Home > Yamaha > Motorcycle > Yamaha Fz6 N Service Manual

Yamaha Fz6 N Service Manual

    Download as PDF Print this page Share this page

    Have a look at the manual Yamaha Fz6 N Service Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 255 Yamaha manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.

    Page
    of 538
    							
    FUEL INJECTION SYSTEM
    8-38
    8. Verify the operation of the sensor or actuator. Sensor operation
    The data representing the oper ating conditions of the sensor appears on the trip 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.
    9. Turn the main switch to “OFF” to cancel the diagnostic mode.
    Diagnostic code table
    A. FZ6-N/FZ6-NA/FZ6-S/FZ6-SA
    B. FZ6-NHG(W)/FZ6-NAHG/FZ6-SHG(W)/ FZ6-SAHG
    Fault 
    code  No. Symptom Probable cause of malfunction
    Diagnostic 
    code No.
    12 No normal signals are 
    received from the crank-
    shaft position sensor.  Open or short circuit in wire harness.
     Defective crankshaft position sensor.
     Malfunction in pickup rotor.
     Malfunction in ECU.
     Improperly installed sensor.
    —
    13 Intake air pressure sensor-
    open or short circuit 
    detected.  Open or short circuit in wire sub lead.
     Open or short circuit in wire harness.
     Defective intake air pressure sensor.
     Malfunction in ECU.
    03 
    						
    							
    FUEL INJECTION SYSTEM
    8-39
    14Intake air pressure sensor-
    pipe system malfunction 
    (clogged or detached 
    hose).
     Detected hose
     Clogged hose  Intake air pressure sensor hose is 
    detached, clogged, kinked, or pinched.
     Malfunction in ECU. 03
    15 Throttle position sensor-
    open or short circuit 
    detected.  Open or short circuit in wire sub lead.
     Open or short circuit in wire harness.
     Defective throttle position sensor.
     Malfunction in ECU.
     Improperly installed throttle position sensor.
    01
    16 Stuck throttle position sen-
    sor detected.  Defective sensor (stuck throttle position 
    sensor).
     Malfunction in ECU. 01
    19 Open circuit is detected in 
    the input line from the start 
    switch to the ECU.  Open or short circuit in wire harness.
     Malfunction in ECU.
    20
    21 Coolant 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
    22 Intake air temperature sen-
    sor-open or short circuit 
    detected.  Open or short circuit in wire harness.
     Defective intake temperature sensor.
     Malfunction in ECU.
     Improperly installed intake air temperature 
    sensor. 05
    24 No normal signal is 
    received from the O
    2 sen-
    sor.  Open or short circuit in wire harness.
     Defective O2 sensor.
     Malfunction in ECU.
     Improperly installed O
    2 sensor. —
    30 Latch up detected.
    No normal signal is 
    received from the lean 
    angle sensor.  The vehicle has overturned.
     Defective lean angle sensor.
     Malfunction in ECU.
     Improperly installed lean angle sensor.
    08
    33 Malfunction detected in the 
    primary wire of the ignition 
    coil (#1and #4).  Open or short circuit in wire harness.
     Malfunction in ignition coil.
     Malfunction in ECU.
     Malfunction in a component of ignition cut-
    off circuit system. 30
    34 Malfunction detected in the 
    primary wire of the ignition 
    coil (#2 and #3).  Open or short circuit in wire harness.
     Malfunction in ignition coil.
     Malfunction in ECU.
     Malfunction in a component of ignition cut-
    off circuit system. 31
    41 Lean angle sensor-open or 
    short circuit detected.  Open or short circuit in wire harness.
     Defective lean angle sensor.
     Malfunction in ECU.
    08
    Fault 
    code 
    No. Symptom Probable cause of malfunction
    Diagnostic 
    code No. 
    						
