Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Charging Failure

PROCEDURE

(a) Start the engine and visually check that the generator rotor assembly (fan) in the generator assembly is operating.

OK:

The generator rotor assembly (fan) is operating.

NG

REPLACE GENERATOR PULLEY WITH CLUTCH

OK

(a) Remove the generator assembly.

Generator assembly (for 150 A Type): Click here

Generator assembly (for 180 A Type): Click here

(b) Check the installation condition of the generator pulley cap.

OK:

The generator pulley cap is not loose or missing.

(c) Check for forming of particles due to friction (for dry type pulley) or grease leaks (for wet type pulley).

OK:

There are no large amounts of particles (for dry type pulley) or grease leaks (for wet type pulley).

(d) Check the generator pulley with clutch for misalignment (interference with the generator assembly).

OK:

The generator pulley with clutch is not misaligned (no interference with the generator assembly).

(e) Turn the generator pulley with clutch clockwise and counterclockwise by hand and check for noise. OK: Noise does not occur when turned in either direction.

(f) Turn the generator pulley with clutch clockwise and counterclockwise by hand and visually check for runout.

OK:

The generator pulley with clutch does not have runout.

(g) Hold the generator rotor assembly (fan) in the generator assembly with a screwdriver with its tip wrapped with protective tape, and check that the generator pulley with clutch locks when turned clockwise and turns freely when turned counterclockwise. OK: The generator pulley with clutch locks when turned clockwise and turns freely when turned counterclockwise.

*a Protective Tape

OK

REPAIR OR REPLACE GENERATOR ASSEMBLY

NG

REPLACE GENERATOR PULLEY WITH CLUTCH