Actron 9640 - Manual (Page 128)

Import Enhanced (OBD II) Diagnostics
8 – 2 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
8
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.
Import Enhanced Read Codes reads DTC’s from modules.
Not all Import vehicles support DTC status. For a description of these screens,
refer to the Global OBDII section of the manual.
• History Codes — codes placed in the vehicle’s memory when the trouble
originally occurred, and will remain there even if the trouble has been cor-
rected. If no trouble after 50 engine warm-up cycles, the DTC will be erased.
• Current Codes — codes transmitted through the PCM’s data stream when
a trouble condition is active and cannot be erased. The problem must be
repaired to remove the DTC.
Select Read Codes and press ENTER.
The Scan Tool displays the DTCs or a message stating SYSTEM PASS: NO
CODES FOUND. Scroll down to view the DTCs or press the BACK key to return
to the Import Function List.
Use the UP/DOWN arrow keys to view the DTCs. Use the LEFT/RIGHT
arrow keys to toggle the DTC definition and status screen (if available.)
Press FUNC to return to the Import Function List.
P1800 Mod$12 1/18
TCM Power
Control Relay
Circuit Open B2725 Mod$10
Active Trnsfr Case
Mode Switch Malf
Import Function List?
1)I/M Readiness
` 2)Read Codes [
3)Pending Codes ~
System Pass:
No Faults Detected.
~
DTCs Found: 13
Use [ To View DTCs
Write Down Codes
For Reference ~