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Global OBD II Diagnostics
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Select I/M Readiness from the
OBDII
Function List
menu and press .
The scan tool displays a message stat-
ing whether the I/M Readiness monitors
are completed.
Use the
arrow key to view the monitor statuses. If both monitor types are
supported, then use the
arrow keys to toggle between monitor
types.
• A status of “OK” means that the required driving conditions for that monitor
have been met and the monitor passed.
• A status of “Inc” means that the required driving conditions for that monitor
have not been met or the monitor did not pass.
• A status of “N/A” means the vehicle does not support that monitor.
When done, press the
key to return to the
OBDII Function List
.
READ CODES
The Read Codes function retrieves Diagnostic Trouble Codes (DTCs) from the
vehicle’s computer module(s). This function can be performed with the KOEO
or KOER.
These codes cause the computer to illuminate the Malfunction Indicator Lamp
(MIL) when an emission-related or driveability fault occurs. The MIL is also
known as the “service engine soon” or “check engine” lamp.
Select Read Codes and press
.
The Scan Tool retrieves the DTCs
stored in the vehicle’s computer mod-
ule(s).
The Scan Tool displays the DTCs or a message stating SYSTEM PASS: NO
CODES FOUND. Scroll down to view the DTCs or press the
key to return
to the
OBDII Function List.