Lexus ES: Utility

UTILITY

ALL READINESS

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

Powertrain > Motor Generator > Clear DTCs

(e) Turn the power switch off and wait for at least 2 minutes.

(f) Turn the power switch on (IG).

(g) Turn the Techstream on.

(h) Perform the DTC confirmation driving pattern to run the DTC judgment.

(i) Enter the following menus: Powertrain / Motor Generator / Utility / All Readiness.

Powertrain > Motor Generator > Utility

Tester Display
All Readiness

(j) Input the DTCs to be confirmed.

(k) Check the DTC judgment result.

Techstream Display	Description
NORMAL	DTC judgment completed System normal
ABNORMAL	DTC judgment completed System abnormal
INCOMPLETE	DTC judgment not completed Perform the driving pattern
N/A	Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

If the judgment result shows INCOMPLETE or N/A, perform the DTC confirmation driving pattern again.

(l) Turn the power switch off.

CHECK FOR DIAGNOSIS RELATED INFORMATION

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Motor Generator / Utility / Diagnosis Related Information.

Powertrain > Motor Generator > Utility

Tester Display
Diagnosis Related Information

(e) Check the diagnosis related information and freeze frame data, and then write them down.

CLEAR DIAGNOSIS RELATED INFORMATION

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Motor Generator / Clear DTCs.

Powertrain > Motor Generator > Clear DTCs

(e) Clear the diagnosis related information and freeze frame data.

RESOLVER INITIALIZATION

Perform resolver initialization and/or learning according to the following table:

Part Replaced or Procedure Performed	Learning	Initialization
Inverter with converter assembly	○	-
Hybrid vehicle transaxle assembly	○	○*1

*1: If it is necessary to replace the hybrid vehicle transaxle assembly, make sure to perform resolver initialization before starting work.

HINT:

After performing resolver initialization, "Learning not completed" will be displayed on the multi-information display when the power switch is turned on (READY).

Related Data List

Data List	Detail
Generator Resolver Offset Value	Displays the resolver learning value. Displays 0 after the inverter with converter assembly has been replaced (and learning has not been performed) or resolver initialization has been performed. Displays the resolver installation offset amount after resolver learning is performed.
Generator Resolver Offset Complete Status	Displays the completion status of the resolver learning. Displays ON when resolver learning is complete.
Motor Resolver Offset Value	Displays the resolver learning value. Displays 0 after the inverter with converter assembly has been replaced (and learning has not been performed) or resolver initialization has been performed. Displays the resolver installation offset amount after resolver learning is performed.
Motor Resolver Offset Complete Status	Displays the completion status of the resolver learning. Displays ON when resolver learning is complete.

(a) Initialize the learned value.

(1) Turn the power switch off and wait for 2 minute or more.

(2) Connect the Techstream to the DLC3.

(3) Turn the power switch on (IG).

(4) Turn the Techstream on.

(5) Enter the following menus: Powertrain / Motor Generator / Utility / Resolver Learning/Initialization.

Powertrain > Motor Generator > Utility

Tester Display
Resolver Learning/Initialization

(6) According to the display on the Techstream, select "Initialization" to perform resolver initialization.

NOTICE:

Do not turn the power switch on (READY) while performing resolver initialization. If the power switch is turned on (READY) and the engine starts, generator resolver learning will be performed and resolver initialization will be canceled.

(7) Check that the generator resolver learning incomplete message is displayed on the multi-information display.

(8) Turn the power switch off and wait for 1 minute or more.

(9) Turn the power switch on (IG).

RESOLVER LEARNING

Perform resolver initialization and/or learning according to the following table:

Part Replaced or Procedure Performed	Learning	Initialization
Inverter with converter assembly	○	-
Hybrid vehicle transaxle assembly	○	○*1

*1: If it is necessary to replace the hybrid vehicle transaxle assembly, make sure to perform resolver initialization before starting work.

HINT:

After performing resolver initialization, "Learning not completed" will be displayed on the multi-information display when the power switch is turned on (READY).

Related Data List

Data List	Detail
Generator Resolver Offset Value	Displays the resolver learning value. Displays 0 after the inverter with converter assembly has been replaced (and learning has not been performed) or resolver initialization has been performed. Displays the resolver installation offset amount after resolver learning is performed.
Generator Resolver Offset Complete Status	Displays the completion status of the resolver learning. Displays ON when resolver learning is complete.
Motor Resolver Offset Value	Displays the resolver learning value. Displays 0 after the inverter with converter assembly has been replaced (and learning has not been performed) or resolver initialization has been performed. Displays the resolver installation offset amount after resolver learning is performed.
Motor Resolver Offset Complete Status	Displays the completion status of the resolver learning. Displays ON when resolver learning is complete.

(a) Resolver Learning

HINT:

After beginning resolver learning, make sure to perform the procedure until resolver learning for both the generator (MG1) and motor (MG2) are completed. (Resolver learning is complete when the resolver learning incomplete message on the multi-information is cleared.)

(1) Turn the power switch off and wait for 2 minute or more.

(2) Connect the Techstream to the DLC3.

(3) Turn the power switch on (IG).

(4) Check that the air conditioning system and power outlet socket are turned off.

(5) Check that the generator resolver learning incomplete message is displayed on the multi-information display.

(6) Turn the Techstream on.

(7) Check for DTCs make sure no DTCs are output.

(If any DTCs which may affect learning are output, resolver learning cannot be performed.)

(8) Enter the following menus: Powertrain / Motor Generator / Utility / Resolver Learning/Initialization.

Powertrain > Motor Generator > Utility

Tester Display
Resolver Learning/Initialization

(9) According to the display on the Techstream, select "Learning" to start resolver learning.

(10) Turn the power switch on (READY) and wait until the READY indicator changes from blinking to illuminated.

NOTICE:

Do not operate the accelerator pedal, shift lever or any switches until the READY indicator is illuminated.

HINT:

When the power switch is turned on (READY) during resolver learning, the engine will start.

It takes approximately 10 seconds for the READY indicator to illuminate after the power switch is turned on (READY).

(11) Check that the motor resolver learning incomplete message is displayed on the multi-information display.

(12) Move the shift lever to D.

(13) Accelerate the vehicle to between 30 km/h and 40 km/h, fully release the accelerator pedal and allow the vehicle to coast for 3 seconds. (*1)

NOTICE:

Do not operate the accelerator pedal, brake pedal, shift lever or any switches while the vehicle is coasting.

(14) Check that the motor resolver learning incomplete message is not displayed on the multi-information display.

HINT:

If the motor resolver learning incomplete message continues to be displayed on the multi-information display, perform step (*1) again.

(15) Stop the vehicle, turn the power switch off and wait for 1 minute or more.

(16) Turn the power switch on (READY).

(17) Check that the generator resolver learning incomplete and motor resolver learning incomplete messages are not displayed on the multi-information display.

HINT:

If the power switch is turned on (IG) after less than 1 minute has elapsed since the power switch was turned off, the learned value may not be stored correctly and the generator resolver learning incomplete or motor resolver learning incomplete message may be displayed on the multi-information display.

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