BIF 002348.12 – Unexpected Current in Full Beam Headlights When Off. John Deere System Advisory.

BIF 002348.12 (BIF 2348.12)

Code: 002348.12

Shortcode: 2348.12


Error code BIF 002348.12 is activated when the Power Module PC0 detects current flow exceeding 1 amp at the output for the full beam headlights on the cab frame (E07/E08), despite the headlights being switched off. This condition suggests a potential short in the circuit or an internal fault within the power module itself, leading to unwanted power drainage and potential electrical hazards.


The power module may initiate a safety protocol to restrict further current flow and mitigate any potential risks associated with this unexpected current.


  • Inspect Circuit for Shorts: Thoroughly examine the wiring and connections for the E07/E08 full beam headlights, focusing on lead 1029, to identify and repair any shorts or damage in the circuit.
  • Test Power Module PC0: Evaluate the Power Module PC0 to ensure it is not malfunctioning and causing unintended current flow. Replace or repair the module if an internal fault is detected.
  • Verify Headlight Switch Functionality: Check the headlight switch and its associated wiring to confirm it is effectively disconnecting the circuit when turned off.
  • Electrical System Diagnostics: Perform comprehensive electrical diagnostics to trace and resolve any hidden issues that could contribute to this fault, such as faulty relays or connectors.
  • System Reset and Testing: After repairs are made, reset the system to clear the diagnostic code and test the headlights and associated circuits to confirm the issue has been resolved and no unintended current is present when the headlights are off.


Addressing unexpected current flows promptly is crucial for maintaining the electrical safety and integrity of the vehicle. Regular maintenance and systematic checks of the electrical circuits help prevent such issues, ensuring all systems operate safely and efficiently.

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