John Deere BIF301141.31 – BIF: Switch Off Worklights While Driving on Road

This fault code is an operator information message rather than a hardware failure. It serves as a safety and legal compliance reminder programmed into the tractor's system, triggering when the vehicle speed sensor detects the tractor is traveling at road speeds while the worklights are still switched on.

• 6020
• 6120
• 6220
• 6320
• 6420
• 6420S
• 6510
• 6610
• 6810
• 6910
• 6910S
• 6520
• 6620
• 6820
• 6920
• 6920S
• 6120L
• 6220L
• 6320L
• 6420L
• 6520L
• 7430
• 7530 Premium

1. 1

   Verify if the worklights are actually switched on while the tractor is moving at road speeds

2. 2

   If the worklights are physically off but the code still appears, check the worklight toggle/rocker switch on the dash for a short circuit or sticking contacts that might be sending a false 'ON' signal

3. 3

   Check the vehicle speed sensor (transmission shaft speed sensor) for faults, as it may send erratic or false high-speed signals to the BIF module when the tractor is stationary or moving slowly

1. 1

   Acknowledge message

   Acknowledge the message on the BIF display.

2. 2

   Switch off worklights

   Manually switch off the front and rear worklights using the cab rocker switches when traveling on public roads. Under normal circumstances, this clears the code.

3. 3

   Test and replace worklight switch

   If the code persists when the lights are confirmed off, access the equipment control panel and test the worklight switch for proper operation. Replace the switch if it fails to open the circuit when in the OFF position.

4. 4

   Inspect and replace speed sensor

   If the switch is functioning correctly, inspect the transmission speed sensor and its wiring harness for damage, moisture, or corrosion. Replace the speed sensor if it is providing inaccurate speed data to the controller.