Lexus ES: Inspection
INSPECTION
PROCEDURE
1. INSPECT WATER INLET WITH THERMOSTAT SUB-ASSEMBLY
CAUTION:
- Do not put your hands into the water that has been heated for the inspection.
- Touching the heated water could result in burns.
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HINT:
The valve opening temperature is inscribed on the water inlet with thermostat sub-assembly.
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(a) Immerse the water inlet with thermostat sub-assembly in water and then gradually heat the water.
NOTICE:
Do not allow any water to come into contact with the water inlet with thermostat sub-assembly connector.
(b) Check that the valve of the water inlet with thermostat sub-assembly opens at the specified temperature.
Standard Valve Opening Temperature:
80 to 84°C (176 to 183°F)
If the result is not as specified, replace the water inlet with thermostat sub-assembly.
| (c) Check the valve lift. Standard Valve Lift: 8.0 mm (0.315 in.) or more at 95°C (203°F) If the result is not as specified, replace the water inlet with thermostat sub-assembly. |
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(d) Check that the valve is fully closed when the water inlet with thermostat sub-assembly is at low temperatures (below 72°C (162°F)).
If it is not fully closed, replace the water inlet with thermostat sub-assembly.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 1 - 2 | Always | 10.6 to 14.2 Ω |
If the result is not as specified, replace the water inlet with thermostat sub-assembly.
READ NEXT:
Installation
INSTALLATION CAUTION / NOTICE / HINT NOTICE: This procedure includes the installation of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts. Click here
Components
COMPONENTS ILLUSTRATION *1 ENGINE WATER PUMP ASSEMBLY (WATER INLET HOUSING) *2 GASKET N*m (kgf*cm, ft.*lbf): Specified torque ● Non-reusable part
SEE MORE:
Lost Communication with TCM (U0101,U0122,U0142,U0155,U0327,U1117)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area U0101 Lost Communication with TCM Communication malfunction detected between luggage closer motor assembly and ECM
CAN communication system
ECM
Luggage closer motor assembly
U0122 Lost Communic
Main Body ECU Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Main Body ECU Communication Stop Mode Any of the following conditions are met:
Communication stop for "Main Body" is indicated on the "Communication Bus Check" screen of the Techstream.
Click here
Communication stop history for "Ma
