Yamaha YZFR1W 2007 Service Manual page 394

4 Check the entire immobilizer sys-
tem wiring.
Refer to "IMMOBILIZER SYSTEM"
on page 8-69.
OK↓
• Check the condition of the each
immobilizer system circuits.
• Refer to "SELF-DIAGNOSIS FAULT
CODE INDICATION" on page 8-75.
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
NG→
Symptom Cause
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 commu-
3 Immobilizer unit mal-
4 ECU malfunction.
8-75
IMMOBILIZER SYSTEM
Properly connect or repair the immobi-
lizer system wiring.
ence caused by
objects around the
keys and antennas.
function.
other transponder
(failed to recognize
code after ten consec-
utive attempts).
unregistered standard
key.
radio wave noise.
nication harness.
function.
Action
1 Keep magnets,
metal objects, and
other immobilizer
system keys away
form 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.