Yamaha 2007 R6 Service
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FUEL INJECTION SYSTEM 8-38 Communication error with the meter39Primary injector (open circuit)Primary injector: open circuit detected.Able (depending on the number of faulty cylin- ders)Able (depending on the number of faulty cylin- ders) 40Secondary injector (open circuit)Secondary injector: open circuit detected.Able (depending on the number of faulty cylin- ders)Able (depending on the number of faulty cylin- ders) 41Lean angle sensor (open or short-circuit)Lean angle sensor: open or short circuit detected.Unable Unable 42Speed sensorNo normal signals are received from the speed sensor. Able Able Neutral switchNeutral switch: open or short circuit detected. 43Fuel system voltage (monitoring voltage)Power supply to the injectors and the fuel pump is not normal.Able Able 44Error in writing the amount of CO adjust- ment on EEPROMAn error is detected while reading or writing on EEPROM (CO ad- justment value).Able Able 46Vehicle system power supply (monitoring voltage)Power supply is not normal. Able Able 50ECU internal malfunc- tionECU memory is faulty. (When this malfunction is detected in the ECU, the fault code number might not appear on the meter.)Able/Un- ableAble/Un- able 59Throttle position sen- sor (for throttle cable pulley) (open or short cir- cuit/loose connection)Throttle position sensor (for throt- tle cable pulley): open or short circuit detected. Throttle position sensor (for throt- tle cable pulley) coupler connec- tion is loose.Able/Un- ableAble/Un- able 60 Throttle servo motorThrottle servo motor: open or short circuit detected. Motor is defective or ECU internal malfunction.Able/Un- ableAble/Un- able Fault code No.Item SymptomAble/un- able to startAble/un- able to drive Fault code No.Item SymptomAble/un- able to startAble/un- able to drive Er-1ECU internal malfunc- tion (output signal error)No signals are received from the ECU.Unable Unable
FUEL INJECTION SYSTEM
8-39
EAS27400
TROUBLESHOOTING METHOD
The engine operation is not normal and the
engine trouble warning light comes on.
1. Check:
•Fault code number
a. Check the fault code number displayed on
the meter.
b. Identify the faulty system with the fault code.
Refer to “Self-Diagnostic Function table”.
c. Identify the probable cause of the malfunc-
tion. Refer to “Fault code table”.
2. Check and repair the probable cause of mal-
function.
3. Perform Fuel injection system reinstatement
action.
Refer to “Reinstatement method” of table in
“TROUBLESHOOTING DETAILS”.4. Turn the main switch to “OFF” and back to
“ON”, then check that no fault code number is
displayed.
NOTE:
If fault codes are displayed, repeat steps (1) to
(4) until no fault code number is displayed.
5. Erase the malfunction history in the diagnos-
tic mode. Refer to “Sensor operation table
(Diagnostic code No. 62)”.
NOTE:
Turning the main switch to “OFF” will not erase
the malfunction history.
The engine operation is not normal but the
engine trouble warning light does not come
on.
1. Check the operation of following sensors and
actuators in the Diagnostic mode. Refer to
“Sensor operation table” and “Actuator oper-
ation table”.
If a malfunction is detected in the sensors or
actuators, repair or replace all faulty parts.
If no malfunction is detected in the sensors
and actuators, check and repair inner parts of
the engine. Er-2ECU internal malfunc-
tion
(output signal error)No signals are received from the
ECU within the specified duration.Unable Unable
Er-3ECU internal malfunc-
tion
(output signal error)Data from the ECU cannot be re-
ceived correctly.Unable Unable
Er-4ECU internal malfunc-
tion
(input signal error)Non-registered data has been re-
ceived from the meter.Unable Unable Fault
code No.Item SymptomAble/un-
able to startAble/un-
able to
drive
Fault code No. No fault code No.
Check and repair.
Refer to “TROUBLE-
SHOOTING DE-
TA I L S” on page 8-48.
Monitor the opera-
tion of the sensors
and actuators in the
diagnostic mode. Re-
fer to “Sensor opera-
tion table” and
“Actuator operation
table”.Check and repair.
