Lexus ES: On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. FUEL PUMP ASSEMBLY OPERATION
(a) Check fuel pressure.
(1) Connect the Techstream to the DLC3.
(2) Start the engine.
(3) Turn the Techstream on.
(4) Enter the following menus: Powertrain / Engine / Active Test / Control the Target Fuel Pressure Offset.
Powertrain > Engine > Active Test| Active Test Display |
|---|
| Control the Target Fuel Pressure Offset |
| Data List Display |
|---|
| Fuel Pressure (High) |
(5) Select the Data List item: Fuel Pressure (High)
(6) Check that the fuel pressure fluctuates when the target fuel pressure changes.
HINT:
The target fuel pressure operation decreases the target fuel pressure by 12.5% or increases the target fuel pressure by 24.8%.
If the result is not as specified, replace the fuel pump assembly or fuel pressure sensor (fuel delivery pipe with sensor assembly LH).
(b) Check operating sound.
(1) Remove the V-bank cover sub-assembly.
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(2) Start the engine.
(3) Using a sound scope, check the operating sound of the fuel pump assembly.
If no sound can be heard, check the fuel pump assembly, wire harness and ECM.
(4) Stop the engine.
(5) Install the V-bank cover sub-assembly.
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READ NEXT:
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 fuel
Inspection
INSPECTION PROCEDURE 1. INSPECT FUEL PUMP ASSEMBLY (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condit
Installation
INSTALLATION PROCEDURE 1. TEMPORARILY INSTALL FUEL PUMP ASSEMBLY (a) Turn the crankshaft pulley until the flat of the camshaft faces the fuel pump lifter assembly. HINT: This prevents the camshaft
SEE MORE:
Automatic air conditioning system
Air outlets and fan speed are automatically adjusted according to the
temperature
setting.
Press the "MENU" button on the Remote Touch, then select "Climate" to display
the air conditioning control screen.
12.3-inch display model: The air conditioning system can be displayed and
operated
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE:
If the auxiliary battery voltage becomes low, auxiliary battery load control will operate in order to ensure sufficient power is supplied to the power steering system. In this case, the windshield deicer system may not operate.
HINT:
Use the table below to hel
