Yamaha Fz6n Manual
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8-33 LIGHTING SYSTEMELEC YESNO 1. Tail / brake light bulb and socket Check the tail / brake light bulb and socket for continuity. Refer to “CHECKING THE BULBS AND BULB SOCKETS”. Are the tail / brake light bulb and socket OK? Replace the tail / brake light bulb, socket or both. EAS00790 3. The tail / brake light fails to come on. YESNO 2. Voltage Connect the pocket tester (DC 20 V) to the tail / brake light coupler (wire harness side) as shown. Wiring circuit from the main switch to the tail / brake light coupler is faulty and must be repaired. Positive tester probe blue Negative tester probe black 1 2 Turn the main switch to “ON”. Measure the voltage (DC 12 V) of blue on the tail / brake light coupler (wire harness side). Is the voltage within specification? 2 This circuit is OK. EAS00791 4. The turn signa l/ position light fails to come on. YESNO 1. Turn signal / position light and socket Check the turn signal / position light bulb and socket for continuity. Refer to “CHECKING THE BULBS AND BULB SOCKETS”. Are the turn signal / position light bulb and socket OK? Replace the turn sig- nal / position light bulb, socket or both. YESNO 2. Voltage Connect the pocket tester (DC 20 V) to the turn signal / position light coupler (wire har- ness side) as shown. The wiring circuit from the main switch to the turn signal / position light coupler is faulty and must be repaired. Turn the main switch to “ON”. Measure the voltage (DC 12 V) of blue or blue / red on the turn signal / position light coupler (wire harness side). Is the voltage within specification? 3 This circuit is OK. Left turn signal / position light Positive tester probe blue Negative tester probe black Right turn signal / position light Positive tester probe blue / red Negative tester probe black 1 2 A Left turn signal / position light Right turn signal / position light B A B 3 4 1
8-34 SIGNALING SYSTEMELEC EAS00793 SIGNALING SYSTEM CIRCUIT DIAGRAM
8-35 SIGNALING SYSTEMELEC 1Main switch 4Fuse (backup) 6Fuse (main) 9Battery 10Starting circuit cut-off relay 12Neutral switch 13Fuel pump 20ECU 31Oil level waning light 33Neutral indicator light 34Multi-function meter 36Turn signal indicator light 37Oil level switch 39Front brake light switch 45Fuse (signal) 47Fuse (ignition) 48Fuse (tail) 49Turn signal relay 50Rear brake light switch 52Tail / brake light 56Hazard switch 57Turn signal switch 58Horn switch 59Horn 63Rear turn signal light (right) 64Rear turn signal light (left) 65Front turn signal / position light (right) 66Front turn signal / position light (left)
8-36 YESNO Clean the battery terminals. Recharge or re- place the battery. EAS00749 3. Main switch Check the main switch for continuity. Refer to “CHECKING THE SWITCHES”. Is the main switch OK? YESNO Replace the main switch. YESNO 1. Horn switch Check the horn switch for continuity. Refer to “CHECKING THE SWITCHES”. Is the horn switch OK? Replace the left han- dlebar switch. EAS00796 CHECKING THE SIGNALING SYSTEM 1. The horn fails to sound. EAS00795 4. Wiring Check the entire signaling system’s wiring. Refer to “CIRCUIT DIAGRAM”. Is the signaling system’s wiring properly connected and without defects? YESNO Properly connect or repair the signaling system’s wiring. Check the condition of each of the signal- ing system’s circuits. Refer to “CHECK- ING THE LIGHTING SYSTEM”. SIGNALING SYSTEMELEC NOTE: YESNO 1. Backup, main, ignition, signal and tail fuses Check the backup, main, ignition, signal and tail fuses for continuity. Refer to “CHECKING THE FUSES” in chap- ter 3. Are the backup, main, ignition, signal and tail fuses OK? Replace the fuse(s). 2. Battery Check the condition of the battery. Refer to “CHECKING AND CHARGING THE BATTERY” in chapter 3. Minimum open-circuit voltage 12.8 V or more at 20C (68F) Is the battery OK? EAS00739EAS00794 TROUBLESHOOTING Any of the following fail to light: turn sig- nal light, brake light or an indicator light. The horn fails to sound. Check: 1. backup, main, ignition, signal, and tail fuses 2. battery 3. main switch 4. wiring connections (of the entire signaling system) Before troubleshooting, remove the following part(s): 1. seat 2. front cowling inner panel (left and right) 3. fuel tank 4. side cover Troubleshoot with the following special tool(s). Pocket tester 90890-03112, YU-3112 EAS00738
