====== Troubleshooting ======

===== Skilled Level =====

Recommended for all students who will work with the electrical system.

• Demonstrate safe robot shutdown before inspecting or repairing wiring.

• Use a multimeter to measure:

• Battery voltage

• Continuity of a wire

• Voltage at a motor controller input/output

• Identify common wiring issues (loose connections, poor crimps, frayed wires).

• Check correct wiring to the main breaker, PDH/PDP, RoboRIO, VRM, motor controllers.

• Perform a visual inspection of the electrical system and recognize missing/loose connections.

• Diagnose and replace a faulty fuse or breaker.

----

===== Independent Level =====

For students who will actively maintain and debug the robot during build and competition.

• Have completed Basic Troubleshooting.

• Assist a teammate in completing at least one Basic troubleshooting task.

• Demonstrate how to identify and fix:

• Reversed polarity connections

• CAN bus breaks (e.g., single point failure, missing termination, incorrect daisy-chain)

• Loose crimps or lugs on high-current connections

• Use a multimeter to verify proper power distribution across the PDH/PDP.

• Test and identify a bad battery using both voltage and load testing.

• Diagnose and correct radio or RoboRIO power issues.

• Demonstrate ability to follow a troubleshooting flowchart or checklist systematically.

• Perform a brownout diagnosis (robot resets, voltage dips under load).

----

===== Leader Level =====

For electrical leads and pit crew members responsible for competition-level reliability.

• Have completed Advanced Troubleshooting.

• Assist another student in completing at least one Advanced troubleshooting requirement.

• Lead the team in diagnosing a competition-critical electrical failure (e.g., robot won’t enable, intermittent CAN dropouts).

• Train others to use a multimeter, battery beak, or load tester effectively.

• Create and maintain a team troubleshooting guide/checklist for electrical systems.

• Demonstrate ability to identify and fix intermittent faults (loose CAN wiring, radio resets, poor grounding).

• Lead a pit-side rapid response drill: robot won’t turn on, CAN bus fails, brownout occurs.

• Communicate troubleshooting steps clearly to drive team and programming team, ensuring cross-team collaboration.

• Supervise and ensure the robot passes electrical re-inspection after repairs at competition.