01: Throttle position sensor (for throttle
valves) signal 1 (throttle angle)
13: Throttle position sensor (for throttle
valves) signal 2 (throttle angle)
14: Throttle position sensor (for throttle cable
pulley) signal 1 (throttle angle)
15: Throttle position sensor (for throttle cable
pulley) signal 2 (throttle angle)
48: Air induction system solenoid
FUEL INJECTION SYSTEM 8-40 EAS27420 DIAGNOSTIC MODE Setting the diagnostic mode 1. Turn the main switch to “OFF”. 2. Disconnect the wire harness coupler from the fuel pump. 3. Press and hold the “SELECT” and “RESET” buttons, turn the main switch to “ON”, and continue to press the buttons for 8 seconds or more. NOTE: •All displays on the meter disappear except the odometer/trip meter/fuel reserve trip meter/stopwatch display. •“dIAG” appears on the odometer/trip meter/fuel reserve trip meter/stopwatch LCD. 4. Press the “SELECT” button to select the diagnostic mode “dIAG”. 5. After selecting “dIAG”, simultaneously press the “SELECT” and “RESET” buttons for 2 seconds or more to activate the diagnostic mode. The diagnostic code number “d01” appears on the clock LCD. 6. Select the diagnostic code number corresponding to the fault code number by pressing the “SE- LECT” and “RESET” buttons. NOTE: •To decrease the selected diagnostic code number, press the “RESET” button. Press the “RESET” button for 1 second or longer to automatically decrease the diagnostic code numbers. •To increase the selected diagnostic code number, press the “SELECT” button. Press the “SELECT” button for 1 second or longer to automatically increase the diagnostic code numbers. 7. Verify the operation of the sensor or actuator. •Sensor operation The data representing the operating conditions of the sensor appears on the odometer/trip meter/fu- el reserve trip meter/stopwatch LCD. •Actuator operation Set the engine stop switch to “” to operate the actuator. NOTE: If the engine stop switch is set to “”, set it to “”, and then set it to “” again. 8. Turn the main switch to “OFF” to cancel the diagnostic mode. “SELECT” “RESET” d01” “d01d70” “d70
FUEL INJECTION SYSTEM 8-41 Fault code table Fault code No.Symptom Probable cause of malfunctionDiagnostic code No. 11No normal signals are re- ceived from the cylinder identification sensor when the engine is started or while the vehicle is being driven.•Open or short circuit in sub-wire-harness 1. •Open or short circuit in wire harness. •Defective cylinder identification sensor. •Malfunction in ECU. •Improperly installed sensor.— 12No normal signals are re- ceived from the crankshaft position sensor.•Open or short circuit in wire harness. •Defective crankshaft position sensor. •Malfunction in pickup rotor. •Malfunction in ECU. •Improperly installed sensor.— 13Intake air pressure sensor: open or short circuit detect- ed.•Open or short circuit in wire harness. •Defective intake air pressure sensor. •Malfunction in ECU.03 14Intake air pressure sensor: hose system malfunction (clogged or detached hose).•Intake air pressure sensor hose is de- tached, clogged, kinked, or pinched. •Malfunction in ECU.03 15Throttle position sensor (for throttle valves): open or short circuit detected. Throttle position sensor (for throttle valves) coupler con- nection is loose.•Open or short circuit in wire harness. •Defective throttle position sensor (for throt- tle valves). •Malfunction in ECU. •Improperly installed throttle position sensor (for throttle valves).01 13 17EXUP servo motor circuit: open or short circuit detect- ed or loose connection.•Open or short circuit in wire harness. •Defective EXUP servo motor (potentiome- ter circuit).53 18 EXUP servo motor is stuck.•Open or short circuit in wire harness. •Stuck EXUP servo motor (mechanism). •Stuck EXUP servo motor (motor).53 19Open circuit is detected in the input lead from the sid- estand switch to the ECU.•Open or short circuit in wire harness. •Malfunction in ECU. •Relay unit (diode)20 20When the main switch is turned to “ON”, the atmo- spheric pressure sensor voltage and intake air pres- sure sensor voltage differ greatly.•Atmospheric pressure sensor hose is clogged. •Intake air pressure sensor hose is clogged, kinked, or pinched. •Malfunction of the atmospheric pressure sensor in the intermediate electrical poten- tial. •Malfunction of the intake air pressure sen- sor in the intermediate electrical potential. •Malfunction in ECU.03 02 21Coolant temperature sen- sor: open or short circuit detected.•Open or short circuit in wire harness. •Defective coolant temperature sensor. •Malfunction in ECU. •Improperly installed coolant temperature sensor.06