8-37 SIGNALING SYSTEMELEC YESNO 1. Tail / brake light bulb and socket Check the tail / brake light bulb and socket for continuity. Refer to “CHECKING THE BULBS AND BULB SOCKETS”. Are the tail / brake light bulb and socket OK? Replace the tail / brake light bulb, socket or both. EAS007972. The tail / brake light fails to come on. YESNO 2. Brake light switches Check the brake light switches for continuity. Refer to “CHECKING THE SWITCHES”. Is the brake light switch OK? Replace the brake light switch. 3. Voltage Connect the pocket tester (DC 20 V) to the tail / brake light coupler (wire harness side) as shown. Negative tester probe black Positive tester probe yellow 1 2 Turn the main switch to “ON”. Pull in the brake lever or push down on the brake pedal. Measure the voltage (DC 12 V) of yellow on the tail / brake light coupler (wire harness side). Is the voltage within specification? 2 YESNO 2. Voltage Connect the pocket tester (DC 20 V) to the horn connector at the horn terminal as shown. The wiring circuit from the main switch to the horn connec- tor is faulty and must be repaired. Negative tester probe ground Positive tester probe black / white 1 Turn the main switch to “ON”. Push the horn switch. Measure the voltage (DC 12 V) of black / white at the horn terminal. Is the voltage within specification? NOYES 3. Horn Disconnect the black connector at the horn terminal. Connect a jumper lead to the horn termi- nal and ground the jumper lead. Turn the main switch to “ON”. Push the horn switch. Does the horn sound? The horn is OK. 1 Replace the horn.
8-38 SIGNALING SYSTEMELEC NO YESNO The wiring circuit from the main switch to the tail / brake light coupler is faulty and must be repaired. This circuit is OK. YES 1. Turn signal indicator light (LEDs) Check the turn signal indicator light for conti- nuity. Refer to “CHECKING THE LEDs”. Are the turn signal indicator light OK? Replace the meter assembly. EAS00799 3. The turn signal / position light, turn signal indicator light or both fail to blink. YES 2. Turn signal switch Check the turn signal switch for continuity. Refer to “CHECKING THE SWITCHES”. Is the turn signal switch OK? Replace the left han- dlebar switch. 3. Voltage Connect the pocket tester (DC 20 V) to the turn signal relay coupler (wire harness side) as shown. Negative tester probe ground Positive tester probe brown / green 1 Turn the main switch to “ON”. Measure the voltage (DC 12 V) on brown / green at the turn signal relay coupler (wire harness side). Is the voltage within specification? 1 YESNO The wiring circuit from the main switch to the turn signal relay coupler is faulty and must be re- paired. YESNO 4. Voltage Connect the pocket tester (DC 20 V) to the turn signal relay coupler (wire harness side) as shown. The turn signal relay is faulty and must be replaced. Positive tester probe ground Negative tester probe brown / white 1 Turn the main switch to “ON”. Measure the voltage (DC 12 V) on brown / white at the turn signal relay cou- pler (wire harness side). Is the voltage within specification? 1 5. Voltage Connect the pocket tester (DC 20 V) to the turn signal / position light connector or meter assembly coupler (wire harness side) as shown. Front turn signal / position light Rear turn / signal light Turn signal indicator light A B C NO
