Lexus ES: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
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Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
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Inspect the fuses related to this system before inspecting the suspected areas below.
Symptom | Suspected Area | Link |
Cooling fan does not operate | Engine coolant temperature sensor | |
EFI-MAIN NO. 1 relay | |
Cooling fan circuit | |
Fan with motor assembly | - |
ECM | |
Cooling fan does not stop (continues to operates) | Engine coolant temperature sensor | |
Cooling fan circuit | |
Fan with motor assembly | - |
ECM | |
Cooling fan speed does not change | Cooling fan circuit | |
Fan with motor assembly | - |
ECM | |
READ NEXT:
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 inspe
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
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:
DISASSEMBLY CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during cylinder block removal/installation are shown below. Necessary Procedure After Parts Removed/Instal
INSTALLATION PROCEDURE 1. INSTALL CAMSHAFT TIMING GEAR BOLT (a) Make sure that the No. 1 cylinder is at TDC/compression. HINT: Check that the cutout of the camshaft timing gear assembly is at the top and align the timing mark (cutout) of the crankshaft pulley with the timing mark on the timing chain
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