Component Inspection
INSPECTION OF ELECTRIC COOLING FAN SYSTEM COMPONENTS1. INSPECT TEMPERATURE SWITCH
LOCATION: In the radiator lower tank
(a) Using an ohmmeter, check that there is no continuity when the coolant is above 90°C (194°F).
(b) Check that there is continuity when the coolant temperature is below 83°C (181°F).
If continuity is not as specified, replace the switch.
2. INSPECT COOLING FAN MOTOR RELAY
LOCATION: In the engine compartment relay box.
Inspect Relay Continuity
(a) Using an ohmmeter, check that there is continuity between terminals 1 and 2.
(b) Check that there is continuity between terminals 3 and 4.
If there is no continuity, replace the relay.
Inspect Relay Qperation
(a) Apply battery voltage across terminals 1 and 2.
(b) Check that there is no continuity between terminals 3 and 4.
If there is continuity, replace the relay.
3. INSPECT IGNITION MAIN RELAY
LOCATION: In the engine compartment relay box.
- Inspect Relay Continuity and Operation
4. INSPECT FAN MOTOR
(a) Connect the battery and ammeter to the fan motor connector.
(b) Check to see that the motor rotates smoothly, and current is as follows:
