I am wondering what exactly the rules are for MIL to come on on a OBD II system.
For example what makes the same exact failure code set to have MIL on at one point in time and MIL off later.
The example code set that gave me MIL on for while, then MIL off for about half day and then MIL on again is P420 Confirmed P301 Confirmed P302 Confirmed P303 Confirmed P304 Confirmed P300 Confirmed P420 Pending
By the way what exactly is the difference between confirmed and pending in a scanner (in particular for ACTRON CP9575) ?
And which one is more recent?