Diagnosis Procedure: Notes
- INSPECTION START
Do you have CONSULT?
Yes or No
Yes >> GO TO 2.
No >> GO TO 3.
- CHECK COOLING FAN OPERATION
With CONSULT
- Turn ignition switch ON.
- Select "COOLING FAN" in "ACTIVE TEST" mode with CONSULT.
- Check that cooling fans-1 and -2 operates at each speed (LOW/HI).
OK or NG
OK: GO TO 4.
NG: Check cooling fan control circuit. (Refer to "PROCEDURE A ".)
- CHECK COOLING FAN OPERATION
Without CONSULT
- Perform IPDM E/R auto active test and check cooling fan motor operation. Refer to , "AUTO ACTIVE TEST ".
- Check that cooling fans-1 and -2 operates at each speed (Low/High).
OK or NG
OK: GO TO 4.
NG: Check cooling fan control circuit. (Refer to "PROCEDURE A ".)
- CHECK COOLING SYSTEM FOR LEAK
Refer to ENGINE COOLANT .
OK or NG
OK: GO TO 5.
NG: Check the following for leak.
- Hose
- Radiator
- Water pump
- CHECK RADIATOR CAP
Refer to RADIATOR .
OK or NG
OK: GO TO 6.
NG: Replace radiator cap. Refer to , "COMPONENT ".
- CHECK COMPONENT PARTS
Check the following.
- Thermostat. (Refer to WATER PUMP .)
- Engine coolant temperature sensor. (Refer to "COMPONENT INSPECTION ".)
OK or NG
OK: GO TO 7.
NG: Replace malfunctioning component parts.
- CHECK MAIN 13 CAUSES
If the cause cannot be isolated, go to "MAIN 12 CAUSES OF OVERHEATING ".
INSPECTION END