Immobilizer System Indicator Light Fault Code Indication - Yamaha YZF-R1(B) 2012 Service Manual

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
Symptom
Key code registra-
tion malfunction.
Undefinition code is
received.
8-119
IMMOBILIZER SYSTEM
Cause
Same standard key was
attempted to be regis-
tered two consecutive
times.
Noise interference or dis-
connected lead/cable.
Action
Register another
standard key.
1. Check the wire
harness and con-
nector.
2. Replace the
main switch/
immobilizer unit.
3. Replace the
ECU.