Lexus ES: On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. OPERATION CHECK
(a) Disconnect the No. 1 vacuum hose connector from the vacuum pump assembly.
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| (b) Connect the hose of the vacuum gauge to the vacuum pump assembly. | |
(c) Start the engine and warm it up for more than 2 minutes.
(d) With the engine idling, check the vacuum of the vacuum pump assembly.
Standard Pressure:
More than 86.7 kPa (650 mmHg, 25.6 in.Hg)
HINT:
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If the pressure is less than the standard, disassemble and inspect the vacuum pump assembly. If necessary, replace the vacuum pump assembly.
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Always perform this operation check procedure after replacing or servicing the vacuum pump assembly.
(e) Remove the vacuum gauge from the vacuum pump assembly.
(f) Connect the No. 1 vacuum hose connector to the vacuum pump assembly.
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READ NEXT:
REASSEMBLY PROCEDURE 1. CLEAN VACUUM PUMP HOUSING (a) Clean the inside surface of the vacuum pump housing. 2. INSTALL VACUUM PUMP ROTOR (a) Clean the vacuum pump rotor. (b) Apply engine oil to the are
REMOVAL CAUTION / NOTICE / HINT NOTICE: This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts. Click here PROCEDURE
SEE MORE:
DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU detects a stuck closed malfunction of a system main relay on the HV battery positive (+) terminal side. The cause of this malfunction may be one of the following: Inverter voltage sensor (VH) internal circuit malfunction
Voltage s
SYSTEM DESCRIPTION DESCRIPTION (a) The power steering ECU (rack and pinion power steering gear assembly) generates the necessary steering assist torque by calculating the steering assist force and controlling the motor current, based on the steering torque information from the torque sensor (rack an
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