Bad F4 or F6 Fuse

Failure detected in fuses F4 or F6, affecting control or lighting circuits.

Possible causes

Short circuit in remote indicator lights
Transient voltage surge
Damaged external accessory connections
Interface board defect

Recommended actions

Replace blown F4/F6 fuses
Verify remote indicator light harnesses
Check cleanliness of external connectors
Test current draw on control accessories

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