Part 6

INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

INITIALIZATION (Continued)

24. LEXUS LINK SYSTEM
(a) MAYDAY ECU INITIALIZATION
HINT: This procedure is for switching a new mayday ECU from the Factory Mode into Demo Mode.
(1) Turn the engine switch from OFF to ON (IG) (engine does not have to be running).
(2) The mayday ECU will perform the Factory Mode Start Sequence for approximately 30 seconds.
HINT:
- In Factory Mode, for each ignition cycle OFF to ON (IG), or after checking or clearing DTCs, the ECU will perform a start sequence that includes a Japanese prompt and flashing LEDs (approximately 30 seconds). Then the LEDs will turn off. Do not push any buttons during this start sequence.
- If there is a DTC detected during this Factory Mode Start Sequence, after the start sequence, the red LED will remain on and a Japanese prompt will repeat 5 times. Do not press any buttons during these prompts.
(3) BUTTON SEQUENCE:
While pressing and holding the VOL+ button, press and release the PHONE button 5 times within 15 seconds, then release the VOL+ button. When switched to Demo Mode, each LED will flash one time then turn off (approximately 5 seconds).
(4) CONFIRMATION:
Confirm Demo Mode by pressing the SERVICES button and listening for the demo prompt "Hello and welcome to LEXUS Link." (the engine switch must be ON (IG) for the SERVICES button to function). Additionally, after each ignition cycle OFF to ON (IG), the LEDs will each flash one time each. This start sequence takes approximately 5 seconds. If Demo Mode is not confirmed, repeat the initialization procedure.
HINT:
- Before troubleshooting a DTC, attempt to initialize the ECU into Demo Mode with the button sequence. Then access DTCs and troubleshoot the ECU in Demo Mode. If necessary, DTCs can still be accessed in Factory Mode. However, the 30 second Factory Mode Start Sequence (and the Japanese prompt will repeat 5 times if a DTC is set) will occur after each ignition cycle OFF to ON (IG), and after each DTC check or clear. Do not press any buttons during this start sequence.
- A red LED continuously on in any mode indicates that there is a current DTC set. Refer to the DTC chart.
- Do not push any buttons during any start sequences (LED flashing or voice prompts).

(b) MAYDAY ECU REGISTRATION / ENROLLMENT
(1) Turn the engine switch ON (IG) and wait for the 5 second LED flash start sequence. Press the SERVICES button when the mayday ECU is set normally and confirm that the following demo message is provided.
"Hello and welcome to LEXUS Link."
If the message is not provided, perform the "MAYDAY ECU INITIALIZATION BUTTON SEQUENCE" again.
(2) As the message states, press the SERVICES button again during the prompt to connect to the LEXUS Link call center.
HINT: Usually this call will connect within 15 to 30 seconds. However, it may take several minutes depending on cellular service in the area. A progression tone (i.e., beep) will be heard every 5 seconds to indicate that the connection attempt is in progress.
(3) A LEXUS Link call center advisor will answer and instruct the technician on how to register/enroll the new mayday ECU. The ESN, STID and VIN may be required at this time.
HINT:
- If the LEXUS Link call center cannot be reached after several attempts using the SERVICES button, or a cell tower message is heard, such as "Welcome to Verizon Wireless, your phone is not active at this time.", call the LEXUS Link call center by pushing the EMERGENCY button.
- The LED flash start sequence (approximately 5 seconds) after ignition is cycled or after checking/clearing DTCs remains present after enrollment. A green LED continuously on after this sequence indicates that the LEXUS Link System is activity enrolled.

