SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
9-51
P21CF
P21D0
P21D1
P21D2
[P21CF] Secondary
injector #1: malfunc-
tion in secondary in-
jector #1.
[P21D0] Secondary
injector #2: malfunc-
tion in secondary in-
jector #2.
[P21D1] Secondary
injector #3: malfunc-
tion in secondary in-
jector #3.
[P21D2] Secondary
injector #4: malfunc-
tion in secondary in-
jector #4.
• Defective coupler
between secondary
injector and ECU.
• Open or short cir-
cuit in wire harness
between secondary
injector and ECU.
• Defective second-
ary injector.
• Malfunction in ECU.
• Improperly installed
secondary injector.
Loss of engine power.
O
2
feedback is not
carried out.
Air induction system
solenoid is turned on
all the time (air induc-
tion system air cut
off).
ISC feedback is not
carried out.
ISC learning is not
carried out.
Injection to the appli-
cable cylinder group
(cylinders #1 and #2
or cylinders #3 and
#4) is cut off.
QSS is not carried
out.
P2228
P2229
[P2228] Atmospheric
pressure sensor:
ground short circuit
detected.
[P2229] Atmospheric
pressure sensor:
open or power short
circuit detected.
[P2228] Low voltage
of the atmospheric
pressure sensor cir-
cuit (0.5 V or less)
[P2229] High voltage
of the atmospheric
pressure sensor cir-
cuit (4.8 V or more)
• Defective coupler
between atmospher-
ic pressure sensor
and ECU.
• Open or short cir-
cuit in wire harness
between atmospher-
ic pressure sensor
and ECU.
• Improperly installed
atmospheric pres-
sure sensor.
• Defective atmo-
spheric pressure
sensor.
• Malfunction in ECU.
Engine is difficult to
start.
Increased exhaust
emissions.
Insufficient power at
high altitudes.
Engine idling speed is
unstable.
α
–N is fixed.
Intake air pressure
difference is fixed to 0
[kPa].
Atmospheric pres-
sure is fixed to 101.3
[kPa].
Atmospheric pres-
sure sensor output
correction value is
fixed to 0.
Fuel is not cut off due
to the intake air pres-
sure difference.
O
2
feedback is not
carried out.
ISC feedback is not
carried out.
ISC learning is not
carried out.
QSS is not carried
out.
U0125
Signals cannot be
transmitted between
the ECU and the IMU.
• Defective IMU cou-
pler or ECU coupler.
• Open or short cir-
cuit in wire harness
between IMU and
ECU.
• Malfunction in IMU.
• Malfunction in ECU.
Engine cannot be
started.
Engine cannot be
started.
DTC
Item
Probable cause of
malfunction
Vehicle symptom
Fail-safe system op-
eration
Summary of Contents for YZF-R1
Page 2: ......
Page 6: ......
Page 8: ......
Page 38: ...SPECIAL TOOLS 1 29 ...
Page 55: ...TIGHTENING TORQUES 2 16 ...
Page 60: ...CABLE ROUTING 2 21 Frame rear right side view B A C D 2 1 2 3 4 5 6 7 ...
Page 82: ...CABLE ROUTING 2 43 Front brake hose left side view A 1 1 1 1 2 2 2 3 3 3 4 4 4 3 4 ...
Page 86: ...CABLE ROUTING 2 47 Fuel tank top and left side view A B 1 2 3 4 5 2 5 ...
Page 92: ...CABLE ROUTING 2 53 Air cut off valve right side view A B C C D E 1 2 2 3 3 3 4 4 5 5 5 6 7 ...
Page 100: ...CABLE ROUTING 2 61 Muffler top and left side view 1 1 2 3 3 4 5 5 6 6 4 4 5 6 5 6 A ...
Page 104: ...CABLE ROUTING 2 65 ...
Page 107: ......
Page 144: ...PERIODIC MAINTENANCE 3 37 ...
Page 149: ......
Page 171: ...GENERAL CHASSIS 5 4 22 T R Front muffler protector bolt 7 N m 0 7 kgf m 5 2 lb ft b b a a 1 ...
Page 280: ...CHAIN DRIVE 4 131 ...
Page 336: ...ELECTRIC STARTER 5 53 1 2 3 a b ...
Page 406: ...WATER PUMP 6 17 ...
Page 432: ...AIR INDUCTION SYSTEM 7 25 ...
Page 435: ......
Page 441: ...IGNITION SYSTEM 8 6 ...
Page 449: ...CHARGING SYSTEM 8 14 ...
Page 453: ...LIGHTING SYSTEM 8 18 ...
Page 488: ...ELECTRICAL COMPONENTS 8 53 ...
Page 497: ......
Page 507: ...SYSTEM DIAGRAM 9 10 ...
Page 525: ...STEERING DAMPER SYSTEM 9 28 ...
Page 800: ...91_ABS 9 303 4 Defective hydraulic unit assembly Replace the hydraulic unit assembly ...
Page 801: ...91_ABS 9 304 ...
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