Lexus ES: On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT COOLING FAN SYSTEM
CAUTION:
To prevent injury due to contact with an operating cooling fan, keep your hands and clothing away from the cooling fan when inspecting the cooling fan system.
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(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Active Test / Control the Engine Cooling Fan Duty Ratio.
Powertrain > Engine > Active Test| Tester Display |
|---|
| Control the Engine Cooling Fan Duty Ratio |
(e) Check the operation of the cooling fan while operating it using the Techstream.
OK:
| Active Test Operation | Fan Operation |
|---|---|
| 30 - 100% | Cooling fan operates |
| 0% | Cooling fan stops |
If the cooling fan motor (fan with motor assembly) does not operate, check the cooling fan circuit.
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READ NEXT:
Cooling Fan Circuit
DESCRIPTION The ECM calculates an appropriate cooling fan speed based on the engine coolant temperature, air conditioning switch status, refrigerant pressure, engine speed and vehicle speed, and sends
Cooling System
On-vehicle InspectionON-VEHICLE INSPECTION CAUTION / NOTICE / HINT CAUTION: Do not remove the radiator cap sub-assembly while the engine and radiator assembly are still hot. Pressurized, hot engine c
SEE MORE:
Removal
REMOVAL CAUTION / NOTICE / HINT HINT: When removing a name plate or emblem, heat the vehicle body and name plate or emblem using a heat light. Heating Temperature Item Temperature Vehicle Body 40 to 60°C (104 to 140°F) Name Plate or Emblem 20 to 30°C (68 to 86°F) CAUTION:
Rear Television Camera Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Rear Television Camera Communication Stop Mode Any of the following conditions are met:
Communication stop for "Parking Assist Monitor System / Rear Camera" is indicated on the "Communication Bus Check" screen of the Techstream.
Click h