(c) MAYDAY BATTERY REGISTRATION
HINT:
- This procedure is required to register a new mayday battery and clear DTC 6-1. This procedure matches the new mayday battery with the new or used ECU.
- A new mayday ECU always requires a new mayday battery (used mayday batteries should not be reused in a new ECU).
- If the new replacement ECU is packaged and already connected to the new mayday battery when it arrives from the factory, and current DTC 6-1 is not set, do not perform the new mayday battery registration (the battery is already registered to the ECU that it is connected to).
(1) Turn the engine switch from OFF to ON (IG) and wait for the start up sequence of LED flashing to complete. Do not press any buttons during this start up sequence.
(Note that Demo Mode and active enrolled ECUs have approximately a 5 second LED flashing start sequence. Factory Mode has approximately 30 seconds of LED flashing with a Japanese voice prompt. Also note if a current DTC is set in Factory Mode after this start sequence. This can be confirmed if the red LED remains on and an additional Japanese prompt repeats 5 times.)
(2) BUTTON SEQUENCE:
Press and hold the PTT button while completing the following sequence of button presses.
VOL+, VOL+, VOL-, VOL-, VOL+, VOL+, VOL-, VOL-, VOL+, VOL+, VOL-, VOL-
Release all buttons. This button press sequence should be performed within 15 seconds.
(3) The system will then perform the same start sequence as described above. After this start sequence completes, cycle the ignition to off then ON (IG). Wait for the start sequence to complete. The new mayday battery is now registered to the mayday ECU and DTC 6-1 should be cleared.
HINT: The mayday battery registration can be done in any mode (Factory Mode, Demo Mode or activity enrolled).

(d) MAYDAY BATTERY CONFIRMATION
(1) After replacement check: If the "MAYDAY BATTERY REGISTRATION BUTTON SEQUENCE" has been completed, turn the engine switch OFF and ON (IG), wait for the start sequence described in the "MAYDAY BATTERY REGISTRATION". Then check that current DTC 6-1 is cleared.
NOTE:
If the "MAYDAY BATTERY REGISTRATION BUTTON SEQUENCE" has not been completed correctly, current DTC 6-1 will continue to be detected even if the mayday battery is replaced with a new one. In this case, check to be sure the old battery is removed and the new battery is installed. Then perform the "MAYDAY BATTERY REGISTRATION BUTTON SEQUENCE" again.

25. INITIALIZE POWER WINDOW CONTROL SYSTEM (POWER WINDOW REGULATOR MOTOR (ALL DOORS))
CAUTION:
When the power window regulator motor is reinstalled or replaced, the power window control system must be initialized. Functions such as the AUTO UP / DOWN, jam protection and key-off do not operate if the initialization is not performed.
HINT: When the battery is replaced, it is not necessary to initialize the power window regulator motor.
NOTICE:
- When the power window regulator motor assembly is replaced, DTC B2313 is output. Clear the DTC after the initialization.
- When performing initialization, do not perform any other procedures.
- After a door glass or a door glass run has been replaced, the jam protection function may operate unexpectedly when the AUTO UP function is used, due to detection of the different operation learned value of the door glass movement speed. In such cases, the AUTO UP function can be resumed by repeating the following operation at least 5 times:
1 Open the power window by fully pushing down the switch.
2 Close the power window by fully pulling up the power window switch and holding it at the AUTO UP position.
- If the initialization is not completed properly, the LIN communication system may have a malfunction.

(a) Initialization procedures when replacing the power window regulator motor with new one
(1) Connect the battery and turn the engine switch ON (IG). (At this time, the LED on the power window regulator switch blinks to indicate that it is ready for initialization.)
(2) Fully open the window by fully pushing the power window regulator switch, and hold the switch for 1 second or more after the window is fully opened.
(3) Fully close the power window by fully pulling the power window regulator switch, and hold the switch for 1 second or more after the window is fully closed to reset the glass position. The LED on the power window regulator switch changes from blinking to illuminated to indicate that the initialization is complete.
(b) Initialization procedures when removing/installing the power window regulator motor assembly
(1) Connect the battery and turn the engine switch ON (IG). (At this time, the LED on the power window regulator switch blinks to indicate that it is ready for initialization.)
(2) Fully close the power window by fully pulling the power window regulator switch, and hold the switch for 6 seconds or more after the window is fully closed. (If the power window does not move or stops halfway even when the switch is fully pulled, release the switch and fully pull it again.)
(3) Fully open the window by pushing down the power window regulator switch, and hold the switch for 1 second or more after the window is fully opened.
(4) Release the power window regulator switch. Then fully push and hold the switch 4 seconds or more.
(5) Fully close the power window by fully pulling the power window regulator switch, and hold the switch 1 second or more after the window is fully closed to reset the glass position. The LED on the power window regulator switch changes from blinking to illuminated to indicate that the initialization is complete.
(c) Initialization procedures when the power window does not fully open
(1) Perform the initialization procedures when removing/installing the power window regulator motor assembly.
26. INNER REAR VIEW MIRROR
(a) COMPASS DISPLAY MODE SELECTION
(1) Turn the compass display ON and OFF by pressing and holding the AUTO switch for 3 seconds.
(2) Procedures for selecting compass mode.
1 Turn the engine switch ON (IG).
2 Check that the inner mirror's LED illuminates green.
3 Check that one of the following directions is displayed: N, NE, E, SE, S, SW, W, NW.
4 Press and hold the inner mirror's AUTO switch for 3 seconds, and check that the direction display turns off.
HINT: Immediately after the AUTO switch is pressed, check that the LED turns off and the inner mirror anti-glare mode turns off. Then, after the AUTO switch is pressed and held for 3 seconds, check that the LED illuminates and the inner mirror anti-glare mode turns on.

