Yamaha MTN1000 2016 Service Manual page 567

EAS30523
SELF-DIAGNOSIS FAULT CODE INDICATION
When a system failure occurs, the immobilizer system indicator light blinks. The pattern of blinking
shows the fault code.
Fault
Part
code
51 IMMOBILIZER
UNIT
52 IMMOBILIZER
UNIT
53 IMMOBILIZER
UNIT
54 IMMOBILIZER
UNIT
55 IMMOBILIZER
UNIT
Symptom
Code cannot be trans-
mitted between the
key and the immobi-
lizer unit.
Codes between the
key and immobilizer
unit do not match.
Codes cannot be
transmitted between
the ECU and the
immobilizer unit.
Codes transmitted
between the ECU and
the immobilizer unit do
not match.
Key code registration
malfunction.
8-150
IMMOBILIZER SYSTEM
Cause
1. Radio wave interfer-
ence caused by objects
around the keys and
antennas.
2. Immobilizer unit mal-
function.
3. Key malfunction.
1. Signal received from
other transponder
(failed to recognize
code after ten consecu-
tive attempts).
2. Signal received from
unregistered standard
key.
Noise interference or dis-
connected lead/cable.
1. Interference due to
radio wave noise.
2. Disconnected commu-
nication harness.
3. Immobilizer unit mal-
function.
4. ECU malfunction.
Noise interference or dis-
connected lead/cable.
1. Interference due to
radio wave noise.
2. Disconnected commu-
nication harness.
3. Immobilizer unit mal-
function.
4. ECU failure.
(The ECU or immobi-
lizer unit was replaced
with a used unit from
another vehicle.)
Same standard key was
attempted to be registered
two consecutive times.
Action
1. Keep magnets,
metal objects, and
other immobilizer
system keys away
from the keys and
antennas.
2. Replace the main
switch/immobi-
lizer unit.
3. Replace the key.
1. Place the immobi-
lizer unit at least
50 mm away from
the transponder of
other vehicles.
2. Register the stan-
dard key.
1. Check the wire
harness and con-
nector.
2. Replace the main
switch/immobi-
lizer unit.
3. Replace the ECU.
Refer to
"REPLACING
THE ECU (Engine
Control Unit)" on
page 8-194.
1. Register the code
re-registering key.
2. Check the wire
harness and con-
nector.
3. Replace the main
switch/immobi-
lizer unit.
4. Replace the ECU.
Refer to
"REPLACING
THE ECU (Engine
Control Unit)" on
page 8-194.
Register another
standard key.