1. Verify that the battery is fully charged.
2. Install a tester and battery to the cooling fan motor connector (4 terminals) as shown in the figure.
Fan motor rotation speed
Connection terminal
Positive
Negative
High
A and C
B and D
Middle
C
B and D
Low
C
B
3. Verify that fan motor operates smoothly at the standard current.
If there is any malfunction, replace the applicable part.
Cooling fan motor current
High: 9.0—12.0 A
Middle: 6.4—9.4 A
Low: 4.8—7.8 A