    							
    FUEL INJECTION SYSTEM
    8-40
    Sensor operation table42
    No normal signals are 
    received from the speed 
    sensor.
    Open or short circuit is 
    detected in the neutral 
    switch.  Open or short circuit in wire harness.
     Defective speed sensor.
     Malfunction in vehicle speed sensor 
    detected unit.
     Defective neutral switch.
     Malfunction in the engine side of the neutral  switch.
     Malfunction in ECU. 07
    21
    43 The ECU is unable to moni-
    tor the battery voltage
    (an open circuit in the line to 
    the ECU).  Open circuit in wire harness.
     Malfunction in ECU.
    09
    44 Error is detected while 
    reading or writing on 
    EEPROM (CO adjustment 
    value).  Malfunction in ECU. (The CO adjustment 
    value is not properly written on or read from 
    the internal memory). 60
    46 Power supply to the fuel 
    injection system is not nor-
    mal.  Malfunction in the charging system. Refer to 
    CHARGING SYSTEM on page 8-11. —
    50 Faulty 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 memory.) —
    Er-1 No signals are received 
    from the ECU.  Open or short circuit in communication line.
     Malfunction in meter unit.
     Malfunction in ECU.
    —
    Er-2 No signals are received 
    from the ECU within the 
    specified duration.  Open or short circuit in communication line.
     Malfunction in meter unit.
     Malfunction in ECU.
    —
    Er-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.
     Fully opened position 97–100 Check with throttle fully  open.
    Fault 
    code 
    No. Symptom Probable cause of malfunction
    Diagnostic 
    code No. 
    						
    							
    FUEL INJECTION SYSTEM
    8-41
    03Pressure difference
    (intake air pressure)
    Displays the intake air pres-
    sure. Turn On the engine stop 
    switch, then operate the 
    throttle while pressing the 
    start switch. (If the display 
    value changes, the perfor-
    mance is OK.)
    05 Intake air temperature Displays the intake air tem-
    perature. Compare the actually mea-
    sured intake air tempera-
    ture with the meter display 
    value. (*)
    06 Coolant temperature Displays the coolant tempera-
    ture. Compare the actually mea-
    sured coolant temperature 
    with the meter display 
    value.
    07 Vehicle speed pulse 0–999 Check that the number 
    changes (integrating) when 
    the rear wheels are rotated.
    08 Lean angle sensor Remove the lean angle 
    sensor and incline it more 
    than 65 degrees.
     Upright 0.4–1.4
     Overturned 3.8–4.2
    09 Fuel system voltage
    (battery voltage) Approximately 12.0
    Compare with the actually 
    measured battery voltage. 
    (If the battery voltage is 
    lower, perform recharging.)
    20 Sidestand  switch Turn ON/OFF the Sidestand 
    switch.
     Stand retracted ON
     Stand extended OFF
    21 Neutral switch Perform the shift operation 
    of transmission.
     Neutral ON
     In gear OFF
    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.)
    Diag-
    nostic 
    code  No. Item Meter display Checking method 
    						
    							
    FUEL INJECTION SYSTEM
    8-42
    * If it is not possible to check the intake temperature, use the ambient temperature as reference (use 
    the compared values for reference).
    Actuator operation table 61
    Malfunction history code 
    display
    —
     No history 00
     History exists 12-50 (Fault detection code)
     (If code numbers more than one are detected, the dis-
    play alternates every two 
    seconds to show all the 
    detected code numbers. 
    When all code numbers are 
    shown, the display repeats 
    the same process.)
    62 Malfunction history code 
    erasure
     No history 00 —
     History exists 00–17 (Memory numbers of 
    the fault detection) To erase the history, turn 
    ON the engine stop switch.
    63 Malfunction code reinstate
     No malfunction code 00 —
     Malfunction code exists Fault code 24
     (If more than one code number is detected, the dis-
    play changes every two 
    seconds to show all the 
    detected code numbers are 
    shown, the display repeats.) To reinstate, set the engine 
    stop switch to “ ”.
    70 Control number 00–255 —
    Diag-
    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.
    Diag-
    nostic 
    code  No. Item Meter display Checking method 
    						
