STOP AND START


  1. OUTLINE


    1. To achieve low emissions and enhanced fuel economy, the stop and start system has been developed.

    2. The stop and start system automatically stops the engine when the vehicle comes to a stop, such as when the vehicle stops at a red traffic light. When starting off, the engine is automatically restarted by simply depressing the clutch pedal, without requiring any extra activity from the driver.

      Figure 1. Models with Manual Transaxle

      A01KV4DE02

      Figure 2. Models with Multidrive/Continuously Variable Transaxle

      A01KVSDE05

    3. The stop and start system consists of an engine stop and start ECU with a built-in backup boost converter and a starter assembly.

    4. Based on signals from various sensors, switches, and the ECM, the engine stop and start ECU controls the stopping and starting of the engine.

    5. When the engine is stopped, the ECM stores the crankshaft angle. This is used to determine which cylinder to inject fuel into and ignite the next time the engine is restarted. This shortens the amount of time necessary to restart the engine.

    6. To allow management of the lifespan of the starter assembly, the engine stop and start ECU counts the number of times the starter operates. If the number exceeds a threshold, the ECU blinks the stop and start cancel indicator light to inform the driver of recommended replacement timing.

      Tech Tips

      After the starter assembly has been replaced, it is necessary to clear the record of the number of times that the starter assembly has been operated. For details, refer to the Repair Manual.

    7. During idling stop, the electric oil pump for CVT operates to ensure a stable CVT oil pressure, realizing a smooth start off.*

      *: Models with multidrive/continuously variable transaxle

    8. A hill-start assist function is provided in order to assist smooth starting on a slope while the engine is restarted after idling stop. The skid control ECU retains the brake hydraulic pressure until sufficient driving force is generated.*

      *: Models with multidrive/continuously variable transaxle

    9. Operating conditions of the stop and start system, such as the amount of time idling stop was performed, and various advice and warnings are provided using the multi-information display, stop and start indicator light and stop and start cancel indicator light in the combination meter assembly.

    10. An operation limit which prohibits stop and start system control under certain conditions is provided to protect the battery when a non-specified battery is used.

    11. Stop and start operation time when the air conditioning is operating can be changed between "Normal" and "Extended (the stop and start system has priority)" using the steering pad switch assembly, enabling the user to select the preferred setting.

      Figure 3. Models with Manual Transaxle

      A01KVSSE01

      Figure 4. Models with Multidrive/Continuously Variable Transaxle

      A01KV7ZE02

  2. PRECAUTION


    1. Ignition Switch Expressions


      1. The type of ignition switch used on this model differs depending on the specifications of the vehicle. The expressions listed in the table below are used in this section.

        Expression

        Ignition Switch

        (Position)

        Engine Switch

        (Condition)
        Ignition Switch off LOCK Off (Lock)
        Ignition Switch ACC ACC On (ACC)
        Ignition Switch ON ON On (IG)
        Engine Start START On (Start)