STOP AND START SYSTEM PRECAUTION


  1. PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL

    Note

    When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected.

    System Name See Procedure
    Stop and Start System

    Click here

    Power Assist Monitor System (w/ Parallel Parking Assist Function)
    Power Assist Monitor System (w/o Parallel Parking Assist Function)
    Power Trunk Lid System

  2. PRECAUTIONS WHEN INSPECTING STOP AND START SYSTEM

    Note

    When the audio and visual system volume is high, a fail-safe function may operate in order to maintain the operation of stop and start control. The fail-safe function is canceled when the engine switch is turned off. Using the same power source for the audio and visual system and other systems allows the fail-safe functions to operate more precisely.

  3. PRECAUTIONS WHEN BATTERY IS DISCHARGED AFTER LEAVING VEHICLE FOR A LONG TIME

    Tech Tips

    If the vehicle has not been used for a long time, the battery charge will be low and stop and start control operation will be prohibited. In this case, recharge the battery, initialize the integrated current value* and drive the vehicle approximately 5 to 40 minutes until refresh charge is completed and stop and start control operation is permitted.

    *: Use the GTS to perform Integrated Current Value Initialization Click here.

  4. PRECAUTIONS WHEN CONNECTING/DISCONNECTING CABLE TO/FROM NEGATIVE BATTERY TERMINAL

    Tech Tips

    If the cable is disconnected from the negative (-) battery terminal, stop and start control is prohibited until refresh charge is completed. In this case, drive the vehicle approximately 5 to 60 minutes until refresh charge is completed and stop and start control operation is permitted.


    1. If power is not supplied to the audio & visual system when the engine switch is on (IG) for the first time after the battery has been reconnected, DTC B22C0 will be stored. Perform either of the following operations:


      1. Turn the engine switch from on (IG) to off twice.

      2. After turning the engine switch from off to on (IG), clear the DTCs.

  5. PRECAUTIONS AFTER CHARGING BATTERY

    Tech Tips

    If the battery is charged with the cables connected after stop and start control has been prohibited due to low battery charge, perform the Integrated Current Value Initialization using the GTS Click here.

    If the Data List item "Integrated Current" indicates 0 or more, initialization is not necessary.

  6. IF THE ENGINE FAILS TO RESTART FROM IDLING STOP

    Note

    If the engine fails to restart when stopped by stop and start control, the brake actuator may be activated.

    Brake actuator activation stopped condition:


    • When the engine fails to restart from stopped by stop and start control.

    • When the brake booster vacuum is insufficient.

    • When the vehicle speed is 3 km/h (2 mph) or more and the brake pedal is depressed*.

    *: When the engine is not running.

    Tech Tips


    • When the engine fails to restart when stopped by stop and start control and the brake booster vacuum is insufficient, the brake actuator is activated to ensure the braking force.

    • When the brake actuator is activated, sound and vibration may be generated. This is not due to malfunction of the stop and start system or the vehicle.

  7. WHEN THE ENGINE STOP AND START ECU AND THE STARTER ASSEMBLY ARE REPLACED

    Note


    • When the engine stop and start ECU is replaced, it is necessary to read the number of starter operations before replacement, and to store this number in the new engine stop and start ECU. Moreover, initialization/learning of the air conditioning information and initialization/learning of the deceleration sensor 0 point are also required Click here.

    • When the starter assembly is replaced, "ST relay" and "ST NO. 2 relay" must be also replaced.

    • When the starter assembly is replaced, the number of starter operations stored in the engine stop and start ECU must be reset Click here.

  8. PRECAUTIONS WHEN REPLACING ECM

    Note

    When the ECM is replaced on a vehicle with a non-specified battery, it is necessary to perform battery type switching Click here.

  9. NOTE REGARDING PROHIBITION OF TOWING TRACTION

    Note


    • When towing the vehicle, its front wheels or four wheels must be lifted. If the vehicle is to be towed with all four wheels on the ground, turn the engine switch off and then on (IG) without starting the engine. Only tow the vehicle at speeds below 30 km/h (19 mph) for distances of less than 80 km in a forward direction.

    • If the towing speed or distance exceeds the above limits, or the vehicle is towed backward, the transaxle and stop and start system components may be damaged.