СИСТЕМА АВТОМАТИЧЕСКОЙ ТРАНСМИССИИ (для моделей с 3ZR-FE) ТАБЛИЦА РАБОТЫ В АВАРИЙНОМ РЕЖИМЕ

  1. FAIL-SAFE CHART

    The fail-safe function minimizes the loss of ECT functions when a malfunction occurs in a sensor or solenoid.

    1. Automatic Transaxle Fluid (ATF) temperature sensor:

      When the ATF temperature sensor has a malfunction, up-shift to 4th gear is prohibited.

    2. Counter gear speed sensor NC (Speed sensor NC):

      When the counter gear speed sensor has a malfunction, up-shift to 4th gear is prohibited.

    3. Shift solenoid valve DSL:

      When the solenoid valve DSL has a malfunction, the current to the solenoid valve is stopped.

      This stops lock-up control, and then fuel economy decreases.

    4. Shift solenoid valve SL1, SL2 and S4:

      If any of the shift solenoid valve circuits develops an open or short, the ECM turns the other shift solenoid valves "ON" and "OFF" in order to shift into the gear positions shown in the table below.

      In case of a short circuit, the ECM stops sending the current to the short-circuited solenoid.

    Normal Shift Solenoid Valve SL1 Shift Solenoid Valve SL2 Shift Solenoid Valve S4
    Gear Solenoid Valve Gear Solenoid Valve Gear Solenoid Valve Gear Solenoid Valve
    SL1 SL2 S4 SL1 SL2 S4 SL1 SL2 S4 SL1 SL2 S4
    1st ON ON OFF 2nd X ON OFF 3rd

    ON

    OFF

    X OFF 1st ON ON X
    2nd OFF ON OFF 2nd X ON OFF 3rd OFF X OFF 2nd OFF ON X
    3rd OFF OFF OFF 3rd X

    OFF

    ON

    OFF

    ON

    3rd OFF X OFF 3rd OFF OFF X
    4th OFF OFF ON 3rd X

    OFF

    ON

    ON 4th OFF X ON 3rd OFF OFF X
    Shift Solenoid Valve SL1 and SL2 Shift Solenoid Valve SL1 and S4 Shift Solenoid Valve SL2 and S4 Shift Solenoid Valve SL1, SL2 and S4
    Gear Solenoid Valve Gear Solenoid Valve Gear Solenoid Valve Gear Solenoid Valve
    SL1 SL2 S4 SL1 SL2 S4 SL1 SL2 S4 SL1 SL2 S4
    3rd X X OFF 2nd X ON X 3rd

    ON

    OFF

    X X 3rd X X X
    3rd X X OFF 2nd X ON X 3rd OFF X X 3rd X X X
    3rd X X OFF 2nd X

    OFF

    ON

    X 3rd OFF X X 3rd X X X
    4th X X ON 2nd X

    OFF

    ON

    X 3rd OFF X X 3rd X X X

    Tech Tips

    • ↓: The condition during normal operation is shown above the "↓".

    • ↓: The condition during fail-safe mode is shown beneath the "↓".