    							
    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 “Self-Diag-
    nostic Function table”.
    Diagnostic code No.: 36 Injector #1/#4
    Actuates the injector #1/#4 
    for five times every second.
    Illuminates the engine trou-
    ble warning light.Check the operating sound 
    of the injector #1/#4 five 
    times.
    37 Injector #2/#3 Actuates the injector #2/#3 
    for five times every second.
    Illuminates the engine trou-
    ble warning light.Check the operating sound 
    of the injector #2/#3 five 
    times.
    48 AI system solenoid Actuates the AI system sole-
    noid for five times every sec-
    ond.
    Illuminates the engine trou-
    ble warning light.Check the operating sound 
    of the AI system solenoid 
    five times.
    50 Fuel injection system relay Actuates the fuel injection 
    system relay for five times 
    every second.
    Illuminates the engine trou-
    ble warning light.
    (The engine trouble warning 
    light is OFF when the relay is 
    ON, and the engine trouble 
    warning light is ON when the 
    relay is OFF).Check the operating sound 
    of the fuel injection system 
    relay five times.
    51 Radiator fan motor relay Actuates the radiator fan 
    motor relay for five cycles 
    every five-second. (ON 2 sec-
    onds, OFF 3 seconds)
    Illuminates the engine trou-
    ble warning light.Check the operating sound 
    of the Radiator fan motor 
    relay five times.
    52 Headlight relay Actuates the headlight relay 
    for five times every five-sec-
    ond. (ON 2 seconds, OFF 3 
    seconds)
    Illuminates the engine trou-
    ble warning light.Check the operating sound 
    of the headlight relay five 
    times.
    Diag-
    nostic 
    code  No. Item Actuation Checking method 
    						
    							
    FUEL INJECTION SYSTEM
    8-44
    Diagnostic code number to be used when the diagnostic mode is operated. Refer to DIAGNOSTIC 
    MODE on page 8-37.
    Fault code No. 12 Symptom No normal signals are received from the crankshaft posi-
    tion sensor.
    Diagnostic code No.
    Order Item/components and probable 
    cause Check or maintenance job
    Reinstate-
    ment method
    1 Installed condition of crankshaft posi-
    tion sensor Check the installed area for 
    looseness or pinching.Cranking the 
    engine.
    2 Connected state of connector
     Crankshaft position sensor coupler
     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, repair it  and connect it securely.
    3 Open or short circuit in wire harness 
    and/or sub lead.
     Repair or replace if there is an 
    open or short circuit.
     Between the crankshaft position  sensor coupler and ECU cou-
    pler.
    (Gray–Gray)
    (Black/Blue–Black/Blue)
    4 Defective crankshaft position sensor.  Replace if defective.
    Refer to CHECKING THE 
    CRANKSHAFT POSITION 
    SENSOR on page 8-122.
    Fault code No. 13 Symptom Intake air pressure sensor-open or short circuit detected.
    Diagnostic code No. 03 Intake air pressure sensor
    Order Item/components and probable 
    cause Check or maintenance job
    Reinstate-
    ment method
    1 Connected state of connector
     Intake air pressure sensor coupler
     Main wire harness ECU coupler
     Sub-wire harness coupler  Check the coupler for any pins 
    that may have pulled out.
     Check the locking condition of  the coupler.
     If there is a malfunction, repair it 
    and connect it securely. Turning the 
    main switch 
    ON.
    2 Open 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)
    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 8-129. 
    						
