Actron CP9180 OBD II AutoScanner Plus - Manual (Page 52)

Vehicle Diagnostics
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Read Codes
✓
The Read Codes function allows the Scan Tool to read the DTCs from
the vehicle’s control modules. DTCs are used to help determine the
cause of a problem or problems with a vehicle. These codes cause the
control module to illuminate the malfunction indicator lamp (MIL)
when emission-related or driveability fault occurs. MIL is also known
as service engine soon or check engine lamp.
✓
Read Codes can be done with the key on engine off (KOEO) or with
the key on engine running (KOER).
From OBD II Function List:
1. Select Read Codes.
•Use
UP or DOWN arrow
key until Read Codes is
highlighted.
•Press
ENTER.
✓
If no DTCs are present a message stating System Pass: No Faults
Detected is displayed.
2. Select a vehicle
•See Vehicle Selection for details regarding this step.
✓
This step is available only if manufacturer’s specific enhanced DTCs
were read from the vehicle and a vehicle has not been selected since
the tool was powered up.
✓
Selecting a vehicle may provide the user with the manufacturer’s
definition for the manufacturer specific DTC(s) returned by the
vehicle.
OBD II Function List
=====================
I/M Readiness
Read Codes
Pending Codes
Erase Codes
State OBD Check
View Data