BIF 522435.01 – Low Voltage Supply Fault in Windshield Wiper System (Fast Wipe). John Deere System Advisory.

BIF 522435.01 (BIF )

Code: 522435.01



Error code BIF 522435.01 is triggered when the Power Module PC0 detects a supply voltage of less than 3 volts at the output for the windshield wiper (lead 0772) when the wiper switch is set to the fast wipe position. This low voltage condition indicates a problem in the power supply circuit, which can prevent the windshield wiper from operating correctly in the fast wipe mode.


The low voltage condition may result in inadequate operation of the windshield wiper at the fast speed setting, potentially reducing or preventing wiper functionality, which can impair visibility during adverse weather conditions.


  • Inspect and Test Power Supply Wiring: Examine the wiring and connections associated with lead 0772 for any signs of damage, wear, or loose connections that might be causing the low voltage issue.
  • Evaluate Relay and Connectors: Inspect the relay and its connectors for faults or degradation that could contribute to voltage drop. Replace the relay if it is found to be defective.
  • Check Voltage at Power Module PC0: Measure the voltage output from the Power Module PC0 to ensure it is providing adequate power to the relay. If the module is found to be at fault, it may need repair or replacement.
  • Test for Continuity: Use a continuity tester to ensure there are no breaks or open circuits in the wiring leading to the windshield wiper motor.
  • System Reset and Voltage Recheck: After making any repairs or replacements, reset the system to clear the diagnostic trouble code. Recheck the voltage supply to the windshield wiper relay to ensure it is now within the correct range.
  • Comprehensive Electrical Diagnostics: Conduct thorough diagnostics on the entire circuit to ensure no additional electrical issues are present that could affect the operation of the windshield wiper.


Maintaining the electrical integrity of vehicle systems is crucial for proper functionality and safety. Regular inspections and prompt resolution of voltage supply issues are important for the longevity and reliability of the windshield wiper system, especially in adverse weather conditions where visibility is critical.

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