Lexus ES: Utility

NOTICE:

• If the HV battery or an HV supply stack sub-assembly has been replaced, make sure to perform the following utilities in the following order: "Battery Status Info Update", "Prediagnostic Battery Charge" then "Battery Diagnosis".
• "Have Traction Battery Inspected" is displayed, perform both "Prediagnostic Battery Charge" and "Battery Diagnosis" to diagnose the extent of deterioration of each HV battery cell.
• "Have Traction Battery Inspected" is cleared after both "Prediagnostic Battery Charge" and "Battery Diagnosis" are performed and "There is no need to replace HV battery." is displayed.
• After the "Have Traction Battery Inspected" is displayed, if the traction battery is used continually without performing "Prediagnostic Battery Charge" and "Battery Diagnosis" for a few weeks*, use of the HV battery (input/output voltage) will be limited. If it is used more, the power switch on (READY) operation will be disabled.

  *: Timing may vary depending on vehicle usage.

• If the power switch cannot be turned on (READY), perform "Temporary Vehicle Start Up", "Prediagnostic Battery Charge" and "Battery Diagnosis".

HINT:

• With "All Readiness", you can check whether or not the DTC judgment has been completed by using the Techstream.
• You should check "All Readiness" after simulating malfunction symptoms or for validation after finishing repairs.

NOTICE:

• If the fuel level warning light is illuminated, add enough fuel that the light turns off, and then perform "Prediagnostic Battery Charge".
• Perform HV battery charging with appropriate HV battery temperature, between 0°C (32°F) and 47°C (116.6°F).
• Do not perform prediagnostic battery charge while the master warning light is illuminated.
• Perform prediagnostic battery charge with the HV battery installed correctly.
• Do not perform "Prediagnostic Battery Charge" while changing from inspection mode to another mode.

HINT:

• If the HV battery temperature is low (below 0°C (32°F)), drive the vehicle until the temperature reaches 0°C (32°F) or more and perform "Prediagnostic Battery Charge" again.
• If the HV battery temperature is high (above 47°C (116.6°F)), leave the vehicle with the power switch on (READY) and the shift lever in P. Wait until the HV battery temperature drops to 42°C (107.6°F) or lower, and then perform "Prediagnostic Battery Charge" again.
• If the HV battery temperature is low (below 0°C (32°F)) and the power switch cannot be turned on (READY), place the vehicle in a warm environment (20°C (68°F) or higher). Wait until the HV battery temperature reaches 0°C (32°F) or higher, and then perform "Prediagnostic Battery Charge" again.

HINT:

• Time required for "Prediagnostic Battery Charge" varies by the SOC of the HV battery when the charging is started.
• To suspend prediagnostic battery charge, press "Exit" and turn the power switch off.

1. Check that the shift lever in P. (Do not depress the accelerator pedal.)
2. While depressing the brake pedal with your left foot, move the shift lever to N and fully depress the accelerator pedal three times with your right foot.
3. Move the shift lever to P, and then fully depress the accelerator pedal twice.
4. While depressing the brake pedal with your left foot, move the shift lever to N and fully depress the accelerator pedal three times with your right foot.
5. Move the shift lever to P, and then fully depress the accelerator pedal twice.

HINT:

• The engine starts without the READY indicator illuminated.
• If the SOC indicator of the HV battery shows 6 segments or more, charging of the vehicle is not necessary. Therefore, the engine will not start. In this case, perform "Battery Diagnosis".

HINT:

• Time required for "Prediagnostic Battery Charge" varies by the SOC of the HV battery when the charging is started.
• To suspend prediagnostic battery charge, turn the power switch off.

NOTICE:

• Perform this diagnosis with the engine coolant at -10°C (14°F) or more.
• Perform battery diagnosis with appropriate HV battery temperature (between 0°C (32°F) and 47°C (116.6°F)).
• Do not perform battery diagnosis while the master warning light is illuminated.
• Perform battery diagnosis with the HV battery installed correctly.
• Do not perform battery diagnosis while changing from inspection mode to another mode.
• Make sure to turn the power switch off after battery diagnosis to prevent the auxiliary battery from being discharged.

HINT:

• If the HV battery temperature is low (below 0°C (32°F)), drive the vehicle until the temperature reaches 0°C (32°F) or more and perform "Battery Diagnosis" again.
• If the HV battery temperature is high (above 47°C (116.6°F)), leave the vehicle with the power switch on (READY) and the shift lever in P. Wait until the HV battery temperature drops to 42°C (107.6°F) or lower, and then perform "Battery Diagnosis" again.
• If the HV battery temperature is low (below 0°C (32°F)) and the power switch cannot be turned on (READY), place the vehicle in a warm environment (20°C (68°F) or higher). Wait until the HV battery temperature reaches 0°C (32°F) or higher, and then perform "Battery Diagnosis" again.

HINT:

• "Progress" is displayed as a reference to the estimated time to complete the diagnosis.
• To suspend battery diagnosis, press "Exit" and turn the power switch off.

NOTICE:

• It takes about 40 to 60 minutes for battery diagnosis to complete. As the diagnosis may be stopped due to an error, make sure to check the diagnosis status every 10 minutes.
• If a DTC is stored during "Battery Diagnosis", the master warning light will turn on and battery diagnosis.

NOTICE:

• The IG off timer function automatically turns the power switch off 10 minutes after the battery diagnosis completes. Make sure to confirm the diagnosis result as soon as possible.
• To prevent the auxiliary battery from being depleted, make sure to turn the air conditioning system related switches, headlight dimmer switch, hazard warning signal switch assembly and power switch off as soon as "Battery Diagnosis" is complete.

