Advanced Diagnostic Technician

About the role

DHT is looking for an experienced diagnostic technician with strong technical and leadership skills to join our main shop in Reese, Michigan on first shift. This is not a routine maintenance position. We're looking for an experienced technician who can take on difficult problems across a Class 8 truck — engine, electrical, emissions, ABS, braking and other electronically controlled systems — work through them systematically to determine the root cause, and help provide technical direction when other technicians encounter complex issues. When a truck has a problem that isn't obvious, this is the person we want helping lead the diagnosis and figuring out why.

Responsibilities

• Perform advanced diagnostics on Class 8 trucks and related systems
• Troubleshoot engine performance, electrical and drivability concerns
• Diagnose emissions and aftertreatment systems, including DPF, DEF and SCR
• Diagnose ABS and electronically controlled braking systems
• Troubleshoot fault codes, warning lights and communication/network issues
• Perform electrical testing and interpret wiring diagrams and schematics
• Use OEM diagnostic software and electronic service information
• Diagnose intermittent and difficult-to-reproduce problems
• Determine root causes and recommend appropriate repairs
• Verify completed repairs and confirm equipment is ready to return to service
• Provide technical guidance and diagnostic support to other technicians
• Help develop troubleshooting skills and share diagnostic knowledge across the shop
• Maintain accurate diagnostic and repair documentation

Requirements

• Strong Class 8 truck diagnostic experience
• Demonstrated leadership skills and the ability to support and mentor other technicians
• Advanced electrical and electronic troubleshooting skills
• Thorough understanding of diesel engine and aftertreatment systems
• Experience with diagnostic platforms such as Detroit DiagnosticLink and Cummins INSITE
• Familiarity with systems and diagnostic platforms from Bendix and WABCO
• Ability to read and interpret wiring diagrams, schematics and technical service information
• Ability to troubleshoot systematically rather than rely solely on fault codes
• Strong problem-solving and root-cause analysis skills
• Strong communication and teamwork skills
• ASE certifications preferred

Schedule

First Shift

Location

DHT Main Shop — Reese, Michigan