Yamaha Fz6 N Service Manual

ELECTRICAL COMPONENTS
8-108
1. Coolant temperature sensor
2. Throttle position sensor
3. Intake air temperature sensor
4. Fuel pump
5. Intake air pressure sensor
6. ECU (engine control unit)
7. ABS ECU (FZ6-NA/FZ6-NAHG/FZ6-SA/FZ6-SAHG)
8. Lean angle sensor
9. Starting circuit cut-off relay
10.Rear wheel sensor
11.Dimmer relay
12.Radiator fan motor relay
13.Turn signal relay
14.Hydraulic unit
15.Rectifier/regulator
16.Front wheel sensor 

ELECTRICAL COMPONENTS
8-109
EAS27980
CHECKING THE SWITCHES 

ELECTRICAL COMPONENTS
8-110
1. Main switch
2. Horn switch
3. Dimmer switch (FZ6-S/FZ6-NA/FZ6-SA/FZ6-SHG(W)/FZ6-SAHG)
4. Dimmer switch (FZ6-N/FZ6-NHG(W)/FZ6- NAHG)
5. Pass switch (FZ6-S/FZ6-NA/FZ6-SA/FZ6- SHG(W)/FZ6-SAHG)
6. Pass switch (FZ6-N/FZ6-NHG(W)/FZ6- NAHG)
7. Turn signal switch
8. Hazard switch
9. Clutch switch
10.Sidestand switch
11.Engine stop switch
12.Front brake light switch
13.Start switch
14.Oil level switch
15.Neutral switch
16.Rear brake light switch
17.Fuse
18.Left handlebar switch...

ELECTRICAL COMPONENTS
8-111
Check each switch for continuity with the pocket tester. If the continuity reading is incorrect, check 
the wiring connections and if necessary, replace the switch.
CAUTION:
ECA14370
Never insert the tester probes into the coupler terminal slots “a”. Always insert the probes 
from the opposite end of the coupler, taking care not to loosen or damage the leads.
NOTE:
 Before checking for continuity, set the pocket tester to “0” and to the “Ω ×  1” range.
 When checking for...

ELECTRICAL COMPONENTS
8-112
EAS27990
CHECKING THE BULBS AND BULB SOCK-
ETS
Check each bulb and bulb socket for damage 
or wear, proper connections, and also for conti-
nuity between the terminals.
Damage/wear → Repair or replace the bulb, 
bulb socket or both.
Improperly connected  → Properly connect.
No continuity  → Repair or replace the bulb, 
bulb socket or both.
Types of bulbs
The bulbs used on this vehicle are shown in 
the illustration.
 Bulbs “a” is used for the headlight and usu- ally use a...

ELECTRICAL COMPONENTS
8-113
b. Connect the positive tester probe to termi-nal “1” and the negative tester probe to ter-
minal “3”, and check the continuity.
c. If either of the readings indicate no continu- ity, replace the bulb.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
Checking the condition of the bulb sockets
The following procedure applies to all of the 
bulb sockets.
1. Check:
 Bulb socket (for continuity) (with the pocket tester)
No continuity  → Replace.
NOTE:
Check each bulb socket for continuity in the...

ELECTRICAL COMPONENTS
8-114
b. If the pocket tester indicates “∞”, replace 
the fuse.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
3. Replace:  Blown fuse
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Set the main switch to “OFF”.
b. Install a new fuse of the correct amperage  rating.
c. Set on the switches to verify if the electrical 
circuit is operational.
d. If the fuse immediately blows again, check  the electrical circuit.
WARNING
EWA13310
Never use a fuse with an amperage rating 
other than that specified. Improvising or...

ELECTRICAL COMPONENTS
8-115
NOTE:
Since MF batteries are sealed, it is not possi-
ble to check the charge state of the battery by 
measuring the specific gravity of the electro-
lyte. Therefore, the charge of the battery has to 
be checked by measuring the voltage at the 
battery terminals.
1. Remove: Seat
 Front cowling inner panel
 Fuel tank
2. Disconnect:  Battery leads (from the battery terminals)
CAUTION:
ECA13640
First, disconnect the negative battery lead 
“1”, and then positive battery lead...

ELECTRICAL COMPONENTS
8-116
minutes after charging is completed 
before measuring the open-circuit volt-
age.
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
Charging method using a variable-current
(voltage) charger
a. Measure the open-circuit voltage prior to charging.
NOTE:
Voltage should be measured 30 minutes after 
the machine is stopped.
b. Connect a charged and AMP meter to the battery and start charging.
NOTE:
Set the charging voltage at 16–17 V. If the set-
ting is lower, charging  will be insufficient. If too...

ELECTRICAL COMPONENTS
8-117
8. Check: Battery terminals Dirt  → Clean with a wire brush.
Loose connection  → Connect properly.
9. Lubricate:  Battery terminals
10. Install:  Fuel tank
 Front cowling inner panel
Seat
EAS28040
CHECKING THE RELAYS
Check each switch for continuity with the 
pocket tester. If the continuity reading is incor-
rect, replace the relay.
1. Disconnect the relay from the wire harness.
2. Connect the pocket tester ( Ω ×  1) and bat-
tery (12 V) to the relay terminal as shown....