Avital 4003 Installation Manual page 2

Bitwriter®, Code Hopping™, Doubleguard®, ESP™, FailSafe®, Ghost
Switch™, Learn Routine™, Nite-Lite®, Nuisance Prevention® Circuitry, Reveng-
er®, Silent Mode™, Soft Chirp®, Stinger®, Valet®, Vehicle Recovery System®,
VRS®, and Warn Away® are all Trademarks or Registered Trademarks of Di-
rected Electronics.
Bitwriters with a date code of 6a or older require an IC upgrade
(p/n 998M). Some Bitwriters with a date code of 6B do not
require the IC upgrade. Refer to tech tip # 1112 for more
information. Also required, the Bitwriter T-harness included in
the chip version 2.6 kit (998U).
The Bitwriter® (p/n 998U)
requires chip version 2.6 or
newer to program this unit.