Troubleshooting - Yamaha YZF-R1P Service Manual

EAS00808

TROUBLESHOOTING

• The radiator fan motor fails to turn.
• The coolant temperature meter (meter
assembly) fails to indicate when the
engine is warm.
Check:
1. main, ignition and radiator fan motor fuses
2. battery
3. main switch
4. radiator fan motor
5. radiator fan motor relay
6. coolant temperature sensor
7. wiring connections
(the entire cooling system)
NOTE:
_
• Before troubleshooting, remove the following
part(s):
1. seat
2. fuel tank
3. bottom cowling
4. side cowlings
• Troubleshoot with the following special
tool(s).
Pocket tester
YM-03112
EAS00738
1. Main, ignition and fan motor fuses
• Check the main and ignition fuses for con-
tinuity.
Refer to "CHECKING THE FUSES" in
chapter 3.
• Are the main and ignition fuses OK?
YES
NO
Replace the fuse(s).
8 - 42
COOLING SYSTEM
EAS00739
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 20 °C (68 °F)
• Is the battery OK?
YES
EAS00749
3. Main switch
• Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the main switch OK?
YES
– +
ELEC
NO
• Clean the battery
terminals.
• Recharge or
replace the bat-
tery.
NO
Replace the main
switch.