Perform first-line troubleshooting on the machine and at the bench (power, ground, wake-up, harnesses, connectors, antennas, modems, storage); verify that expected CAN and Ethernet traffic reaches the logger; capture evidence and escalate to technical owners when the issue is beyond approved procedures. Required Skills, Knowledge, & Relevant Work Experience: Hands-on electrical troubleshooting skills: reading schematics and pinouts, using a multimeter, diagnosing power, ground, fuse, and intermittent connection problems, and inspecting connector and harness workmanship.