PL1 000158.03 – Supply Voltage (ELX) Too High

PL1 000158.03 (PL1 158.03)

Code: 000158.03

Shortcode: 158.03

Description:

This diagnostic trouble code is generated when the control software detects a supply voltage (ELX) exceeding 16 V. This can occur due to overcharging from the alternator, issues with the voltage regulator, or wiring faults leading to excessive voltage supply.

Reaction:

When this error is detected, the equipment may enter a protective mode to prevent damage to electronic components. This could include reducing functionality or shutting down certain systems.

Recommendations:

  • Inspect Alternator and Voltage Regulator:
    • Check the alternator for overcharging issues.
    • Verify the voltage regulator is functioning correctly and not allowing excessive voltage.
  • Examine Wiring and Connections:
    • Inspect wiring for any signs of damage, fraying, or poor connections.
    • Ensure all connections are secure and free from corrosion.
  • Check Battery Health:
    • Test the battery for any faults or issues that could lead to abnormal voltage readings.
  • Monitor System Voltage:
    • Use a multimeter to monitor system voltage and ensure it stays within the normal range (typically 12-14 V).

Note:

High supply voltage can damage sensitive electronic components. Regular maintenance of the alternator and voltage regulator is crucial to prevent this issue.


Control Units: John Deere

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