Component Function Check
1.CHECK COOLING FAN FUNCTION
With CONSULT
Is the inspection result normal? YES >> INSPECTION END
NO >> Proceed to EC-458, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK COOLING FAN RELAY POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> GO TO 2.
NO >> Perform trouble diagnosis for power supply circuit.
2.CHECK COOLING FAN MOTOR CIRCUIT-1
Check the voltage between cooling fan relays-2, -3 harness connectors and ground.
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 4.
3.CHECK COOLING FAN RELAY OUTPUT SIGNAL CIRCUIT
Is the inspection result normal? YES >> GO TO 6.
NO >> Repair or replace error-detected parts.
4.CHECK COOLING FAN MOTOR POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> GO TO 5.
NO >> Perform trouble diagnosis for power supply circuit.
5.CHECK COOLING FAN MOTOR CIRCUIT-2
Is the inspection result normal? YES >> GO TO 11.
NO >> Repair or replace error-detected parts.
6.CHECK COOLING FAN MOTOR CIRCUIT-3
Is the inspection result normal? YES >> GO TO 7.
NO >> Repair or replace error-detected parts.
7.CHECK COOLING FAN MOTOR CIRCUIT-4
Is the inspection result normal? YES >> GO TO 8.
NO >> Repair or replace error-detected parts.
8.CHECK COOLING FAN MOTOR CIRCUIT-5
Is the inspection result normal? YES >> GO TO 9.
NO >> Repair or replace error-detected parts.
9.CHECK COOLING FAN MOTOR CIRCUIT-4
Is the inspection result normal? YES >> GO TO 10.
NO >> Repair or replace error-detected parts.
10.CHECK COOLING FAN RELAY-2 AND -3
Refer to EC-461, "Component Inspection (Cooling Fan Relay)".
Is the inspection result normal? YES >> GO TO 11.
NO >> Replace malfunctioning cooling fan relay.
11.CHECK COOLING FAN MOTORS-1 AND -2
Refer to EC-461, "Component Inspection (Cooling Fan Motor)".
Is the inspection result normal? YES >> GO TO 12.
NO >> Replace malfunctioning cooling fan motor. Refer to CO-17, "Removal and Installation".
12.CHECK INTERMITTENT INCIDENT
Perform GI-41, "Intermittent Incident".
Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-35, "Removal and Installation".
NO >> Repair or replace error-detected parts.
Component Inspection (Cooling Fan Motor)
1.CHECK COOLING FAN MOTOR
Check that cooling fan speed of condition B is higher than that of A.
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace cooling fan motor. Refer to CO-17, "Removal and Installation".
Component Inspection (Cooling Fan Relay)
1.CHECK COOLING FAN RELAYS
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace cooling fan relay.
Preparation
Special Service Tool
The actual shape of the tools may differ from those illustrated here.
Tool number
(TechMate No.)
Tool name
Description
—
(J-46534)
Trim Tool Set
Removing trim components
Commercial Service Tools
Tool name
...
Wiring diagram
POWER WINDOW SYSTEM
Wiring Diagram
...
Wiring diagram
CAN SYSTEM
Wiring Diagram - CAN SYSTEM -
...