CHARGING SYSTEM Noise Occurs from V-ribbed Belt or Generator Assembly

DTC Code DTC Name
Noise Occurs from V-ribbed Belt or Generator Assembly

PROCEDURE

  1. CONFIRM PROBLEM SYMPTOM

    1. Confirm the problem symptom.

    Result

    Symptom

    Proceed to

    Noise occurs from V-ribbed belt assembly

    A

    Noise occurs from generator assembly

    B
    B

    CHECK FOR NOISE WHEN ROTOR IS TURNING FREELYClick here

    A

  2. CHECK V-RIBBED BELT FOR WEAR

    1. Check the V-ribbed belt for wear or damage.

      OK

      The V-ribbed belt is not worn or damaged.

    Result

    Result

    OK

    NG
    NG

    REPLACE V-RIBBED BELT

    Click hereClick here

    OK

  3. CHECK GENERATOR WITH CLUTCH PULLEY FOR WEAR

    1. Check the generator with clutch pulley grooves for wear or damage.

      OK

      The generator with clutch pulley grooves are not worn or damaged.

    Result

    Result

    OK

    NG
    NG

    REPLACE GENERATOR WITH CLUTCH PULLEY

    Click here

    OK

  4. CHECK FOR NOISE WHILE CLUTCH PULLEY IS OPERATING

    1. Start the engine and check the generator with clutch pulley for looseness.

      OK

      The generator with clutch pulley with clutch is not loose.

    Result

    Result

    OK

    NG
    NG

    TIGHTEN GENERATOR WITH CLUTCH PULLEY TO SPECIFIED TORQUE

    OK

  5. INSPECT GENERATOR WITH CLUTCH PULLEY (UNIT INSPECTION)

    1. Remove the generator assembly.

      Click here

    2. Check the installation condition of the generator pulley cap.

      OK

      The generator pulley cap is not loose or missing.

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

      OK

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

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

      OK

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

    5. A288972

      Turn the generator with clutch pulley clockwise and counterclockwise by hand and check for noise.

      OK

      Noise does not occur when turned in both directions.

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

      OK

      The generator with clutch pulley does not have runout.

    7. A288971

      Hold the generator rotor assembly (fan) in the generator assembly with a screwdriver, and check that the generator with clutch pulley locks when turned clockwise and turns freely when turned counterclockwise.

      OK

      The generator with clutch pulley locks when turned clockwise and turns freely when turned counterclockwise.

    Result

    Result

    OK

    NG
    OK

    INSPECT PULLEY OTHER THAN GENERATOR ASSEMBLY PULLEY

    NG

    REPLACE GENERATOR WITH CLUTCH PULLEY

    Click here

  6. CHECK FOR NOISE WHEN ROTOR IS TURNING FREELY

    1. Perform a road test and check that noise does not occur when decelerating.

      OK

      Noise does not occur.

    2. Stop the engine and check that generator with clutch pulley noise does not occur as the engine stops.

      OK

      Noise does not occur.

    Result

    Result

    OK

    NG
    NG

    REPLACE GENERATOR PULLEY WITH CLUTCH

    Click here

    OK

  7. CHECK ENGAGEMENT OF GENERATOR WITH CLUTCH PULLEY

    1. Remove the generator assembly.

      Click here

    2. Hold the generator rotor assembly (fan) in the generator assembly with a screwdriver, and check that the generator with clutch pulley locks when turned from counterclockwise (free turning direction) to clockwise (locking direction).

      OK

      The generator with clutch pulley locks.

    Result

    Result

    OK

    NG
    OK

    REPAIR OR REPLACE GENERATOR ASSEMBLY

    Click here

    NG

    REPLACE GENERATOR WITH CLUTCH PULLEY

    Click here