Vortech 1999-2006 4.8L/5.3L/6.0L Light Truck/SUV User Manual

Page 27

P/N: 4GL020-010

08OCT08 v5.0(99-07 GM Trk (4GLv5.0))

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 diconnect the after-

market stereo from the facotry 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

distrupted, the computer will not start or run

your vehicle!

D. Turn the ignition key to the “on” or “run” position

but do not start the vehicle.

E. To begin programming your vehicle, you may

either press the YES button or the A button. If

you press the YES button on the hand-held unit,

this will download the Superchips performance

program already stored in the hand-held unit. If

you press “A”, you can alter some pre‑defined

options to suit your needs. These options are not

permanently stored in the hand-held unit. When

power is removed from the unit, the changes

you made will be lost.

F. You only need to press the YES button once

to start the programming cycle. The program-

ming process take 1 minute and 15 seconds to

complete.

G. The hand-held unit will inform you that the pro-

gramming process has completed and to turn

the ignition off and disconnect the cable. Only

at this time should the ignition be turned off and

the cable removed.

H. Programming is now completed. Start the vehicle

to ensure proper operation.

A. Reconnect the battery.

B. Connect the supplied cable to the 9-pin connec-

tor at the top of the hand-held unit. If present

use the thumbscrews to secure the cable to the

connector.

C. Connect the other end to your ALDL connector

located under the dash near the steering col-

umn. Make sure this connection is seated all

the way in and that it is secure. You do not want

this cable coming out of the connector during

programming.

14.A REFLASH COMPUTER, SUPERCHIPS EQUIPPED KITS

2002 4.8L / 2000-2002 5.3L / 2003 6.0L MODELS OnLY

IMPORTANT! To ensure trouble-free programming of your vehicle’s computer:

• Make sure the vehicle’s battery is sufficiently charged.

• 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.

• Vehicles equipped with “On‑Star”, please refer to the “On‑Star” notice in Section 15.