Fresno Auto Repair

Mon - Fri: 7:30 AM - 5:30 PM


#passingsmogcheck #readinessindicators #onboarddiagnostic

Technicians are required to perform an OBD II (On-Board Diagnostic) check during the Smog Check inspection. Specifically, the technician visually checks to make sure the warning light is functional, and then the Smog Check test equipment communicates with the on-board computer for fault information. If a fault is currently causing the light to be on, you need to have the malfunctioning component repaired before you can pass the inspection. In Addition, the vehicle stores information known as "readiness indicators" to indicate if the vehicle is ready for an inspection. If too many readiness indicators are "incomplete," the vehicle will fail the inspection because it means that the vehicle has not been operated enough since the on-board memory was last cleared to allow all of the OBD system checks to complete. This can occur if a fault has recently been repaired, or if you have recently had a dead, disconnected, or replaced battery. It does not necessarily mean that anything is wrong with your car - it simply means that the vehicle hasn't had a chance to run all of its self-diagnostics to confirm that everything is okay. This was the case for this '07 Sonata.  It passed Smog Check and the customer was on their way.


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