Using the Diagnostic Tool
I/M READINESS TESTING
OBD2 49
If the vehicle needs to be driven in order to perform a Trip
Drive Cycle, ALWAYS have a second person help you.
One person should drive the vehicle while the other
person observes the Monitor icons on the Diagnostic Tool
for Monitor RUN status. Trying to drive and observe the
Diagnostic Tool at the same time is dangerous, and could
cause a serious traffic accident.
4. When a Monitor's Trip Drive Cycle is performed properly, the
Monitor icon on the Diagnostic Tool’s LCD display changes from
"flashing" to "solid,” indicating that the Monitor has run and finished
its diagnostic testing.
If, after the Monitor has run, the MIL on the vehicle's dash is not
lit, and no stored or pending codes associated with that
particular Monitor are present in the vehicle's computer, the
repair was successful.
If, after the Monitor has run, the MIL on the vehicle's dash lights
and/or a DTC associated with that Monitor is present in the
vehicle's computer, the repair was unsuccessful. Refer to the
vehicle's service manual and recheck repair procedures.
