manfredeule4

Seat Leon System Readiness Check Issue

I've got a bit of a head-scratcher on my hands. My 2019 Seat Leon with a diesel engine is throwing a 'System readiness check incomplete' error. It happened right after I used an OBD2 scanner to check for some unrelated issues. Now I have an error stored in the error memory and an error message in the speedometer. Is this something I should be worried about?

A 2019 Seat Leon with a diesel engine displayed a 'System readiness check incomplete' error after using an OBD2 scanner. This issue likely arose because the car's computer needed to complete a series of self-tests that were interrupted by the OBD reset. The suggested solution was to drive the car under specific conditions to allow these tests to complete. After following this advice, the error message was resolved.

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4 comment(s)

Sounds like an OBD readiness issue. I had something similar with my old Volvo V70 after I cleared some codes. The car's computer needs to run a series of self-tests, and those tests need specific driving conditions to complete. Think of it like trying to get all the ingredients for a cake. If you are missing the eggs it won't bake.

So, if I understand correctly, the computer needs to do some internal checks, and these checks weren't done because of the OBD reset? How long or how much do I need to drive until these checks are completed?

Yeah, that's the gist of it. It's all about completing the onboard diagnostics. I never got it to work on my own. I just took it to a workshop, and they told me to drive a particular drive cycle. They did some computer reset as well to make sure it was properly set. After some time, it disappeared. It's annoying but usually not a real problem.

Just wanted to let you know I sorted it. Turns out it was exactly as you described. I took it for a longer drive, and the system readiness check completed itself. No more error message. Thanks for the help!

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SEAT

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LEON