PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL
Note
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 (for 2AR-FE) | |
| Stop and Start System (for 2GR-FKS) | |
| Panoramic View Monitor System | |
| Power Door Lock Control System | |
| Power Door Lock Control System | |
| Power Slide Door System | |
| Power Back Door System |
PRECAUTIONS WHEN INSPECTING STOP AND START SYSTEM
Note
When the navigation system (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 navigation system (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
Tech Tips
If the vehicle has not been used for a long time, the battery charge may be low and stop and start control operation may be prohibited. In this case, recharge the battery, initialize the integrated current value* and drive the vehicle approximately 5 to 40 minutes until stop and start control operation is permitted.
*: Use the GTS to perform Integrated Current Value Initialization.
PRECAUTIONS WHEN CONNECTING/DISCONNECTING CABLE TO/FROM NEGATIVE BATTERY TERMINAL
Tech Tips
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 engine 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 navigation system (audio and visual system) when the engine switch is turned on (IG) for the first time after the battery has been reconnected, DTC P323A19 will be stored. Perform either of the following operations:
Turn the engine switch from on (IG) to off twice.
After turning the engine switch from on (IG) to off, clear the DTCs.
PRECAUTIONS AFTER CHARGING BATTERY
Tech Tips
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.
If the Data List item [Integrated Current] indicates 0 or more, initialization is not necessary.
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 conditions:
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.
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.
WHEN THE ENGINE STOP AND START ECU AND THE STARTER ASSEMBLY ARE REPLACED
Note
When replacing the engine stop and start ECU with a new one, make sure to download the previous status (number of starter operations) of the old engine stop and start ECU. After replacing the engine stop and start ECU, turn the engine switch on (IG) and wait 20 seconds, then confirm that "OK" is displayed for the Data List item [Oper Prohibition (O/P Air Bleeding)]. Then upload the previous status (number of starter operations) to the engine stop and start ECU, perform external backup boost converter (eco run vehicle converter assembly) existence learning and initialization and learning of the air conditioning information and deceleration sensor 0 point.
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 NO. 1 relay" and "ST NO. 2 relay" must be also replaced.
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.
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), deceleration sensor zero point calibration and CVT oil pressure calibration when replacing the ECM.
PRECAUTIONS FOR FOUR-WHEEL TOWING
Note
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 engine 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 (50 mile) 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.