2011 Chevrolet Other Dumb Question about Diagnostic Scanner

2011 CHEVROLET
35,000 MILES • 1.2L • MANUAL
Avatar
THEHALLMARK
  • MEMBER
  • 1 POST
a) This may sound dumb, but if there is no 'Check Engine' light or any other warning light ON, is there any use of a diagnostic scanner. If yes, could you provide an example of a problem that can be diagnosed with the scanner in the absence of fault code or check engine light?

Aug 19, 2015 at 11:57 PM
Advertisement
Avatar
WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
Of course there is, assuming this is a professional level scan tool.

Codes are only a starting point. The data is far more of a tool to diagnose an issue and get an understanding to what is taking place in the system. A bidirectional tool can also be used to activate circuits for testing or performing learning functions.

Not having codes merely separates the DIYers from the pros.
Aug 20, 2015 at 12:25 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle