System Readiness Test Codes: Notes

If battery has been disconnected, DTCs have been cleared or PCM has been reset, readiness codes will reset. In some states part of emission testing is to ensure readiness codes are complete. If readiness codes are not complete, emission test cannot be finished.

To check if readiness codes are complete, turn ignition switch on, engine off. MIL will illuminate for 15-20 seconds. If MIL goes off, readiness codes are complete. If MIL blinks several times, one or more readiness codes are not complete.

To set each code, drive vehicle or run engine as described in following procedures.