Component Inspection
- CHECK COOLING FAN SPEED SENSOR
- Turn ignition switch OFF.
- Disconnect electrically-controlled cooling fan coupling harness connector.
- Rotate the electrically-controlled cooling fan coupling slowly with hand and check the voltage between electrically-controlled cooling fan coupling connector terminals under the following conditions.
+ - Condition Voltage (V)
(Approx.)Electrically-controlled cooling fan coupling Terminal 5 4 - 5V direct current supply to terminal 2
- Terminal 4 connect to ground
0 ↔ 5 NOTE: The voltage is in waveform
Is the inspection result normal?
YES>>
INSPECTION END
NO>>
Replace Electrically-controlled cooling fan coupling.