8-39 SIGNALING SYSTEMELEC YESNO The wiring circuit from the turn signal switch to the turn sig- nal light connector is faulty and must be repaired. Left turn signal / position light Positive tester probe ground Negative tester probe chocolate Right turn signal / position light Positive tester probe ground Negative tester probe dark green 1 2 Turn the main switch to “ON”. Set the turn signal switch to “ ” or “ ”. Measure the voltage (DC 12 V) of the choco- late or dark green at the turn signal light connector (wire harness side). Is the voltage within specification? 12 This circuit is OK. AB C 1. Neutral indicator light (LEDs) Check the neutral indicator light for continu- ity. Refer to “CHECKING THE LEDs”. Are the neutral indicator light OK? EAS00801 4. The neutral indicator light fails to come on. YESNO Replace the meter assembly. YESNO 2. Neutral switch Check the neutral switch for continuity. Refer to “CHECKING THE SWITCHES”. Is the neutral switch OK? Replace the neutral switch. When you switch the positive and negative tester probes, the readings in the above chart will be reversed. 3. Starting circuit cut-off relay (diode) Disconnect the starting circuit cut-off relay coupler from the wire harness. Connect the pocket tester (Ω 1) to the starting circuit cut-off relay coupler as shown. Check the starting circuit cut-off relay for continuity. Positive tester probe black / red Negative tester probe sky blue Continuity Positive tester probe sky blue Negative tester probe black / red No continuity 1 2 2 1 EAS00753 NOTE:
8-40 SIGNALING SYSTEMELEC YESNO Replace the starting circuit cut-off relay. YESNO 4. Voltage Connect the pocket tester (DC 20 V) to the meter assembly coupler (wire harness side) as shown. The wiring circuit from the main switch to the meter assem- bly coupler is faulty and must be re- paired. Negative tester probe ground Positive tester probe red / white 1 Turn the main switch to “ON”. Measure the voltage (DC 12 V) of red / white at the meter assembly coupler (wire harness side). Is the voltage within specification? This circuit is OK. Are the tester readings correct? YESNO 1. Oil level warning light (LEDs) Check the oil level warning light for continu- ity. When the main switch is turn to “ON”, the oil level warning light is come on. Are the oil level warning light OK? Replace the meter assembly. EAS00802 5. The oil level warning light fails to come on. YESNO 2. Oil level switch Drain the engine oil and remove the oil level switch from the oil pan. Connect the pocket tester (Ω 100) to the oil level switch as shown. Replace the oil level switch. Positive tester probe Connector (white) Negative tester probe Body ground 1 12 Measure the oil level switch resistance. Oil level switch resistance 114 126 Ω at 20C (68F) 484 536 Ω at 20C (68F) 1 2 Is the oil level switch OK? 2
8-41 SIGNALING SYSTEMELEC 3. Voltage Connect the pocket tester (DC 20 V) to the meter assembly coupler (wire harness side) as shown. Positive tester probe black / white Negative tester probe red / white 1 2 Turn the main switch to “ON”. Measure the voltage (DC 12V) of black / white and red / white at the meter as- sembly coupler. Is the voltage within specification? 12 YESNO The wiring circuit from the main switch to the meter assem- bly is faulty and must be repaired. This circuit is OK. EAS00803 6. The fuel level warning light fails to come on. 1. Fuel sender Drain the fuel from the fuel tank and remove the fuel pump from the fuel tank. Disconnect the fuel sender coupler from the wire harness. Connect the pocket tester (Ω 10) to the fuel sender terminals as shown. Tester positive probe green / white Tester negative probe black 1 2 Fuel sender resistance Full position of the float 20 26 Ω at 20C (68F) Empty position of the float 134 140 Ω at 20C (68F) Is the fuel sender OK? Measure the resistances when the float arm is in contact with the full position and empty position of the stopper. NOTE: Measure the fuel sender resistances. YESNO Replace the fuel pump.
8-42 SIGNALING SYSTEMELEC YESNO 2. Voltage Connect the pocket tester (DC 20 V) to the meter assembly coupler (wire harness side) as shown. The wiring circuit from the main switch to the meter assem- bly coupler is faulty and must be re- paired. Positive tester probe green / white Negative tester probe black / white 1 2 Turn the main switch to “ON”. Measure the voltage (DC 12 V) of green / white and black / white at the meter assembly coupler. Is the voltage within specification? This circuit is OK. 12