Light was still on.
Check engine light on prius.
Now i knew from the internet that the most common cause of this is a loose gas cap.
Hold down your car brake and press the power button to turn the car on.
The video above shows how to locate the on board diagnostics obd plug on your 2010 prius how to read the trouble codes and how to reset or clear the check engine light using a scanner on your prius.
Continue holding down the brake as you press the odometer trip button.
Cold start drive until normal operating temp park at least 5 hours repeat two more times.
Turn off your car and put the key fob in the ignition.
So my prius check engine light came on the other day.
This technique follows the steps below to reset your check engine light and fix your car complications.
When my 2009 toyota prius reached approximately 65 000 miles the check engine light came on and the error code was p1121 indicating a problem with the coolant control valve.
Toyota prius check engine light reset.
I took the car to my local toyota dealership and their charge for replacing the part was 400.
It may signal a minor or major complication however ignoring it certainly makes the problem worse resulting in expensive damage and repair.
The light was still on.
The mechanic who inspected the valve said it was not closing securely.
I started the car again.
The on board diagnostic has to run and pass three consecutive times to turn off the light.
December 26 2017 by jonhughes.
Toyota prius check engine light reset finds a problem over the powertrain.
You may avoid all of the hassles if you understand the motives of this light coming.
Started the car again this morning.
For most evap codes that means at least 3 warm up cycles.
So i promptly unscrewed my gas cap and re screwed it in.
A check engine light can indicate a broad spectrum of problems with your 2010 toyota prius.