Case IH 2364-06 - BCM – BCM: Work Lamp #11 Current above normal or grounded circuit

The voltage supply wire for Work Lamp #11 has found a direct path to the chassis ground before reaching the lamp load, or the control module has detected an excessive current draw indicative of a short.

• MAGNUM AFS Connect
• Magnum
• Steiger
• Puma
• Optum
• Farmall series

1. 1

   Switch OFF the power supply by turning the ignition key to the OFF position.

2. 2

   Disconnect the electrical connector at Work Lamp #11 and disconnect the corresponding harness connector at the BCM to isolate the circuit.

3. 3

   Perform a continuity test between the work lamp's power supply wire (in the harness) and a known good chassis ground. Continuity (near 0 ohms) indicates a short to ground.

4. 4

   Trace the wiring harness for Work Lamp #11 back to the BCM, looking for chafing, pinched wires, or melted insulation (especially near cab frame or articulation joints).

5. 5

   Check the work lamp assembly itself for internal shorts by measuring the resistance across its terminals.

1. 1

   Disconnect battery

   Disconnect the machine's negative battery terminal to prevent further electrical damage.

2. 2

   Locate wiring damage

   If diagnostic checks revealed a short in the wiring harness, locate the exact point of damage (often at pinch points or cab pass-throughs).

3. 3

   Repair wiring harness

   Cut out the damaged section of the wire. Splice in a new section of wire of the same gauge using weather-sealed (heat-shrink) crimp connectors, or replace the affected harness section entirely.

4. 4

   Replace work lamp

   If the short was found to be internal to the work lamp housing, remove the mounting hardware and replace the work lamp assembly.

5. 5

   Reconnect components

   Reconnect the BCM harness and plug the connector back into Work Lamp #11.

6. 6

   Test operation

   Reconnect the negative battery terminal, turn the ignition ON, and test the work lamp operation.

7. 7

   Clear fault code

   Clear the inactive fault code using a diagnostic tool (such as the Case IH EST or Jaltest).