Yamaha YZF-R1 Series Service Manual page 554

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
DTC Item
Stepping motor:
C1003 open or short cir-
cuit detected.
Abnormality in-
C1007
side SCU
Abnormal rear
P0500
wheel sensor
Abnormal SCU
P0560 power supply volt-
age
Front wheel sen-
sor: no normal
signals are re-
P2158
ceived from the
front wheel sen-
sor.
Abnormal CAN
communication
U0100
(between ECU
and SCU)
Probable cause of
malfunction
• Defective connec-
tion of stepping mo-
tor and SCU
• ERS adjustments can-
couplers.
• Defective connec-
• The damping preset
tion of sub-wire har-
ness coupler.
• Short circuit in wire
harness or wire har-
ness continuity.
• Defective stepping
motor.
• Malfunction in SCU.
• ERS adjustments can-
• Malfunction in SCU.
• Open or short circuit
in wire harness be-
tween rear wheel
• ERS adjustments can-
sensor and ABS
unit.
• The damping preset
• Open or short circuit
in wire harness be-
tween ABS unit and
ECU.
• Defective rear
wheel sensor.
• Malfunction in ECU.
• Battery overcharg-
ing (defective rectifi-
er/regulator).
• Battery overcharg-
ing (broken or dis-
connected lead in
rectifier/regulator
• ERS adjustments can-
wire harness).
• Battery over-dis-
charging (broken or
disconnected lead
in charging system).
• Battery over-dis-
charging (defective
rectifier/regulator).
• Open or short circuit • ERS adjustments can-
in wire harness be-
tween front wheel • The damping preset
sensor and ECU.
• Defective front
wheel sensor.
• Malfunction in ECU.
• Defective connec-
• ERS adjustments can-
tion of wire harness,
ECU, and SCU cou-
• The damping preset
plers.
• Wire harness conti-
nuity.
• Malfunction in SCU.
• Malfunction in ECU.
9-57
Vehicle symptom Fail-safe system operation
not be performed.
value is fixed on the de-
fective side (front fork
or RCU) at the current
value (automatic set-
ting modes).
not be performed.
not be performed.
value is fixed at the
prescribed position
(automatic setting
modes).
not be performed.
not be performed.
value is fixed at the
prescribed position
(automatic setting
modes).
not be performed.
value is fixed at the
prescribed position
(automatic setting
modes).
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