Vortech GM 5.3L/6.2L Light Truck/SUV - 2007-2008 - Manual (Page 36)

P/N: 4GL020-018
©2008 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
11NOV08 GM Trk/H2(4GL..018v2.0)
26
15. REFLASH COMPUTER
Fig. 15-a
ESCAPE
ENTER
OR
SELECT
ARROWKEYS
NOTE: • All vehicles equipped with On-star that have aftermarket
stereos will experience problems with the ability to re-
program the vehicle’s ECM. It is necessary to disconnect
the aftermarket stereo from the factory wiring harness
before continuing with the programming procedure.
• Do not disturb the cable or turn the ignition off during this
time. If the programming is disrupted, the computer will
not start or run your vehicle!
IMPORTANT! To ensure trouble-free programming of your vehicle’s computer:
• Locate “exterior” fuse panel and remove Qty 1 INFO, Qty 1 RADIO and Qty 1RADIO AMP labeled fuses.
• Turn off all accessories and close doors to prevent unnecessary drain on the battery.
• Do not attempt to program your vehicle while a battery charger is connected.
• Improper battery voltage will result in failure of the programming process.
• Do not disconnect the cable or turn off the ignition during programming.
A. Reconnect the battery.
B. Locate the vehicle’s OBD2 connector located
in the lower left hand corner of the dash on the
driver’s side of the vehicle.
C. Attach the OBD2 connector from the Flash tool
that is provided in the kit to the vehicle’s OBD2
port. Make sure this connector is seated all the
way in the vehicle’s OBD2 port. You don’t want
this connector to disconnect during program-
ming or damage may occur to the vehicle’s
ECM.
D. The Reflash tool should power up and display
three parameters.
• Performance tune
• Diagnostics
• Options
E. Select “performance tune” and press the enter
button in the middle of the arrow keys.
F. Read the disclaimer entirely, then select agree
and press ENTER.
G. At this point please read the screen displayed
on the reflash tool. If you have any questions,
either refer to the manual that is provided with
the reflash tool or contact our service depart-
ment for futther assistance.
H. Turn the ignition on (do not start the vehicle).
Set the parking brake and press the ENTER
button to continue.
I. SELECT TUNE will be displayed at the top of
the screen. Use the arrow keys to select the
appropriate tune for your vehicle and press the
ENTER button. You will have a choice.
J. Continue to follow the screen and when finished
unplug the reflash tool form the vehicles OBD2
port.