LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 42 (Fuel System - Service Information (2 Of 2)) >> FUEL PUMP (for THS-HEV Model) >> Reassembly [10/2022 - ] >> Procedure

Reassembly [10/2022 - ]: Procedure

WARNING: This page is about a different car, the 2025 Lexus RX 450h+, 2025 Lexus RX 350h, 2024 Lexus RX 450h+, 2024 Lexus RX 350h, and 2023 Lexus RX 350h. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSTALL FUEL PUMP 
    1. GTY1131803Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 O-ring *2 Fuel Pump Spacer
      1. Apply gasoline to a new O-ring. Then install the O-ring and fuel pump spacer to the fuel pump.
      2. Install the fuel pump to the fuel suction plate sub-assembly.
        NOTE:

        Make sure that the O-ring is not cut or pinched during installation.

  2. INSTALL NO. 2 FUEL SUCTION SUPPORT 
  3. INSTALL FUEL SUB-TANK SUB-ASSEMBLY 
    1. GTY1133770Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Protrusion *b Installation Hole
      Slide - -
      1. Engage the 4 claws to install the fuel sub-tank sub-assembly to the fuel suction plate sub-assembly.
      2. Align the protrusion of the fuel sub-tank sub-assembly with the installation hole of the fuel suction plate sub-assembly and then slide the fuel suction plate sub-assembly to install it to the fuel sub-tank sub-assembly.
  4. INSTALL FUEL PUMP HARNESS 
    1. GTY1132591Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Engage the clamp to install the fuel pump harness to the fuel suction tube with pump and gauge assembly.
        NOTE:
        • Do not damage the wire harness.
        • When engaging each wire harness to the clamp, engage one wire at a time.
      2. Engage the claw to connect the ground terminal of the fuel pump harness.
      3. Check the connection state of the fuel pump harness.

        Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        Fuel pump body - Ground terminal of the fuel pump harness Always Below 50 Ω
      4. If the result is not as specified, reconnect the fuel pump harness to the fuel pump so that the ground terminal of the fuel pump harness is securely connected to the fuel pump body.
      5. Connect the 3 fuel pump harness connectors.
  5. INSTALL FUEL SENDER GAUGE ASSEMBLY 
    See step  1