Yamaha YZF-R1B 2012 Service Manual page 515

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
EAS27721
SELF-DIAGNOSIS FAULT CODE INDICATION
When a system failure occurs, 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
Part
code
51 IMMOBILIZER
UNIT
52 IMMOBILIZER
UNIT
53 IMMOBILIZER
UNIT
54 IMMOBILIZER
UNIT
email: info@motomatrix.co.uk
Symptom
Code cannot be 1. Radio wave interfer-
transmitted between
the key and immobi-
lizer unit.
2. Immobilizer unit mal-
3. Key malfunction.
Codes between the 1. Signal received from
key and immobilizer
unit do not match.
2. Signal received from
Codes cannot be Noise interference or dis-
transmitted between connected lead/cable.
the ECU and the 1. Interference due to
immobilizer unit.
2. Disconnected com-
3. Immobilizer unit mal-
4. ECU malfunction.
Codes transmitted Noise interference or dis-
between the ECU connected lead/cable.
and the immobilizer 1. Interference due to
unit do not match.
2. Disconnected com-
3. Immobilizer unit mal-
4. ECU failure.
8-118
IMMOBILIZER SYSTEM
Cause
ence caused by
objects around the
keys and antennas.
function.
other transponder
(failed to recognize
code after ten con-
secutive attempts).
unregistered stan-
dard key.
radio wave noise.
munication harness.
function.
radio wave noise.
munication harness.
function.
(The ECU or immobi-
lizer unit was
replaced with a used
unit from another
vehicle.)
Action
1. Keep magnets,
metal objects,
and other immo-
bilizer system
keys away form
the keys and
antennas.
2. Replace the
main switch/
immobilizer unit.
3. Replace the key.
1. Place the immo-
bilizer unit at
least 50 mm
away from the
transponder of
other vehicles.
2. Register the
standard key.
1. Check the wire
harness and con-
nector.
2. Replace the
main switch/
immobilizer unit.
3. Replace the
ECU.
1. Register the
code re-register-
ing key.
2. Check the wire
harness and con-
nector.
3. Replace the
main switch/
immobilizer unit.
4. Replace the
ECU.