#Diagnostics

Engine Diagnostics & Repair

Why It's Worth Running Diagnostics Even Without a Warning Light On

A check engine light only comes on once something is already outside its normal range. A diagnostic scan during routine service can catch things trending in the wrong direction before that happens.

Engine Diagnostics & Repair

What a Check Engine Light Actually Tells a Technician

A diagnostic code points to a system, not necessarily a single broken part. Here's what actually happens when a technician plugs in a scanner, and why the code is the start of the diagnosis, not the end of it.