36
Scan Tool User Guide
Read Codes
6: Diagnostic Trouble Codes
Read Flash Codes
Use these steps if a vehicle requires that you read
diagnostic trouble codes by visually viewing them as
“flash codes”. In these steps, you identify the vehi-
cle’s “flash code” numbers and manually enter the
numbers into the scan tool to see their descriptions.
NOTE:
Flash codes are DTCs that you identify by:
1) grounding a pin on the vehicle’s check connector to trig-
ger a specific indictor light to blink, and then 2) viewing and
counting the number of times the indicator light blinks.
To read flash codes, follow these steps:
Figure 6.24: Diagnostic Menu Screen and Connector Location
Screen
1
From the Diagnostic Menu screen, select
Read
Codes
and press the
ENTER
key. This displays the
Connector Location screen (shown above).
NOTE:
If the Connector Location screen does not
appear, go to Step 4.
2
View the information and print it, if necessary. For
printing information, refer to
on
page 46
.
3
Press the
ENTER
key. This displays the DTC
Retrieval Procedure screen.
Figure 6.25: DTC Retrieval Procedure Screen
4
View the retrieval procedure and optionally print it. For
printing information, refer to
on
page 46
.
5
Use the connector location and DTC retrieval
procedure to read the flash codes from the vehicle.
6
When you know the codes, press the
ENTER
key on
the scan tool. This displays the Possible Codes
screen.
Figure 6.26: Possible Codes Screen
7
Use the Possible Codes screen to enter the flash
codes as follows:
a
Use the
Direction
keys to select (highlight) a
code number.
b
With the number selected, press the
ENTER
key.
c
Repeat steps a and b
until all the flash codes
are highlighted.
d
Press the
EXIT
key to display the code descrip-
tions on the Review Codes screen.
Figure 6.27: Review Codes Screen
8
View the list and optionally save or print it.
To view a saved file, refer to
Playback
on
page 75
.
For printing information, refer to
on
page 46
.
9
Press the
EXIT
key to return to the Diagnostic Menu
screen.
10
Clear the codes. Refer to
Clear Codes
on
page 38
.
Summary of Contents for Genisys EVO
Page 1: ...Genisys EVO User Guide...
Page 18: ...12 Scan Tool User Guide Software Descriptions 1 General Information Notes...
Page 58: ...52 Scan Tool User Guide NOTES...
Page 72: ...66 Scan Tool User Guide NOTES...
Page 74: ...68 Scan Tool User Guide NOTES...
Page 76: ...70 Scan Tool User Guide NOTES...
Page 88: ...82 Scan Tool User Guide NOTES...
Page 90: ...84 Scan Tool User Guide NOTES...
Page 92: ...2008 SPX Corporation All rights reserved 11 11 08 Part Number 551252...
