FUEL INJECTION SYSTEM
8-53
Fault code No.
17
Symptom EXUP servo motor circuit: open or short circuit detected.
Diagnostic code No.
53
EXUP servo motor
Order Item/components and probable
cause
Check or maintenance job
Reinstatement
method
1
Connections
• EXUP servo motor coupler
• Main wire harness ECU coupler
• Check the couplers for any pins
that may be pulled out.
• Check the locking condition of
the couplers.
• If there is a malfunction, repair it
and connect the coupler se-
curely.
Reinstated au-
tomatically if a
normal signal is
received.
2
Open or short circuit in wire harness.
• Repair or replace if there is an
open or short circuit.
• Between EXUP servo motor
coupler and ECU coupler.
(blue–blue)
(white/red–white/red)
(black/blue–black/blue)
3
Defective EXUP servo motor (potenti-
ometer circuit).
• Execute the diagnostic mode.
(Code No. 53)
• Replace if defective.
Fault code No.
18
Symptom EXUP servo motor is stuck.
Diagnostic code No.
53
EXUP servo motor
Order Item/components and probable
cause
Check or maintenance job
Reinstatement
method
1
Connections
• EXUP servo motor coupler
• Main wire harness ECU coupler
• Check the couplers for any pins
that may be pulled out.
• Check the locking condition of
the couplers.
• If there is a malfunction, repair it
and connect the coupler se-
curely.
Turning the
main switch to
“ON”.
It takes 3 sec-
onds at the
maximum be-
fore the origi-
nal state
returns.
2
Open or short circuit in wire harness.
• Repair or replace if there is an
open or short circuit.
• Between EXUP servo motor
coupler and ECU coupler.
(black/green–black/green)
(black/red–black/red)
3
Defective EXUP servo motor.
• Execute the diagnostic mode.
(Code No. 53)
• Replace if defective.
4
Defective EXUP valve, pulley, and ca-
bles.
Replace if defective.
Summary of Contents for YZFR6V
Page 1: ...SERVICE MANUAL YZFR6V C LIT 11616 19 78 2C0 28197 10 ...
Page 57: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 31 EAS20410 LUBRICATION DIAGRAMS 1 2 3 4 ...
Page 59: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 33 1 2 3 4 8 7 6 5 ...
Page 61: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 35 1 2 3 4 5 ...
Page 63: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 37 1 5 4 3 2 ...
Page 65: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 39 3 1 2 5 4 ...
Page 67: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 41 1 3 2 ...
Page 68: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 42 1 Oil pipe 2 Main axle 3 Drive axle ...
Page 69: ...COOLING SYSTEM DIAGRAMS 2 43 EAS20420 COOLING SYSTEM DIAGRAMS 1 2 3 4 ...
Page 71: ...COOLING SYSTEM DIAGRAMS 2 45 A A 2 1 3 4 5 6 7 8 6 13 8 9 15 14 9 10 11 12 ...
Page 81: ...CABLE ROUTING 2 55 A 3 1 2 3 C B ...
Page 83: ...CABLE ROUTING 2 57 4 5 7 8 9 11 13 14 12 10 15 16 11 16 6 A C E B D 5 6 10 12 16 1 2 3 ...
Page 200: ...CHAIN DRIVE 4 73 1 2 3 a a New ...
Page 235: ...PICKUP ROTOR 5 32 ...
Page 309: ...AIR INDUCTION SYSTEM 7 15 EAS27040 AIR INDUCTION SYSTEM 2 1 2 4 3 4 3 6 4 5 A A ...
Page 388: ...ELECTRICAL COMPONENTS 8 79 1 5 4 3 2 6 7 8 9 10 12 13 11 14 15 16 17 ...
Page 419: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...