Yamaha MTN850-A 2017 Service Manual page 382

5. Check the entire signaling system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-21.
OK
Replace the meter assembly.
The neutral indicator light fails to come on.
1. Check the gear position switch.
Refer to "CHECKING THE GEAR
POSITION SWITCH" on page
8-173.
OK
2. Check the relay unit (diode).
Refer to "CHECKING THE RELAY
UNIT (DIODE)" on page 8-163.
OK
3. Check the entire signaling system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-21.
OK
Replace the meter assembly.
The oil level warning light fails to come on.
1. Check the oil level switch.
Refer to "CHECKING THE
SWITCHES" on page 8-153.
OK
2. Check the entire signaling system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-21.
OK
Replace the meter assembly.
The fuel meter, fuel level warning light, or both fail to come on.
1. Check the fuel sender.
Refer to "CHECKING THE FUEL
SENDER" on page 8-168.
OK
Properly connect or repair the signaling
system's wiring.
NG
Replace the gear position switch.
NG
Replace the relay unit.
NG
Properly connect or repair the signaling
system's wiring.
NG
Replace the oil level switch.
NG
Properly connect or repair the signaling
system's wiring.
NG
Replace the fuel pump assembly.
NG
8-25
SIGNALING SYSTEM