FUEL INJECTION SYSTEM 8-42 22Air temperature sensor: open or short circuit detect- ed.•Open or short circuit in wire harness. •Defective air temperature sensor. •Malfunction in ECU. •Improperly installed air temperature sensor.05 23Atmospheric pressure sen- sor: open or short circuit detected.•Open or short circuit in wire harness. •Defective atmospheric pressure sensor. •Improperly installed atmospheric pressure sensor. •Malfunction in ECU.02 24No normal signal is re- ceived from the O 2 sensor.•Open or short circuit in wire harness. •Defective O 2 sensor. •Malfunction in ECU. •Improperly installed O 2 sensor.— 30Latch up detected. No normal signal is re- ceived from the lean angle sensor.•The vehicle has overturned. •Defective lean angle sensor. •Malfunction in ECU. •Improperly installed lean angle sensor.08 33Open circuit detected in the primary lead of the cylin- der-#1 ignition coil.•Open circuit in wire harness. •Malfunction in ignition coil. •Malfunction in ECU.30 34Open circuit detected in the primary lead of the cylin- der-#2 ignition coil.•Open circuit in wire harness. •Malfunction in ignition coil. •Malfunction in ECU.31 35Open circuit detected in the primary lead of the cylin- der-#3 ignition coil.•Open circuit in wire harness. •Malfunction in ignition coil. •Malfunction in ECU.32 36Open circuit detected in the primary lead of the cylin- der-#4 ignition coil.•Open circuit in wire harness. •Malfunction in ignition coil. •Malfunction in ECU.33 39Open circuit detected in a primary injector.•Open or short circuit in wire harness. •Defective primary injector. •Malfunction in ECU. •Improperly installed primary injector.36 37 38 39 40Open circuit detected in a secondary injector.•Open or short circuit in wire harness. •Defective secondary injector. •Malfunction in ECU. •Improperly installed secondary injector.40 41 42 43 41Lean angle sensor: open or short circuit detect- ed.•Open or short circuit in wire harness. •Defective lean angle sensor. •Malfunction in ECU.08 42No normal signals are re- ceived from the speed sen- sor.•Open circuit in wire harness. •Malfunction in speed sensor. •Malfunction in ECU.07 Neutral switch: open or short circuit detect- ed.•Open circuit in wire harness. •Malfunction in neutral switch. •Malfunction in ECU.21 Fault code No.Symptom Probable cause of malfunctionDiagnostic code No.
FUEL INJECTION SYSTEM 8-43 43Power supply to the injec- tors and the fuel pump is not normal.•Open or short circuit in wire harness. •Malfunction in ECU.09 44An error is detected while reading or writing on EE- PROM (CO adjustment val- ue).•Malfunction in ECU. (The CO adjustment value is not properly written on or read from the internal memo- ry).60 46 Power supply is not normal.•Malfunction in the charging system. Refer to “CHARGING SYSTEM” on page 8-13.— 50Faulty ECU memory. (When this malfunction is detected in the ECU, the fault code number might not appear on the meter.)•Malfunction in ECU. (The program and data are not properly written on or read from the internal memo- ry.)— 59Throttle position sensor (for throttle cable pulley): open or short circuit detect- ed. Throttle position sensor (for throttle cable pulley) cou- pler connection is loose.•Open or short circuit in wire harness. •Defective throttle position sensor. •Improperly installed throttle position sensor. •Malfunction in ECU.14 15 60Throttle servo motor: open or short circuit detect- ed. Defective throttle servo mo- tor. Malfunction in ECU (servo motor driving system).•Open or short circuit in wire harness. •Defective throttle servo motor (potentiome- ter circuit). •Stuck throttle servo motor (mechanism). •Stuck throttle servo motor (motor). •Malfunction in ECU.01 Er-1No signals are received from the ECU.•Open or short circuit in wire harness. •Malfunction in meter. •Malfunction in ECU. •Defective wire connection of the ECU cou- pler.— Er-2No signals are received from the ECU within the specified duration.•Improper connection in wire harness. •Malfunction in meter. •Malfunction in ECU.— Er-3Data from the ECU cannot be received correctly.•Improper connection in wire harness. •Malfunction in meter. •Malfunction in ECU.— Er-4Non-registered data has been received from the meter.•Improper connection in wire harness. •Malfunction in meter. •Malfunction in ECU.— Fault code No.Symptom Probable cause of malfunctionDiagnostic code No.
FUEL INJECTION SYSTEM 8-44 Sensor operation table Diag- nostic code No.Item Meter display Checking method 01 Throttle position sensor (for throttle valves) signal 1 •Fully closed position 12–21 Check with throttle valves fully closed. •Fully opened position 97–106 Check with throttle valves fully opened. 02 Atmospheric pressure Displays the atmospheric pressure.Compare the actually mea- sured atmospheric pres- sure with the meter display value. 03 Intake air pressure Displays intake air pressure. Compare the actually mea- sured atmospheric pres- sure with the meter display value without cranking the engine. 05 Intake air temperature Displays the intake air tem- perature.Compare the actually mea- sured air temperature with the meter display value. 06 Coolant temperature Displays the coolant temper- ature.Compare the actually mea- sured coolant temperature with the meter display val- ue. 07 Vehicle speed pulse 0–999 Check that the number in- creases when the rear wheel is rotated. The num- ber is cumulative and does not reset each time the wheel is stopped. 08 Lean angle sensor Remove the lean angle sensor and incline it more than 65 degrees. •Upright 0.4–1.4 •Overturned 3.7–4.4 09 Fuel system voltage (bat- tery voltage)Approximately 12.0 Set the engine stop switch to “”, and then compare with the actually measured battery voltage. (If the bat- tery voltage is lower, re- charge the battery.) 13 Throttle position sensor (for throttle valves) signal 2 •Fully closed position 9–23 Check with throttle valve fully closed. •Fully opened position 94–108 Check with throttle valve fully opened.
