Read Codes - Actron OBD II AutoScanner CP9135 Instructions Manual

3.2 Read Codes

The Read Codes function retrieves
Diagnostic Trouble Codes (DTCs)
from the vehicle's computer modules.
This function can be performed with
the KOEO or KOER.
There are two types of codes, Malfunction Indicator Lamp (MIL) codes
and Pending codes. An icon ( ) will be displayed next to DTCs that
are Pending codes.
MIL Codes: These codes cause the computer to illuminate the MIL
when an emission related or driveability fault occurs. The MIL is also
known as the "service engine soon" or "check engine lamp". The
computer will illuminate the MIL when the engine is running and
remain in the vehicle's memory until the fault is repaired.
Pending Codes: These codes are also referred as "continuous
monitor" and "maturing codes". An intermittent fault will cause the
computer to store a code in memory. If the fault does not occur within
40 warm-up cycles, the code will be cleared from memory. If the
fault occurs a specific number of times, the code will mature into a
DTC and the MIL will turn on.
Changing any part without first isolating the circuit or system may
!
result in the replacement of good components.
Before performing this function, read and understand the Safety
!
Precautions and Section 2 - Tool Basics.
!
CAUTION! Avoid Cooling Fan! It May Turn On During Test.
Press the READ key to initiate the
Read Codes function. The
AutoScanner will retrieve the DTCs
stored in the vehicle's computer
module(s). This function can also be
run by selecting Read Codes from the Main Menu.
If a Link Error message displays, make sure the OBD II
!
connector is securely attached, and the ignition key is ON. Cycle
the ignition key to OFF for 10 seconds, then ON. This may be
required to reset the computer. If required, select "Yes" to try
again. If the problem still exists, refer to Section 4:
Troubleshooting.
3-2
Main Menu
1)Read Codes
Reading
* Data From Vehicle *
Using the Tool