Equus 3140 - Scan Tool CanOBD2&1 Kit - Manual (Page 38)

36 CanOBD2&1
E
OBD2 Systems
I/M READINESS TESTING
■ See page 30 for procedures to erase DTCs from the vehicle's on-
board computer.
■ Write the codes down on a piece of paper for reference before
erasing.
3. After the erase procedure is performed, most of the Monitor icons
on the CanOBD2&1 Scan Tool’s display will be flashing. Leave the
CanOBD2&1 Scan Tool connected to the vehicle, and perform a Trip
Drive Cycle for each "flashing" Monitor:
Misfire, Fuel and Comprehensive Component Monitors run
continuously and their icons will always be on solid, even
after the erase function is performed.
■ Each DTC is associated with a specific Monitor. Consult the vehi-
cle's service manual to identify the Monitor (or Monitors) associ-
ated with the faults that were repaired. Follow the manufacturer's
procedures to perform a Trip Drive Cycle for the appropriate
Monitors.
■ While observing the Monitor icons on the CanOBD2&1 Scan
Tool’s display, perform a Trip Drive Cycle for the appropriate
Monitor or Monitors.
WARNING: 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 CanOBD2&1 Scan Tool for Monitor RUN
status. Trying to drive and observe the CanOBD2&1 Scan 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 CanOBD2&1 Scan Tool’s 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 particu-
lar 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 vehi-
cle's computer, the repair was unsuccessful. Refer to the vehi-
cle's service manual and recheck repair procedures.