HYBRID BATTERY SYSTEM VEHICLE CONTROL HISTORY

VEHICLE CONTROL HISTORY (HYBRID BATTERY SYSTEM)

1. Connect the GTS to the DLC3.

2. Turn the power switch on (IG).

3. Turn the GTS on.

4. Enter the following menus: Powertrain / HV battery / Utility / Vehicle Control History.

   
   
   1. Powertrain > HV Battery > Utility

      Tester Display
      Vehicle Control History (RoB)

   2. 
      
      1. 
         
   3. 
      
      10. 
          
   Tip:
   

   • If any of the conditions in the "Cause" column are met, data related to the Vehicle Control History item "Ready ON Prevention" will be stored in the battery ECU assembly.

   • When the Vehicle Control History item "Ready ON Prevention" is stored, the vehicle condition will be as shown in the Symptom column.

   Table 1. Ready ON Prevention

   Symptom	Cause	Vehicle Control History Data	Procedure
   Power switch does not turn on (READY).	Battery diagnosis request was ignored	Hybrid Battery Check Status Light Request If a value of "6" or higher is displayed for this item and no other conditions are preventing the power switch from being turned on (READY), the power switch cannot be turned on (READY) due to Battery Diagnosis not being performed and the vehicle being driven for a certain amount of time after "Have Traction Battery Inspected" was displayed on the multi-information display.	Perform Battery Diagnosis using the GTS.
   	Excessive engine cranking requests when HV battery cannot be used	Number of Cranking when No Hybrid Battery If a value higher than "15" is displayed for this item, the power switch cannot be turned on (READY) as engine cranking operation requests have exceeded a threshold when the HV battery could not be used.	Repair the malfunctions indicated by the output DTCs and clear the DTCs.
   	Extremely low HV battery temperature judgment	Hybrid Battery Extremely Low Temperature Judgment If "ON" is displayed for this item, the power switch cannot be turned on (READY) as the temperature of the HV battery is extremely low. The values of "HV Battery Temperature 1 to 6" and "Hybrid Battery Cooling Fan Intake Air Temperature 1" can be used as a reference.	Wait for the HV battery temperature to increase.
   	Incorrect battery ECU installation	Vehicle Model and HV Battery ECU Coordination READY ON prohibited when model compatibility judgment is "NG"	Install the specified battery ECU
   	Incorrect ECM is installed	Number of Hybrid Battery Mismatch Judgment with Engine ECU "0" is displayed for this item when it is normal. If a value of "3" or higher is displayed for this item, the power switch cannot be turned on (READY) due to an incorrect ECM having been installed.	Check the part number and replace the ECM with a correct one.
   	Incorrect HV battery is installed	Hybrid Battery Determination Signal 1 Hybrid Battery Determination Signal 2 "Hi" is displayed for both of these items when they are normal. If "Lo" is displayed for either item, the power switch cannot be turned on (READY) due to an incorrect HV supply stack sub-assembly having been installed.	Replace the HV supply stack sub-assembly with a correct one.
   The power switch is slow to turn on (READY).	High HV battery cell voltage	Hybrid Battery Stack 1 Cell Maximum Voltage Hybrid Battery Stack 2 Cell Maximum Voltage	Perform troubleshooting for any DTCs that are output.
   	Low HV battery cell voltage	Hybrid Battery Stack 1 Cell Minimum Voltage Hybrid Battery Stack 2 Cell Minimum Voltage	Perform troubleshooting for any DTCs that are output.

   Table 2. Hybrid Battery Cooling Performance Decrement

   Description	Vehicle Control History Data	Diagnostic Note
   History of poor HV battery cooling performance	Hybrid Battery Temperature 1 to 6 Hybrid Battery Cooling Fan Intake Air Temperature 1	Click here

VEHICLE CONTROL HISTORY DATA (HYBRID BATTERY SYSTEM)

1. Connect the GTS to the DLC3.

2. Turn the power switch on (IG).

3. Turn the GTS on.

4. Enter the following menus: Powertrain / HV battery / Utility / Vehicle Control History.

   
   
   1. Powertrain > HV Battery > Utility

      Tester Display
      Vehicle Control History (RoB)

   2. 
      
      1. 
         
   3. 
      
      10. 
          

5. Select a vehicle control history item to access the applicable data.

6. Check the Data recorded with the Vehicle Control History.

CHECK VEHICLE CONTROL HISTORY (SRS AIRBAG)