STOP AND START SYSTEM REGISTRATION

PROCEDURE

ECU EXCHANGE

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, upload the number of starter operations to the new engine stop and start ECU using the GTS.
1. Connect the GTS to the DLC3.
2. Turn the ignition switch to ON.
3. Enter the following menus: Powertrain / Stop and Start / Utility / ECU Exchange.
  
  Powertrain > Stop and Start > Utility
  
  Tester Display
  
  ECU Exchange
4. According to the display on the GTS, download the previous status (the number of starter operations) from the old engine stop and start ECU to the GTS.
5. Replace the engine stop and start ECU.
  
  Click here
6. According to the display on the GTS, upload the previous status (the number of starter operations) from the GTS to the new engine stop and start ECU.
CLEAR NUMBER OF STARTER OPERATIONS
Note
- After the starter assembly is replaced, be sure to clear the number of starter operations stored in the engine stop and start ECU.
- When the starter assembly is replaced, ST relay must be also replaced.
1. Connect the GTS to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the GTS on.
4. Enter the following menus: Powertrain / Stop and Start / Utility / Starter Exchange.
  
  Powertrain > Stop and Start > Utility
  
  Tester Display
  
  Starter Exchange
RESET AIR CONDITIONING INFORMATION

Note

After replacing the engine stop and start ECU or air conditioning amplifier assembly, initialization of the air conditioning information in the engine stop and start ECU is necessary.
1. Connect the GTS to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the GTS on.
4. Enter the following menus: Powertrain / Stop and Start / Utility / Reset A/C Information.
  
  Powertrain > Stop and Start > Utility
  
  Tester Display
  
  Reset A/C Information
LEARNING AIR CONDITIONING INFORMATION

Tech Tips

When initialization of the air conditioning information is complete, air conditioning information learning is automatically performed. If the learning cannot be performed properly, inspect the CAN communication system.
CLEAR THE ZERO POINT CALIBRATION DATA
Note
- After replacing the engine stop and start ECU or airbag ECU assembly, perform deceleration sensor zero point clear and calibration.
- Once the zero point is stored, it cannot be overwritten until the data is cleared. Be sure to perform zero point clear and calibration after replacing the airbag ECU assembly.
1. Turn the ignition switch off.
2. Move the shift lever to neutral and apply the parking brake.
3. Connect the GTS to the DLC3.
4. Turn the ignition switch to ON.
  
  Tech Tips
  
  Do not start the engine.
5. Turn the GTS on.
6. Enter the following menus: Powertrain / Stop and Start / Utility / Deceleration Sensor Zero Point Clear.
  
  Powertrain > Stop and Start > Utility
  
  Tester Display
  
  Deceleration Sensor Zero Point Clear
  
  Note
  
  When the deceleration sensor zero point is cleared, the system information stored in the engine stop and start ECU is also cleared. If the vehicle is driven for 5 seconds or more at 3 km/h (2 mph) or more in this condition, the engine stop and start ECU will store DTC P1589 and blink the stop and start cancel indicator light.
7. Turn the ignition switch off.
PERFORM ZERO POINT CALIBRATION OF THE DECELERATION SENSOR

Note

Park the vehicle on a level surface (grade: +/-1%). Do not shake the vehicle or open/close any of the doors during zero point calibration. To avoid vibration caused by the engine idling, do not start the engine.
1. Connect the GTS to the DLC3.
2. Check that the shift lever is in neutral.
3. Turn the ignition switch to ON.
  
  Tech Tips
  
  Do not start the engine.
4. Check that the parking brake is applied and the brake warning light is illuminated.
5. Turn the GTS on.
6. Enter the following menus: Powertrain / Stop and Start / Utility / Deceleration Sensor Zero Point Calibration.
  
  Powertrain > Stop and Start > Utility
  
  Tester Display
  
  Deceleration Sensor Zero Point Calibration
  
  Tech Tips
  
  If DTC P1589 is stored, the stop and start cancel indicator light will blink.
7. While keeping the vehicle stationary, follow the prompts on the GTS screen. Check that "Complete" is displayed on the GTS screen.
  
  Note
  
  If zero point calibration fails, perform the registration procedure again from "CLEAR THE ZERO POINT CALIBRATION DATA".
CLEAR THE INTEGRATED CURRENT VALUE

Tech Tips

After charging the battery or replace battery, perform the integrated current value initialization.

If the Data List item "Integrated Current" indicates 0 or more, initialization is not necessary.
1. Connect the GTS to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the GTS on.
4. Enter the following menus: Powertrain / Stop and Start / Utility / Integrated Current Value Initialization.
  
  Powertrain > Stop and Start > Utility
  
  Tester Display
  
  Integrated Current Value Initialization
SWITCH BATTERY TYPE

Note

When the ECM is replaced on a vehicle with a non-specified battery, it is necessary to perform battery type switching.
1. Check whether the battery is specified or not specified.
2. Connect the GTS to the DLC3.
3. Turn the ignition switch to ON.
  
  Tech Tips
  
  Do not start the engine.
4. Turn the GTS on.
5. Enter the following menus: Powertrain / Stop and Start / Data List / Battery Type.
  
  Tech Tips
  
  Check the battery type (Specified/Other) stored by the ECU.
  
  Powertrain > Stop and Start > Data List
  
  Tester Display
  
  Battery Type
6. If the battery installed does not match the battery stored by the ECM, switch to the battery type for the installed battery.
  1. Enter the following menus: Powertrain / Engine and ECT / Utility / Switch Battery Type.
    
    Powertrain > Engine and ECT > Utility
    
    Tester Display
    
    Switch Battery Type