Haltech IG5 - Manual (Page 21)

17
CHAPTER 2 GETTING ONLINE
Now that your Haltech IG5 is installed with all the sensors in place the system can be
connected to the programming computer. This will allow the readings from all the sensors to
be displayed on the screen and checked for correct operation.
To connect the PC to the Haltech IG5 ECU you will need the programming cable and
programming disk supplied.
2.1 Connecting the Haltech IG5 to a Computer
The programming cable supplied with the Haltech IG5 is a standard serial link extension
cable. One end of the cable will plug into the Main Harness PC Interface connector (near the
main connector). The other end should plug into the mating connector at the back of your
computer. The plug on the computer may be marked "Serial", "Mouse" or "COM". Almost
all laptops will have this plug. If there is no 9 pin plug which it will connect to, check to see
if there is a 25 pin D-type plug available (some desk top computers will have this). If this is
the case, an appropriate cable can be supplied on request. Alternatively, most electronic
retailers will have a 25-pin to 9-pin converter.
Any time you wish to communicate with the IG5 ECU it needs to be supplied with power.
This usually involves just turning on the ignition switch. If at any stage power is not on, or
the programming cable is disconnected while attempting to communicate, the programming
software will display the message RECONNECT HALTECH. To rectify this, reconnect
power and/or the programming cable.
2.2 Operating the Software
2.2.1 Computer Requirements
The computer required to program the Haltech IG5 can be any IBM compatible personal
computer from the XT onwards (ie. the AT, 386, 486 or Pentium computers). The
requirements are fairly modest. The computer must have at least 640K of RAM (with about
615kb free for executable programs), one 3.5" disk drive and a CGA, EGA, or VGA screen.
(Virtually all reasonably modern laptops running MS-DOS (version 5.00 or higher) will fit
this description).