* Location: Prices differ based on geographic location (e.g., urban vs. rural areas, state). Labor costs and competition influence pricing.
* Shop Type: Independent mechanics often charge less than dealerships. Chain auto repair shops fall somewhere in between.
* Diagnostic Complexity: A simple check engine light might be less expensive than a complex issue requiring extensive testing. If the problem is obvious, the diagnostic may be shorter and thus cheaper.
* Additional Repairs: If the diagnostic reveals needed repairs, those costs are separate from the diagnostic fee itself.
Expect to pay anywhere from $50 to $150 for a basic engine diagnostic test. This range covers the cost of hooking up a scan tool, reading the trouble codes, and a preliminary assessment. If more advanced testing is needed (e.g., pressure tests, sensor checks), the cost could easily exceed this range. It's always best to get an upfront estimate from the repair shop before any work is done.