    							
    FUEL INJECTION SYSTEM
    8-45
    Fault code No. 14 SymptomA. Intake air pressure sensor-pipe system malfunction 
    (clogged or detached hose).
    B. Intake air pressure sensor-open or short circuit 
    detected.
    C. Stuck throttle position sensor detected.
    Diagnostic code No. 03 Intake air pressure sensor
    Order Item/components and probable 
    cause Check or maintenance job Reinstate-
    ment method
    1 Intake air pressure sensor hose  Check the intake air pressure 
    sensor hose condition.
     Repair or replace the sensor  hose. Starting the 
    engine and 
    operating it at 
    idle.
    2 Intake air pressure sensor malfunction 
    at intermediate electrical potential.
     Check and repair the connec-
    tion.
     Replace it if there is a malfunc- tion.
    3 Connected state of connector
     Intake air pressure sensor coupler
     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, repair it  and connect it securely.
    4 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 8-129. 
    						
    							
    FUEL INJECTION SYSTEM
    8-46
    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 pins 
    that may have pulled out.
     Check the locking condition of  the coupler.
     If there is a malfunction, repair it  and connect it securely.
    3 Open or short circuit in wire harness 
    and/or sub lead.
     Repair or replace if there is an 
    open or short circuit.
     Between throttle position sensor  coupler and ECU coupler
    (Black/Blue–Black/Blue)
    (Yellow–Yellow)
    (Blue–Blue)
    4 Throttle position sensor lead wire 
    open circuit output voltage check.
     Check for open circuit and 
    replace the throttle position sen-
    sor.
    (Black/Blue–Yellow)
    Open circuit  item Output voltage
    Ground wire 
    open circuit 5 V
    Output wire 
    open circuit 0 V
    Power s u pp l y 
    wire open circuit 0 V
    5 Defective throttle position sensor
    .  Execute the diagnostic monitor-
    ing mode. (Code No.01)
     Replace if defective. Refer to CHECKING THE 
    THROTTLE POSITION SEN-
    SOR on page 8-128.
    Fault code No. 16 Symptom A Stuck throttle position sensor 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.Starting the 
    engine and 
    operating it at 
    idle, and then 
    by racing it.
    2 Defective throttle position sensor
    .  Execute the diagnostic monitor-
    ing mode. (Code No.01)
     Replace if defective. Refer to CHECKING THE 
    THROTTLE POSITION SEN-
    SOR on page 8-128. 
    						
    							
    FUEL INJECTION SYSTEM
    8-47
    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, repair it  and connect it securely. If the transmis-
    sion is in gear, 
    retracting the 
    sidestand.
    If the transmis-
    sion is in neu-
    tral, 
    reconnecting 
    the wiring.
    2 Open or short circuit in wire harness 
    or sub lead.
     Repair or replace if there is an 
    open or short circuit.
     Between ECU and sidestand  switch
    (Black/Red–Blue/Green)
    3 Defective sidestand switch  Execute the diagnostic monitor-
    ing mode. (Code No.20)
     Replace if defective. Refer to CHECKING THE 
    SWITCHES on page 8-109.
    Fault code No. 21 Symptom Coolant temperature sensor-open or short circuit 
    detected.
    Diagnostic code No. 06 Coolant temperature sensor
    Order Item/components and probable 
    cause Check or maintenance job
    Reinstate-
    ment method
    1 Installed condition of coolant tempera-
    ture sensor Check the installed area for 
    looseness or pinching.Turning the 
    main switch 
    ON.
    2 Connected state of connector
     Coolant temperature sensor coupler
     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, repair it  and connect it securely.
    3 Open or short circuit in wire harness 
    and/or sub lead.
     Repair or replace if there is an 
    open or short circuit.
     Main wire harness (Black/Blue–Black/Blue)
    (Green/White–Green/White)
    4 Defective coolant temperature sens
    or.  Execute the diagnostic monitor-
    ing mode. (Code No.06)
     Replace if defective. Refer to CHECKING THE 
    COOLANT TEMPERATURE 
    SENSOR on page 8-127. 
    						
    All Yamaha manuals Comments (0)

    Related Manuals for Yamaha Fz6 N Service Manual