Yamaha XJR1300 2007, Service Manual

Page: 353 / 386

IMMOBILIZER SYSTEM
7-76
EAS27721
SELF-DIAGNOSIS FAULT CODE INDICATION
When a system failure occurrs, the error code number is indicated in the LCD display of meter and the
immobilizer system indicator light blinks at the same time. The pattern of blinking also shows the error
code.
Fault
code
Part Symptom Cause Action
51 IMMOBILIZER
UNIT Code cannot be
transmitted between
the key and immobi-
lizer unit.
●
Radio wave interfer-
ence caused by
objects around the
keys and antennas.
●
Immobilizer unit mal-
function.
●
Key malfunction.
●
Keep magnets,
metal objects,
and other immobi-
lizer system keys
away form the
keys and anten-
nas.
●
Replace the main
switch/immobi-
lizer unit.
●
Replace the key.
52 IMMOBILIZER
UNIT Codes between the
key and immobilizer
unit do not match.
●
Signal received from
other transponder
(failed to recognize
code after ten consec-
utive attempts).
●
Signal received from
unregistered standard
key.
●
Place the immobi-
lizer unit at least
50 mm away from
the transponder
of other vehicles.
●
Register the stan-
dard key.
53 IMMOBILIZER
UNIT Codes cannot be
transmitted between
the ECU and the
immobilizer unit.
●
Noise interference or
disconnected lead/
cable.
●
Interference due to
radio wave noise.
●
Disconnected commu-
nication harness.
●
Immobilizer unit mal-
function.
●
ECU malfunction.
●
Check the wire
harness and con-
nector.
●
Replace the main
switch/immobi-
lizer unit.
●
Replace the ECU.
54 IMMOBILIZER
UNIT Codes transmitted
between the ECU
and the immobilizer
unit do not match.
●
Noise interference or
disconnected lead/
cable.
●
Interference due to
radio wave noise.
●
Disconnected commu-
nication harness.
●
Immobilizer unit mal-
function.
●
ECU failure.
●
(The ECU or immobi-
lizer unit was replaced
with a used unit from
another vehicle.)
●
Register the code
re-registering key.
●
Check the wire
harness and con-
nector.
●
Replace the main
switch/immobi-
lizer unit.
●
Replace the ECU.