Yamaha YZF-R1B 2012 Service Manual page 516

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
Fault
Part
code
55 IMMOBILIZER
UNIT
56 ECU
Immobilizer system indicator light fault code indication
Digit of 10 : Cycles of 1 sec. ON and 1.5 sec. OFF.
Digit of 1 : Cycles of 0.5 sec. ON and 0.5 sec. OFF.
Example: fault code 52
a. Light on
b. Light off
email: info@motomatrix.co.uk
Symptom
Key code registra- Same standard key was
tion malfunction. attempted to be regis-
tered two consecutive
times.
Undefinition code is Noise interference or dis-
received. connected lead/cable.
8-119
IMMOBILIZER SYSTEM
Cause
Register another
standard key.
1. Check the wire
harness and con-
nector.
2. Replace the
main switch/
immobilizer unit.
3. Replace the
ECU.
Action