Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: System Diagram
SYSTEM DIAGRAM
FUEL FLOW DIAGRAM
| *A | for Direct Injection | - | - |
| *1 | Fuel Injector Assembly | *2 | Throttle Body with Motor Assembly |
| *3 | Fuel Pressure Sensor (for High Pressure) | *4 | Fuel Pressure Pulsation Damper Assembly |
| *5 | Plunger | *6 | Fuel Pump Assembly (for High Pressure) |
| *7 | Camshaft | *8 | Fuel Tank Assembly |
| *9 | Fuel Suction Tube with Pump and Gauge Assembly - Fuel Sender Gauge Assembly - Fuel Main Valve Assembly - Fuel Pump (for Low Pressure) | - | - |
| *a | High Pressure Fuel Line | *b | Low Pressure Fuel Line |
| *c | To Fuel Injector Assembly (for Port Injection) | - | - |
| *A | for Port Injection | - | - |
| *1 | Throttle Body with Motor Assembly | *2 | Fuel Injector Assembly |
| *3 | Fuel Tank Assembly | *4 | Fuel Suction Tube with Pump and Gauge Assembly - Fuel Sender Gauge Assembly - Fuel Main Valve Assembly - Fuel Pump (Low Pressure) |
| *5 | Fuel Pressure Sensor (for Low Pressure) | - | - |
| *a | Low Pressure Fuel Line | *b | To Fuel Pump Assembly (for High Pressure) |
ELECTRICAL CONTROL DIAGRAM
| *1 | Fuel Injector Assembly (for Direct Injection) | *2 | Fuel Injector Assembly (for Port Injection) |
| *3 | Fuel Pressure Sensor (for High Pressure) | *4 | Fuel Pump Assembly (for High Pressure) |
| *5 | ECM | *6 | Fuel Tank Assembly |
| *7 | Fuel Pump (Low Pressure) | *8 | Fuel Pressure Sensor (for Low Pressure) |
| *9 | Fuel Pump Control ECU Assembly | *10 | C/OPN Relay |
| *11 | Battery | *12 | Engine Switch |
HIGH PRESSURE SIDE FUEL SYSTEM WIRING DIAGRAM
LOW PRESSURE SIDE FUEL SYSTEM WIRING DIAGRAM
Precaution
PRECAUTION CAUTION:
The fuel tank assembly is very heavy. Be sure to follow the procedure described in the repair manual, or the fuel tank assembly may fall off the engine lifter.
To prevent ser ...
On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. CHECK FUEL PUMP OPERATION AND INSPECT FOR FUEL LEAK (a) Check fuel pump operation. (1) Connect the Techstream to the DLC3. (2) Turn the engine switch on (IG). NOTICE ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Shift Lever: On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. SECURE VEHICLE (a) Fully apply the parking brake and chock a wheel. CAUTION:
Make sure to apply the parking brake and chock a wheel before performing this procedure.
If the vehicle is not secure and the shift lever is moved to N, the vehicle may suddenly move, ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Rear Power Seat Control System(for Third Row): Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE: When the fold seat control ECU (RH/LH seat) is replaced , it is necessary to perform initialization. Click here HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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