Radiator Cooling Fan Motor Relay: Testing and Inspection

FAN MOTOR
1. Disconnect electrical connector to fan motor.
2. Connect battery voltage across motor terminals using suitable jumper wires.
3. If fan fails to operate, motor is defective.

Fig. 9 Cooling Fan Relay Terminal Identification:

FAN RELAY
1. Disconnect electrical connector and remove relay.
2. Connect ohmmeter between relay terminals A and B, Fig. 9.
3. Meter should indicate no continuity.
4. Connect battery voltage across terminals C and D.
5. With relay energized, ohmmeter should indicate continuity between terminals A and B.