Yamaha 2007 R6 Service

FUEL INJECTION SYSTEM
8-58
Fault code No. 33 Symptom Open circuit detected in the primary lead of the cylinder-
#1 ignition coil.
Diagnostic code No. 30 Cylinder-#1 ignition coil
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Connections
•Cylinder-#1 ignition coil coupler
•Main wire harness ECU coupler
•Sub-wire harness 1 coupler•Check the couplers for any pins 
that may be pulled out.
•Check the locking condition of 
the couplers.
•If there is a malfunction,...

FUEL INJECTION SYSTEM
8-59
Fault code No. 35 Symptom Open circuit detected in the primary lead of the cylinder-
#3 ignition coil.
Diagnostic code No. 32 Cylinder-#3 ignition coil
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Connections
•Cylinder-#3 ignition coil coupler
•Main wire harness ECU coupler
•Sub-wire harness 1 coupler•Check the couplers for any pins 
that may be pulled out.
•Check the locking condition of 
the couplers.
•If there is a malfunction,...

FUEL INJECTION SYSTEM
8-60
Fault code No. 36 Symptom Open circuit detected in the primary lead of the cylinder-
#4 ignition coil.
Diagnostic code No. 33 Cylinder-#4 ignition coil
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Connections
•Cylinder-#4 ignition coil coupler
•Main wire harness ECU coupler
•Sub-wire harness 1 coupler•Check the couplers for any pins 
that may be pulled out.
•Check the locking condition of 
the couplers.
•If there is a malfunction,...

FUEL INJECTION SYSTEM
8-61
Fault code No. 39 Symptom Open circuit detected in a primary injector.
Diagnostic code No. 36
37
38
39Primary injector #1
Primary injector #2
Primary injector #3
Primary injector #4
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Connections
•Primary injector coupler
•Main wire harness ECU coupler
•Sub-wire harness 2 coupler•Check the couplers for any pins 
that may be pulled out.
•Check the locking condition of 
the couplers.
•If there...

FUEL INJECTION SYSTEM
8-62
Fault code No. 40 Symptom Open circuit detected in a secondary injector.
Diagnostic code No. 40
41
42
43Secondary injector #1
Secondary injector #2
Secondary injector #3
Secondary injector #4
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Connections
•Secondary injector coupler
•Main wire harness ECU coupler
•Sub-wire harness 2 coupler•Check the couplers for any pins 
that may be pulled out.
•Check the locking condition of 
the...

FUEL INJECTION SYSTEM
8-63
Fault code No. 41 Symptom Lean angle sensor: open or short circuit detected.
Diagnostic code No. 08 Lean angle sensor
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Connections
•Lean angle sensor 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...

FUEL INJECTION SYSTEM
8-64
Fault code No. 42 Symptom A. No normal signals are received from the speed sensor.
B. Open circuit is detected in the neutral switch.
Diagnostic code No. A 07 Speed sensor
B 21 Neutral switch
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
A-1 Installed state of speed sensor. Check for looseness or pinching. Starting the en-
gine, and acti-
vating the 
speed sensor 
by operating 
the vehicle. A-2 Connections
•Speed sensor coupler
•Main...

FUEL INJECTION SYSTEM
8-65
Fault code No. 42 Symptom A. No normal signals are received from the speed sensor.
B. Open circuit is detected in the neutral switch.
Diagnostic code No. A 07 Speed sensor
B 21 Neutral switch
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
B-1 Installed state of neutral switch. Check for looseness or pinching. Starting the en-
gine, and acti-
vating the 
speed sensor 
by operating 
the vehicle. B-2 Connections
•Neutral switch coupler...

FUEL INJECTION SYSTEM
8-66
Fault code No. 43 Symptom Power supply to the injectors and fuel pump is not nor-
mal.
Diagnostic code No. 09 Fuel system voltage (battery voltage)
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Connections
•Relay unit coupler (fuel pump relay)
•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...

FUEL INJECTION SYSTEM
8-67
Fault code No. 44 Symptom An error is detected while reading or writing on EEPROM 
(CO adjustment value).
Diagnostic code No. 60 EEPROM fault cylinder No.
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Malfunction in ECU.•Set the faulty cylinder’s exhaust 
gas volume.
1. Execute the diagnostic mode 
(Code No. 60) to check the 
faulty cylinder number. (If 
multiple cylinders are defec-
tive, the numbers of the 
faulty cylinders are...