FUEL INJECTION SYSTEM 8-45 14 Throttle position sensor (for throttle cable pulley) signal 1 •Fully closed position 12–22 Check with throttle grip fully closed. •Fully opened position 97–107 Check with throttle grip fully opened. 15 Throttle position sensor (for throttle cable pulley) signal 2 •Fully closed position 10–24 Check with throttle grip fully closed. •Fully opened position 95–109 Check with throttle grip fully opened. 20 Sidestand switch Set ON/OFF the sidestand switch (with the transmis- sion in gear). •Stand retracted ON •Stand extended OFF 21 Neutral switch Shift the transmission. •Neutral ON •In gear OFF 60 EEPROM fault cylinder No.— •No history 00 •History exists 01-04 (fault cylinder No.) •(If more than one cylinder is defective, the display changes every two seconds to show all the detected cyl- inder numbers. When all cylinder numbers are shown, the display re- peats.) 61 Malfunction history code— •No history 00 •History exists Fault codes 11-60 •(If more than one code number is detected, the dis- play changes every two seconds to show all the de- tected code numbers. When all code numbers are shown, the display re- peats.) Diag- nostic code No.Item Meter display Checking method
FUEL INJECTION SYSTEM 8-46 Actuator operation table62 Malfunction history code erasure •No history 00— •History exists•Displays the total number of malfunctions, including the current malfunction, that have occurred since the history was last erased. (For example, if there have been three malfunctions, “03” is displayed.)To erase the history, set the engine stop switch from “” to “”. 63 Malfunction code reinstate (for fault code No. 24 and 40 only) •No malfunction code 00— •Malfunction code exists Fault codes 24, 40 •(If more than one code number is detected, the dis- play changes every two seconds to show all the de- tected code numbers. When all code numbers are shown, the display re- peats.)To reinstate, set the engine stop switch from “” to “”. 70 Control number 00— Diag- nostic code No.Item Meter display Checking method Diag- nostic code No.Item Actuation Checking method 30 Cylinder-#1 ignition coilActuates the cylinder-#1 igni- tion coil five times at one- second intervals. Illuminates the engine trou- ble warning light.Check the spark five times. •Connect an ignition checker. 31 Cylinder-#2 ignition coilActuates the cylinder-#2 igni- tion coil five times at one- second intervals. Illuminates the engine trou- ble warning light.Check the spark five times. •Connect an ignition checker. 32 Cylinder-#3 ignition coilActuates the cylinder-#3 igni- tion coil five times at one- second intervals. Illuminates the engine trou- ble warning light.Check the spark five times. •Connect an ignition checker.
FUEL INJECTION SYSTEM 8-47 33 Cylinder-#4 ignition coilActuates the cylinder-#4 igni- tion coil five times at one- second intervals. Illuminates the engine trou- ble warning light.Check the spark five times. •Connect an ignition checker. 36 Primary injector #1Actuates the primary injector #1 five times at one-second intervals. Illuminates the engine trou- ble warning light.Check the operating sound of the primary injector #1 five times. 37 Primary injector #2Actuates the primary injector #2 five times at one-second intervals. Illuminates the engine trou- ble warning light.Check the operating sound of the primary injector #2 five times. 38 Primary injector #3Actuates the primary injector #3 five times at one-second intervals. Illuminates the engine trou- ble warning light.Check the operating sound of the primary injector #3 five times. 39 Primary injector #4Actuates the primary injector #4 five times at one-second intervals. Illuminates the engine trou- ble warning light.Check the operating sound of the primary injector #4 five times. 40 Secondary injector #1Actuates the secondary in- jector #1 five times at one- second intervals. Illuminates the engine trou- ble warning light.Check the operating sound of the secondary injector #1 five times. 41 Secondary injector #2Actuates the secondary in- jector #2 five times at one- second intervals. Illuminates the engine trou- ble warning light.Check the operating sound of the secondary injector #2 five times. 42 Secondary injector #3Actuates the secondary in- jector #3 five times at one- second intervals. Illuminates the engine trou- ble warning light.Check the operating sound of the secondary injector #3 five times. 43 Secondary injector #4Actuates the secondary in- jector #4 five times at one- second intervals. Illuminates the engine trou- ble warning light.Check the operating sound of the secondary injector #4 five times. Diag- nostic code No.Item Actuation Checking method