Use a multimeter to monitor the system voltage during operation.
• Ensure the voltage remains above 9.0 V under all operating conditions.

Update Software:

• Ensure that the PTR control unit software is up-to-date.
• Apply any available software updates or patches from the manufacturer.

Note:

Maintaining a stable system voltage is crucial for the proper operation of the PTR control unit. Regular maintenance of the electrical system can help prevent voltage-related issues. Ensure that all components are in good working condition to avoid disruptions.