Laser 5091 Code Reader User’s Guide
Laser 5091 Code Reader User’s Guide
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The
Freeze Data
function is used to view freeze frame data, a snapshot of vehicle
operating conditions recorded by the on-board computer at the time of an
emission-related fault.
√ If codes were cleared, freeze data may not be stored in vehicle memory
depending on vehicle.
To view freeze frame data:
1.
Use
the
UP/DOWN
key to select
Freeze Data
from
Diagnostic Menu
screen.
2.
Press
the
ENTER
key to confi rm.
3. View freeze frame data on screen.
√ If more than one screen of information is retrieved, use the
UP/DOWN
key
to view additional data.
√ If no freeze frame detected, a “No Freeze Data Found!” message displays.
√ Some vehicle may not support this function, and a “Not Support This
Function!” message display.
4.
Press
the
ENTER
key to return to
Diagnostic Menu
.
The I/M Readiness function is used to view a snapshot of the operations for the
emission system on OBDII/EOBD vehicles.
√ I/M Readiness is a useful function used to check if all monitors are OK or N/A.
√ The vehicle’s computer performs tests on the emission system during
normal driving conditions. After a specifi c amount of drive time (each
monitor has specifi c driving conditions and time required), the computer’s
monitors decide if the vehicles emission system is working correctly. When
the monitor’s status is:
• OK - vehicle was driven enough to complete the monitor.
• INC (Incomplete) - vehicle was not driven enough to complete the monitor.
• N/A (Not Applicable) - vehicle does not support that monitor.
√ I/M Readiness function is performed with the KOER or KOEO.
√ There are two types of I/M Readiness tests:
• Since DTCs Cleared - shows status of the monitors since the DTCs were
last
cleared.
• This Drive Cycle - shows status of monitors since the start of the current
drive
cycle.
√ Over is a list of abbreviations and names of OBD II monitors supported
by the code reader.
6.4 Viewing Freeze Data
6.5 Reading I/M Readiness Status Data
