Diagnostics & Drivability (OBD-II)

What this certification means

Diagnostics & Drivability is the highest-impact credential in modern automotive work. This certification proves you can systematically diagnose drivability problems using OBD-II tools, scope patterns, fuel trim analysis, and lab scopes.

What it covers

• OBD-II mode operation, generic vs. enhanced PIDs
• Fuel trim analysis (short and long term)
• Misfire diagnosis (mechanical, ignition, fuel, and injection sources)
• Oxygen sensor and wideband A/F sensor operation
• MAF, MAP, TP, and other input sensor diagnostics
• CAN bus fundamentals and network diagnostics
• Lab scope waveforms: injector, coil, alternator, secondary ignition
• Systematic drivability diagnostic flow

Who this is for

Any mechanic who wants to be the person the shop calls in on hard-to-crack drivability problems.