2. Remove and check the cooling system fan motor relay. If the relay is OK, proceed to step #3, if the relay is faulty, it should be replaced.
3. Measure the voltage between terminal "2" of the cooling fan motor relay connector and ground. If the voltage matches the battery voltage, proceed to step #4; if it does not, replace the relay unit.
4. Close terminals "1" and "2" of the cooling system fan motor relay connector. If the fan rotates, proceed to step #9, if it does not rotate, proceed to step #5.
5. Open terminals "1" and "2" of the cooling system fan motor relay connector.
6. Disconnect the radiator fan motor connector.
7. Check the continuity between terminal "1" of the cooling system fan motor relay connector and terminal "2" of the radiator fan motor connector. If there is continuity between the terminals, go to step #8. If there is no continuity, repair the open circuit between the radiator fan and the cooling system fan motor relay.
8. Check the continuity between terminal "1" of the radiator fan motor connector and ground. If continuity is present, replace the radiator fan; if there is no continuity, repair the open circuit of the ground wire "G330" or the open circuit of the ground circuit of the radiator fan.
9. Open terminals "1" and "2" of the cooling system fan motor relay connector.
10. Turn the ignition key to the "ON" position.
11. Measure the voltage between terminal "5" of the cooling fan motor relay connector and ground. If the voltage matches the battery voltage, check the wiring harness between the cooling fan motor relay and the injection system ECU, otherwise replace the relay unit.
[Based on materials from the website: HondaBook]