D. The radiator fan motor fails to turn.
E. The coolant temperature meter (meter assembly) fails to indicate.
Check:
• main, ignition, and radiator fan motor fuses
• battery
• main switch
• radiator fan motor
• radiator fan motor relay
• coolant temperature sensor
• wiring connections
(the entire cooling system)
NOTE: d. Before troubleshooting, remove the following part(s):
e. battery cover
f. rear cover
g. footrest board
h. leg shield
i. inner fender
• Troubleshoot with the following special tool(s).
Pocket tester 90890-03112, YU-03112-C
EAS00738
1. Main, ignition, radiator fan motor fuses
• Check the main, ignition, radiator fan motor fuses for continuity.
Refer to “CHECKING THE FUSES” in chapter 3.
• Are the main, ignition, radiator fan motor fuses OK? 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?
• Clean the battery terminals.
• Recharge or replace the battery.
EAS00749
3. Main switch
• Check the main switch for continuity. Refer to “CHECKING THE SWITCHES”. • Is the main switch OK?
Replace the main switch/immobilizer unit.
Replace the fuse(s).
8 - 51 COOLING SYSTEM ELEC – +
EAS00809
4. Radiator fan motor
• Disconnect the radiator fan motor coupler from the wire harness. • Connect the battery (DC 12 V) as shown.
Positive battery lead → blue 1 Negative battery lead → black 2
• Does the radiator fan motor turn?
The radiator fan motor is faulty and must be replaced.
5. Radiator fan motor relay
• Remove the radiator fan motor relay from the wire harness. • Connect the pocket tester (Ω Ч 1) and bat-tery (12 V) to the radiator fan motor relay terminal as shown.
• Check the radiator fan motor relay of conti-nuity.
Positive battery lead → yellow/red 1 Negative battery lead → red/white 2
Positive tester probe → brown/red 3 Negative tester probe → blue 4
• Does the radiator fan motor relay have continuity between brown/red and blue?
Replace the radiator fan motor relay.
8 - 52 COOLING SYSTEM ELEC – +
EAS00812 6. Coolant temperature sensor
• Remove the coolant temperature sensor from the cylinder head. • Connect the pocket tester (Ω Ч 10) to the coolant temperature sensor 1 as shown.
• Immerse the coolant temperature sensor in a container filled with coolant 2.
NOTE:
Make sure the coolant temperature sensor terminals do not get wet.
• Place a thermometer 3 in the coolant.
• Slowly heat the coolant, and then let it cool to the specified temperature indicated in the table.
• Check the coolant temperature sensor for continuity at the temperatures indicated in the table.
WARNING
• Handle the coolant temperature sensor with special care. • Never subject the coolant temperature sensor to strong shocks. If the coolant temperature sensor is dropped, replace it.
• Does the coolant temperature sensor operate properly?
Replace the coolant temperature sensor.
EAS00813
7. Wiring
• Check the entire cooling system’s wiring. Refer to “CIRCUIT DIAGRAM”.
• Is the cooling system’s wiring properly connected and without defects?
8 - 53 IMMOBILIZER SYSTEM ELEC – +
IMMOBILIZER SYSTEM
SYSTEM DIAGRAM
1 Main switch and immobilizer unit
2 ECU (engine)
3 Immobilizer system indicator light
R............ Red
Br/L........ Brown/Blue
G/L......... Green/Blue
R/G........ Red/Green
R/W....... Red/White
Y/L......... Yellow/Blue
Battery
ECU (engine)
8 - 54
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