Yamaha XSR 900 2022 Service Manual page 373

The oil pressure and coolant temperature warning light remains on after the engine is started.
1. Check the entire signaling sys-
tem's wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-21.
OK↓
2. Measure the engine oil pressure.
Refer to "MEASURING THE EN-
GINE OIL PRESSURE" on page 3-
26.
OK↓
Replace the oil pressure switch.
The fuel level warning light fails to come on.
1. Check the fuel sender.
Refer to "CHECKING THE FUEL
SENDER" on page 8-46.
OK↓
2. Check the entire signaling sys-
tem's wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-21.
OK↓
Replace the meter assembly.
The oil pressure and coolant temperature warning light fails to come on.
1. Check the coolant temperature
sensor.
Refer to "CHECKING THE COOL-
ANT TEMPERATURE SENSOR"
on page 8-47.
OK↓
2. Check the entire signaling sys-
tem's wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-21.
OK↓
Replace the ECU or meter assembly.
Refer to "REPLACING THE ECU (En-
gine Control Unit)" on page 8-41.
Properly connect or replace the wiring har-
NG→
ness.
Check the engine oil leakage, oil viscosity,
NG→
oil seal, oil filter, or oil pump.
NG→ Replace the fuel pump assembly.
Properly connect or repair the signaling
NG→
system's wiring.
NG→ Replace the coolant temperature sensor.
Properly connect or replace the wiring har-
NG→
ness.
8-26
SIGNALING SYSTEM