Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: 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 delivery pipe with sensor assembly LH (fuel pressure sensor).
(b) Check operating sound.
(1) Remove the front wiper motor and link assembly.
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(2) Remove the outer cowl top panel sub-assembly.
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(3) Start the engine.
(4) 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.
(5) Stop the engine.
(6) Install the outer cowl top panel sub-assembly.
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(7) Install the front wiper motor and link assembly.
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Components
COMPONENTS ILLUSTRATION *A for TMC Made *B for TMMC Made *1 NO. 2 ENGINE UNDER COVER - - ILLUSTRATION *1 FUEL PUMP ASSEMBLY *2 FUEL PUMP PROTECTOR *3 NO. 1 FUEL ...
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 ...
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Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Can Communication System: Steering Angle Sensor Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Steering Angle Sensor Communication Stop Mode Either condition is met:
"Spiral cable (Steering Angle Sensor)" is not displayed on the CAN Bus Check screen of the Techstream.
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Communication system DTCs (DTCs that start w ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Vehicle Stability Control System: Yaw Rate Sensor Signal Bias Level Out of Range / Zero Adjustment Failure (C006328,C006396)
DESCRIPTION for Optitron Meter Type:
These DTCs are stored when the skid control ECU (brake actuator assembly) receives an internal malfunction signal from the yaw rate and acceleration sensor (airbag sensor assembly).
for TFT Meter Type:
These DTCs are stored when the skid control ECU (bra ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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