Before troubleshooting, remove the following part(s):
- 1. Rider seat
- 2. Left side cowling
- 3. Air intake air duct covers
- 4. Meter assembly
1. Check the each bulbs and bulb sockets condition. Refer to "Checking the bulbs and bulb sockets". → Replace the bulb(s) and bulb socket(s).
2. Check the fuses. (Main, headlight, ignition, signal and fuel injection system) Refer to "Checking the fuses". → Replace the fuse(s).
3. Check the battery. Refer to "Checking and charging the battery". → Clean the battery terminals. Recharge or replace the battery.
4. Check the main switch. Refer to "Checking the switches". → Replace the main switch.
5. Check the dimmer switch. Refer to "Checking the switches". → The dimmer switch is faulty. Replace the left handlebar switch.
6. Check the headlight relay. Refer to "Checking the relays". → Replace the headlight relay.
7. Check the entire lighting system's wiring. → Properly connect or repair the lighting system's wiring.
Refer to "Circuit diagram".
Replace the ECU or meter assembly.