Lexus RX (RX 350L, RX450h) 2016-2026 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.
Click here
(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.
Click here
(7) Install the front wiper motor and link assembly.
Click here
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 ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Sfi System: EVAP System
RELATED DTCS DTC No. SAE Monitoring Item Link P00FE00 P00FE EVAP vent line blocked P043E00 P043E Reference orifice clogged (built into canister pump module) P043F00 P043F Reference orifice high-flow (built into canister pump module) P04417E P0441 Pu ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Sfi System: Internal Control Module Monitoring Processor Performance Watchdog/Safety MCU Failure (P060A47)
MONITOR DESCRIPTION The main CPU and sub CPU of the ECM perform data communication between each other. The main CPU monitors the communications and WDC pulses from the sub CPU. When the signal malfunctions below are detected, this DTC is stored. DTC No. Detection Item DTC Detection Condition ...
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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