HINT:

• If the diagnosis result is "Replace the HV battery", replace the HV battery.
• After performing "Battery Diagnosis", the trip will be determined to have ended when 60 seconds have elapsed since the power switch was turned off. If the power switch is attempted to be turned on (READY) before 60 seconds have elapsed since the power switch was turned off, it may not be able to be turned on (READY).

1. Check that the shift lever in P. (Do not depress the accelerator pedal.)
2. While depressing the brake pedal with your left foot, move the shift lever to N and fully depress the accelerator pedal three times with your right foot.
3. Move the shift lever to P, and then fully depress the accelerator pedal once.
4. While depressing the brake pedal with your left foot, move the shift lever to N and fully depress the accelerator pedal three times with your right foot.
5. Move the shift lever to P, and then fully depress the accelerator pedal once.

NOTICE:

• It takes about 40 to 60 minutes for battery diagnosis to complete. As the diagnosis may be stopped due to an error, make sure to check the diagnosis status every ten minutes.
• If a DTC is stored during "Battery Diagnosis", the master warning light will turn on and stop the charging.

HINT:

• To suspend battery diagnosis, turn the power switch off.
• If the diagnosis conditions are not met, the power switch will turn off immediately after it is turned on (READY). In this case, "Voltage too low", "HV battery connection malfunction" or "Battery temperature out of the specified range" will be the reason for diagnosis suspension. Troubleshoot the suspected area in accordance with instructions in the "Procedure when battery diagnosis is suspended" table. Procedure when battery diagnostic is suspended

  Reason of Diagnosis Suspension (Related Condition)	Procedure
  Voltage too low	Turn the power switch off and then perform "Prediagnostic Battery Charge" again.
  Unable to complete the current sensor offset learning	Turn the power switch off and then perform "Battery Diagnosis" again. (If diagnosis suspension occurs again, inspect the current sensor.)
  The power switch was turned off.	Turn the power switch off and then perform "Prediagnostic Battery Charge" again.
  Shift state park (P) is not selected.	Move the shift lever to P.
  HV battery connection malfunction	Confirm the connection condition of the HV battery.
  Current out of the specified range (1.79 to 10 A)	Confirm that the vehicle satisfies the "Vehicle Condition" specified in the previous table. If accessories are connected to the vehicle, turn them on/off or disconnect them from the vehicle.
  Battery temperature out of the specified range (0°C (32°F) to 47°C (116.6°F))	Read the temperatures listed in "Hybrid/EV Battery Temperature 1 to 6". When the HV battery temperature is below 0°C (32°F): Drive the vehicle until the temperature reaches 0°C (32°F) or more. When the HV battery temperature is above 47°C (116.6°F): Leave the vehicle with the power switch on (READY) and the shift lever in P and wait until the HV battery temperature drops to 42°C (107.6°F) or lower.
  Time-out	If the power switch is turned off by the time-out function, perform "Prediagnostic Battery Charge" again.
  Low auxiliary battery voltage	Inspect the auxiliary battery and hybrid vehicle converter function.
  HV battery malfunction	Check for hybrid battery system related DTCs and perform troubleshooting. After checking that the master warning light has turned off, perform "Prediagnostic Battery Charge" again.
  System malfunction

1. After the power switch has been automatically turned off, turn the power switch on (IG).
2. Check the multi-information display.

   Multi-information Display	Diagnosis Result
   "Have Traction Battery Inspected" is displayed.	Replace the HV battery or "Battery Diagnosis" suspended due to an error
   "Have Traction Battery Inspected" is not displayed.	There is no need to replace HV battery.

HINT:

• As "Battery Diagnosis" discharges the HV battery to a low SOC, if the power switch is turned on immediately after the "Battery Diagnosis" is completed, DTC P300000 or P300016 may be stored. For this reason, leave the vehicle as is for 5 hours to allow the HV battery SOC to recover or charge the HV battery using the THS Charger. Then, clear the DTCs and check that no DTCs are output. If DTC P300000 or P300016 is output again, perform troubleshooting for the DTC.
• If "Have Traction Battery Inspected" is displayed, "Battery Diagnosis" may have been suspended due to a malfunction. Perform "Prediagnostic Battery Charge" and "Battery Diagnosis" using the Techstream.
• By performing "Battery Diagnosis" using the Techstream, the HV supply stack sub-assembly to be replaced can be determined.

HINT:

• If the diagnosis result is "Replace the HV battery", replace the HV battery.
• After performing "Battery Diagnosis", the trip will be determined to have ended when 60 seconds have elapsed since the power switch was turned off. If the power switch is attempted to be turned on (READY) before 60 seconds have elapsed since the power switch was turned off, it may not be able to be turned on (READY).

NOTICE:

• Do not perform temporary vehicle start up while the master warning light is illuminated.
• Perform only when "Vehicle Start Disabled Until Traction Battery Inspected" is displayed on the multi-information display and the vehicle cannot be started.
• "Vehicle Start Disabled Until Traction Battery Inspected" is not cleared even after "Temporary Vehicle Start Up" is performed.

HINT:

• If the power switch is turned off after "Temporary Vehicle Start Up", the vehicle will not be able to start again.
• The Techstream can be disconnected after turning the power switch on (READY).

 Problem Symptoms Table

 Terminals Of Ecu

 Diagnosis System

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