John Deere 002348.06 – VLC: High Amps at High Beam Headlight Pin

The Vehicle Load Center (VLC) has detected an overcurrent condition at the high beam headlight pin when the headlights are turned on. This safety feature protects the wiring and electrical components from damage and may disable the high beam circuit. This condition is typically caused by a faulty bulb with an internal short, a short circuit to ground in the wiring harness, or an internal failure within the main control module itself.

• 7020
• 7030
• 8020
• 8030
• 8130
• 8230
• 8330
• 8430
• 8530
• 9030
• 9230
• 9330
• 9430
• 9530
• 9630

1. 1

   Cycle the key switch to rule out transient electrical issues

2. 2

   Inspect high beam headlight bulbs for burnout or visible damage

3. 3

   Check for and temporarily disconnect any aftermarket electrical accessories or non-standard lights that may be overloading the circuit

4. 4

   Visually inspect the wiring harness leading to the high beam headlights for chafing, pinching, or corrosion, paying close attention to the connections at the back of the headlight assembly

5. 5

   Check the main lighting fuses for any signs of failure

1. 1

   Replace headlight bulbs

   Even if a bulb does not appear burnt out, it may have an internal short. Replace both high beam headlight bulbs with new ones. Raise the hood, disconnect the wiring harness, remove the rubber protector, rotate the bulb assembly to release it, and install the new bulb. Do not touch the glass with bare hands.

2. 2

   Test the circuit

   After replacing the bulbs, turn on the high beams and check if the fault code returns.

3. 3

   Inspect and test wiring

   If the fault persists, use a multimeter and a model-specific wiring diagram to check for continuity and shorts to ground in the high beam circuit.

4. 4

   Consult a John Deere Dealer

   If the above steps do not resolve the issue, the problem may lie with the Vehicle Load Center (VLC) itself. Consult an authorized dealer, who has access to specialized diagnostic tools and detailed service manuals to test the VLC and other control modules.