SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
9-57
P1602
Malfunction in ECU
internal circuit (mal-
function of ECU pow-
er cut-off function).
• Open or short cir-
cuit in wire harness
between ECU and
battery.
• Open or short cir-
cuit in wire harness
between ECU and
main switch.
• Blown backup fuse.
• Malfunction in ECU.
Engine idling speed is
unstable.
Engine idling speed is
high.
Increased exhaust
emissions.
Engine is difficult to
start.
O
2
feedback learning
is not carried out.
O
2
feedback learning
value is not written.
P1806
P1807
[P1806] Shift sensor:
open or ground short
circuit detected.
[P1807] Shift sensor:
power short circuit de-
tected.
• Defective coupler
between shift sensor
and ECU.
• Open or power short
circuit in wire har-
ness between shift
sensor and ECU.
• Improperly installed
shift sensor.
• Defective shift sen-
sor.
• Malfunction in ECU.
Unable to carry out
QSS.
(If this abnormality oc-
curs during actual
shifting, the operation
will be carried out until
the process is com-
pleted.)
QSS is not carried
out.
P2122
P2123
P2127
P2128
P2138
[P2122] Accelerator
position sensor: open
or ground short cir-
cuit detected.
[P2123] Accelerator
position sensor: pow-
er short circuit detect-
ed.
[P2127] Accelerator
position sensor: open
or ground short cir-
cuit detected.
[P2128] Accelerator
position sensor: pow-
er short circuit detect-
ed.
[P2138] Deviation er-
ror
[P2122, P2127] Low
voltage of the acceler-
ator position sensor
circuit (0.25 V or less)
[P2123, P2128] High
voltage of the acceler-
ator position sensor
circuit (4.75 V or
more)
[P2138] Difference in
output voltage 1 and
output voltage 2 of the
accelerator position
sensor
• Defective coupler
between accelera-
tor position sensor
and ECU.
• Open or short cir-
cuit in wire harness
between accelera-
tor position sensor
and ECU.
• Improperly installed
accelerator position
sensor.
• Defective accelera-
tor position sensor.
• Malfunction in ECU.
Engine response is
poor.
Loss of engine power.
Engine idling speed is
unstable.
No change in acceler-
ator opening (tran-
sient control is not
carried out).
Accelerator opening is
fixed to 0[°].
O
2
feedback is not
carried out.
YCC-T evacuation is
activated.
Fuel cut is prohibited
by accelerator open-
ing.
Output is restricted.
ISC feedback is not
carried out.
ISC learning is not
carried out.
QSS is not carried
out.
DTC
Item
Probable cause of
malfunction
Vehicle symptom
Fail-safe system op-
eration
Summary of Contents for YZF-R1 2020
Page 1: ...2020 SERVICE MANUAL YZF R1 YZF R1M YZF1000L YZF1000 YZF1000DL YZF1000D B3L 28197 20 ...
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 88: ...CABLE ROUTING 2 49 Canister A E 1 2 3 4 5 6 B B B C D 7 8 9 10 E F G H E 7 10 11 ...
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 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 335: ...ELECTRIC STARTER 5 52 1 2 3 a b ...
Page 388: ...TRANSMISSION 5 105 ...
Page 406: ...WATER PUMP 6 17 ...
Page 433: ......
Page 439: ...IGNITION SYSTEM 8 6 ...
Page 447: ...CHARGING SYSTEM 8 14 ...
Page 451: ...LIGHTING SYSTEM 8 18 ...
Page 486: ...ELECTRICAL COMPONENTS 8 53 ...
Page 495: ......
Page 505: ...SYSTEM DIAGRAM 9 10 ...
Page 531: ...STEERING DAMPER SYSTEM 9 36 ...
Page 815: ...91_ABS 9 320 4 Defective hydraulic unit assembly Replace the hydraulic unit assembly ...
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Page 820: ......