Required OBD monitors must be set to “Ready” before getting an inspection. Readiness monitors are set by a procedure known as a Drive Cycle. In most cases, a few days of normal city and highway driving will complete the Drive Cycle and set the required monitors to "Ready." Many repair technicians can verify that the required readiness monitors are set to “Ready.”
Vehicles that have had recent repairs, had the battery disconnected or replaced will have the monitors listed as "Not Ready" and will require normal highway and city driving for several days prior to testing or retesting. These procedures are not guaranteed to work for all vehicles.
If you received an “Incomplete Inspection Report,” it may be because:
- Your On Board Diagnostic (OBD) system is “Not Ready.”
OR
- Your OBD system had problems communicating with the station’s test equipment.
If you need assistance or have questions about vehicle Drive Cycles, contact an Emissions Technical Center.
NOTE: You must follow posted speed limits, traffic laws and road conditions when performing the Drive Cycle procedures.