Yamaha FZS6W 07 User Manual

FUEL INJECTION SYSTEM
8-40
Sensor operation tableEr-3
Data from the ECU cannot 
be received correctly.  Open or short circuit in communication line.
 Malfunction in meter unit.
 Malfunction in ECU.
—
Er-4 Non-registered data has 
been received from the 
meter.  Open or short circuit in communication line.
 Malfunction in meter unit.
 Malfunction in ECU.
—
Diag-
nostic  code  No. Item Meter display Checking method
01 Throttle angle
 Fully closed position 15–17 Check with throttle fully 
closed.
...

FUEL INJECTION SYSTEM
8-41
* If it is not possible to check the intake temperature, use the ambient temperature as reference (use 
the compared values for reference). 60
EEPROM fault code display
—
Not fault 00
 Fault detected 01 to 02 (Fault detection cyl-
inder)
01: #1 and #4
02: #2 and #3
 (If plural cylinders are defective, the display alter-
nates every two seconds.)
61 Malfunction history code 
display
—
 No history 00
 History exists 12-50 (Fault detection code)
 (If code numbers more than...

FUEL INJECTION SYSTEM
8-42
Actuator operation tableDiag-
nostic  code 
No. Item Actuation Checking method
30 Ignition coil #1/#4 Actuates the ignition coils #1, 
#4 for five times every sec-
ond.
Illuminates the engine trou-
ble warning light.Check the spark five times.
 Connect an ignition 
checker.
31 Ignition coil #2/#3 Actuates the ignition coils #2, 
#3 for five times every sec-
ond.
Illuminates the engine trou-
ble warning light.Check the spark five times.
 Connect an ignition 
checker.
36...

FUEL INJECTION SYSTEM
8-43
EAS27451
TROUBLESHOOTING DETAILS
This section describes the measures per fault code number displayed on the meter. Check and ser-
vice the items or components that are the probab le cause of the malfunction following the order 
given.
After the check and service of the malfunctioning part has been completed, reset the meter display 
according to the reinstatement method.
Fault code No.:
Code number displayed on the meter when the engine failed to work normally. Refer to...

FUEL INJECTION SYSTEM
8-44
2Open or short circuit in wire harness 
and/or sub lead.
 Repair or replace if there is an 
open or short circuit.
 Between intake air pressure 
sensor coupler and ECU cou-
pler
(Black/Blue–Black/Blue)
(Pink/White–Pink/White)
(Blue–Blue) Turning the 
main switch 
ON.
3 Defective intake air pressure sensor  Execute the diagnostic monitor-
ing mode. (Code No.03)
 Replace if defective. Refer to CHECKING THE 
INTAKE AIR PRESSURE SEN-
SOR on page 8-81.
Fault code No. 14 Symptom...

FUEL INJECTION SYSTEM
8-45
Fault code No. 15 Symptom Throttle position sensor-open or short circuit detected.
Diagnostic code No. 01 Throttle position sensor
Order Item/components and probable 
cause Check or maintenance job Reinstate-
ment method
1 Installed condition of throttle position 
sensor. Check the installed area for 
looseness or pinching.Turning the 
main switch 
ON.
2 Connected state of connector
 Throttle position sensor coupler
 Main wire harness ECU coupler
 Check the coupler for any...

FUEL INJECTION SYSTEM
8-46
Fault code No. 19 SymptomOpen circuit is detected in the input line from the side-
stand switch to the ECU.
Diagnostic code No. 20 Sidestand switch
Order Item/components and probable 
cause Check or maintenance job
Reinstate-
ment method
1 Connected state of connector
 Main wire harness ECU coupler (No. 
13 and 30 pin, black)
 Alarm coupler  Check the coupler for any pins 
that may have pulled out.
 Check the locking condition of 
the coupler.
 If there is a malfunction,...

FUEL INJECTION SYSTEM
8-47
Fault code No. 22 SymptomIntake air temperature sensor-open or short circuit 
detected.
Diagnostic code No. 05 Intake air temperature sensor
Order Item/components and probable 
cause Check or maintenance job
Reinstate-
ment method
1 Installed condition of intake air tem-
perature sensor Check the installed area for 
looseness or pinching.Turning the 
main switch 
ON.
2 Connected state of connector
 Intake air temperature sensor cou-
pler
 Main wire harness ECU coupler ...

FUEL INJECTION SYSTEM
8-48
Fault code No. 30 SymptomLatch up detected.
No normal signal is received from the lean angle sensor.
Diagnostic code No. 08 Lean angle sensor
Order Item/components and probable 
cause Check or maintenance job
Reinstate-
ment method
1 The vehicle has overturned. Raise the vehicle upright. Turning the  main switch ON 
(however, the 
engine cannot 
be restarted 
unless the 
main switch is 
first turned 
OFF).
2
Installed state of the lean angle sen-
sor. Check the installed...

FUEL INJECTION SYSTEM
8-49
Fault code No. 34 SymptomMalfunction detected in the primary wire of the ignition 
coil (#2/#3).
Diagnostic code No. 31 Ignition coil (#2/#3)
Order Item/components and probable 
cause Check or maintenance job
Reinstate-
ment method
1 Connected state of connector
 Ignition coil primary side coupler
(Gray/Black)
 Main wire harness ECU coupler  Check the coupler for any pins 
that may have pulled out.
 Check the locking condition of 
the coupler.
 If there is a malfunction,...