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 Diagnos tic Trou ble Codes (DTCs) fr om the
vehicle’s computer module(s). This function can be perf ormed 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 re turn
to the

OBDII Function List.