Lexus ES: Inspection
INSPECTION
PROCEDURE
1. INSPECT VACUUM SWITCHING VALVE (for Active Control Engine Mount System)
(a) Measure the resistance.
| (1) Measure the resistance according to the value(s) in the table below. Standard Resistance:
If the result is not as specified, replace the vacuum switching valve (for active control engine mount system). |
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(b) Check the operation of the vacuum switching valve (for active control engine mount system).
| (1) Using a vacuum pump, apply a vacuum of 67 kPa (503 mmHg, 19.8 in. Hg) to port (F) and check that the vacuum is maintained. OK: Vacuum pressure holds. If the result is not as specified, replace the vacuum switching valve (for active control engine mount system). |
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| (2) Check that air flows from port (E) to port (G). Standard: Air flows from port (E) to port (G). If the result is not as specified, replace the vacuum switching valve (for active control engine mount system). |
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| (3) Apply battery voltage to the terminals and check that air flows from port (E) to port (F). Standard: Air flows from port (E) to port (F). If the result is not as specified, replace the vacuum switching valve (for active control engine mount system). |
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Installation
INSTALLATION PROCEDURE 1. INSTALL VACUUM SWITCHING VALVE (for Active Control Engine Mount System) (a) Install the vacuum switching valve (for active control engine mount system) to the front engine mo
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Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during exhaust manifold (TWC: Front Catalyst) removal/installation are shown below. Necessary Procedures After
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
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 suspect
