STOP AND START STOP AND START SYSTEM PRECAUTION
PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL
- NOTICE:
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When the cable is disconnected from the negative (-) battery terminal, initialize the following system after the cable is reconnected.
System Name See Procedure Stop and Start System ( 
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Lane Control System (for Gasoline Model) Pre-collision System (for Gasoline Model)
IGNITION SWITCH EXPRESSION
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The type of ignition switch used on this model differs according to 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)
PRECAUTIONS WHEN INSPECTING STOP AND START SYSTEM
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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 ignition 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.
PRECAUTIONS WHEN BATTERY IS DISCHARGED AFTER LEAVING VEHICLE FOR A LONG TIME
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If the vehicle has not been driven for a long time, the battery charge will be low and stop and start control operation will be prohibited. If the integrated current value does not exceed the threshold*1 even though the battery has been charged until the charging current decreases to 5 A or less, perform an integrated current value initialization*2 and drive the vehicle for approximately 5 to 40 minutes until the stop and start system operates.
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*1: Refer to System Description for details on the integrated current threshold.
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*2: Use the GTS to perform Integrated Current Value Initialization.
PRECAUTIONS WHEN CONNECTING/DISCONNECTING CABLE TO/FROM NEGATIVE BATTERY TERMINAL
- HINT:
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If the cable is disconnected from the battery terminal, stop and start control is prohibited until refresh charge is completed.
In this case, let the vehicle idle to complete the refresh charge. The refresh charge is complete when the Data List item Status of Battery Charge Control changes from "Refresh Charge Mode". (Usually, idling the engine for 5 to 60 minutes with the battery fluid temperature at 11°C (52°F) or higher, the refresh charge will be completed.)
·If the GTS is not available and the Data List item Status of Battery Charge Control cannot be checked, charge the battery by idling the engine for approximately 5 to 60 minutes or driving the vehicle, and then drive the vehicle and check that stop and start control operates.
If the engine is started with the hood open, the system determines that a jump start has occurred. Therefore, make sure that the hood is closed before starting the engine and driving the vehicle.
·After the refresh charge completes, turn the ignition switch off, wait for at least 30 seconds, and then start the engine again. If the vehicle enters refresh charge mode again while the engine is idling, the initial refresh charge did not properly complete, so wait for the refresh charge to complete.
If power is not supplied to the audio and visual system when the ignition switch is turned to ON for the first time after the battery has been reconnected, DTC P323A19 will be stored. Perform either of the following operations:
Turn the ignition switch from ON to off twice.
After turning the ignition switch from ON to off, clear the DTCs.
- Powertrain > Stop and Start > Clear DTCs
- 50002 392
PRECAUTIONS AFTER CHARGING BATTERY
- HINT:
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If the battery is replaced or charged with the cables connected after stop and start control has been prohibited due to a low battery charge, perform the integrated current value initialization using the GTS.
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If the Data List item "Integrated Current" indicates 0 or more, initialization is not necessary.
IF THE ENGINE FAILS TO RESTART FROM IDLING STOP
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If the engine fails to restart when stopped by stop and start control, the brake actuator may be activated.
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Brake actuator activation conditions:
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When the engine fails to restart when 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.
- HINT:
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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.
WHEN THE ENGINE STOP AND START ECU AND THE STARTER ASSEMBLY ARE REPLACED
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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.
·When the starter assembly is replaced, the number of starter operations stored in the engine stop and start ECU must be reset.
·When the starter assembly is replaced, "ST relay" must be also replaced.
PRECAUTIONS WHEN REPLACING ECM
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When the ECM is replaced on a vehicle with a non-specified battery, it is necessary to perform battery type switching.
·Before replacing the ECM, refer to Service Bulletin (for Immobiliser System).
·Perform Registration (VIN registration or frame number registration) after replacing the ECM.
·Make sure to perform Reset Memory (CVT initialization), when replacing the ECM.
PRECAUTIONS FOR FOUR-WHEEL TOWING
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When towing the vehicle, its four wheels must be lifted.
If the vehicle is to be towed with all four wheels on the ground, turn the ignition switch off and then ON 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.