Lexus ES: Inspection
INSPECTION
PROCEDURE
1. INSPECT GENERATOR BRUSH HOLDER ASSEMBLY
| (a) Using a vernier caliper, measure the length of the exposed brushes. Standard Exposed Brush Length: 9.5 to 11.5 mm (0.374 to 0.453 in.) Minimum Exposed Brush Length: 4.5 mm (0.177 in.) If the brush length is less than the minimum, replace the generator brush holder assembly. |
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2. INSPECT GENERATOR ROTOR ASSEMBLY
(a) Check the generator rotor assembly for an open circuit.
| (1) Measure the resistance according to the value(s) in the table below. Standard Resistance:
If the result is not as specified, replace the generator rotor assembly. |
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(b) Check the generator rotor assembly for a short to ground.
| (1) Measure the resistance according to the value(s) in the table below. Standard Resistance:
If the result is not as specified, replace the generator rotor assembly. |
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| (c) Check that the generator rotor bearing is not rough or worn and that it rotates smoothly. If the generator rotor bearing is rough or worn, or does not rotate smoothly, replace the generator rotor assembly. |
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(d) Check the slip ring.
(1) Check that the slip rings are not rough or scored.
If the slip rings are rough or scored, replace the generator rotor assembly.
| (2) Using a vernier caliper, measure the slip ring diameter. Standard Diameter: 14.2 to 14.8 mm (0.559 to 0.583 in.) Minimum Diameter: 14.0 mm (0.551 in.) If the diameter is less than the minimum, replace the generator rotor assembly. |
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3. INSPECT GENERATOR ROTOR BEARING
| (a) Check that the generator rotor bearing is not rough or worn and that it rotates smoothly. If the generator rotor bearing is rough or worn, or does not rotate smoothly, replace the generator rotor bearing. |
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Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE GENERATOR PULLEY CAP (a) Remove the generator pulley cap from the generator pulley with clutch. NOTICE:
Do not reuse the generator pulley cap.
If the generato
On-vehicle Inspection
ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT NOTICE:
Do not remove the generator pulley cap.
If the generator pulley cap is removed, replace the generator pulley cap and generator pulley with cl
Components
COMPONENTS ILLUSTRATION *1 GENERATOR ASSEMBLY *2 COOL AIR INTAKE DUCT SEAL *3 INLET AIR CLEANER ASSEMBLY *4 WIRE HARNESS CLAMP BRACKET Tightening torque for "Major areas inv
SEE MORE:
Rough Idling
DESCRIPTION Problem Symptom Suspected Area Trouble Area
Engine speed fluctuation due to abnormal combustion
Idle speed too low or high
Strong engine vibration due to above symptoms
Ignition malfunction
Deviation in air fuel ratio (Excessive or insufficient intake air volume
Rear Window Defogger System does not Operate
DESCRIPTION When the rear window defogger switch on the air conditioning control assembly is pressed, the operation signal is transmitted to the air conditioning amplifier assembly via LIN communication. When the air conditioning amplifier assembly receives the signal, it turns on the DEF relay to o
