Immobilizer System - Yamaha XJR1300 2007 Service Manual

EAS5UXB016

IMMOBILIZER SYSTEM

To help prevent theft, the XJR1300 is equipped with an "immobilizer system" that electronically pre-
vents engine starting.
The key has a built-in microchip transponder that disables illegal duplicate keys by dual checking of
code between key and immobilizer unit and between immobilizer unit and ECU, thereby improving se-
curity.
After turning the main switch "ON" the ECU checks the unique key identification code and random code
through the immobilizer unit. The immobilizer unit and ECU computation results are checked with the
2 codes, and if the key is recognized as legal, the ECU releases ignition control (cutoff) and the engine
can start.
With a copy key with only identical key grooves, code verification does not proceed correctly, the ECU
fails to release ignition control and the engine cannot start.
NOTE:
While the code is being verified after the main switch is turned "ON" the immobilizer warning light is lit.
Wait until the immobilizer warning light goes off before starting the engine.
a. Recognizing electronic codes
b. Sub key (black)
c. Transponder
d. Antenna
e. Immobilizer unit
f. Ignition control
g. Cut off
h. ECU
a
a
g
h
1-4
FEATURES
b
c
d
e
f