(b) COMPASS ZONE SETTING
(1) The location of magnetic north and true north differs depending on the vehicle's location. Adjustment of the compass's magnetism is required. The user must select a zone as the automatic adjustment will be different depending on the vehicle's location.
(2) Change the inner mirror's zone setting using the AUTO switch procedures described below.
(3) Procedures for selecting zone.
1 Turn the engine switch ON (IG).
2 Check that the inner mirror's LED illuminates green.
3 Check that one of the following directions is displayed: N, NE, E, SE, S, SW, W, NW.
4 Press and hold the inner mirror's AUTO switch for 3 seconds, and check that the direction display turns off.
5 Do not release the AUTO switch and hold it for another 3 seconds (total press time: 6 seconds). Check that ZONE or a number from 1 to 15 is displayed on the compass.
6 Each press of the AUTO switch causes the number display to increase by 1. Use the zone setting map to find the appropriate zone and set the zone number.
7 After setting the zone number, check that waiting several seconds causes the compass to return to the direction display.

(c) COMPASS ZONE MAP





(d) COMPASS CALIBRATION
(1) Compass calibration should be performed on each vehicle, as each vehicle has a unique magnetic field. Performing compass calibration will store information about the vehicle's magnetic field.
(2) Procedures for calibration.
1 Turn the engine switch ON (IG).
2 Check that the inner mirror's LED illuminates green.
3 Check that one of the following directions is displayed: N, NE, E, SE, S, SW, W, NW.
4 Press and hold the inner mirror's AUTO switch for 3 seconds, and check that CAL is displayed on the compass.
5 Perform calibration by driving the vehicle at 8 km/h (5 mph) or less in a circle.
6 Drive in a circle 1 to 3 times, and check that calibration is completed by confirming that CAL is not displayed on the compass.
HINT: After the calibration is performed once, calibration will not be necessary unless the vehicle's magnetic field changes drastically. If the magnetic field has changed, CAL will be displayed on the compass.

27. INITIALIZE FRONT POWER SEAT CONTROL SYSTEM
NOTE:
The position sensor initialization must be performed if one of the following occurs.
- Front power seat switch (seat ECU) is replaced.
- Front seat adjuster is replaced.
- Initialization cancel operation is performed.
- Power seat motor for the driver seat is operated when D P/SEAT fuse or D MPX-B 1 fuse has an open circuit.
- Power seat motor for the front passenger seat is operated when P P/SEAT 1 fuse or P MPX-B fuse has an open circuit.
- Power seat motor inspection is performed.





(a) Initialization cancel operation for driver seat
(1) Turn the engine switch on (IG).
(2) Press the power seat switch front vertical switch downward 3 times.*1
(3) Within 10 seconds of the above operation, begin the following operation: perform the rearward reclining operation and upward lifter operation simultaneously for 10 seconds or more (buzzer sounds 0.5 seconds). This will cancel the initialization.*2

(b) Initialization operation for driver seat




(1) Perform the initialization cancel operation.
(2) Use the slide operation to move the front power seat to the rearmost lock position.*1
HINT:
- While performing the slide operation, the buzzer sounds.
- After the slide operation initialization is complete, the headrest and cushion extender initialization occurs automatically. At this time, the headrest will move to the uppermost position, and the cushion extender will move rearward.
(3) Use the reclining operation to move the seatback to the foremost lock position (buzzer sounds for 0.5 seconds).*2




(4) Operate the power seat switch and check that the head restraint moves to be lowermost position.*1
(5) Operate the power seat switch and check that the seat slides forward and rearward and that the beeping sound is not emitted.*2
HINT: After performing all of the procedures above, if the buzzer sounds while performing a manual operation, the initialization was not completed properly. Repeat all of the above procedures.





(c) Initialization cancel operation for passenger seat
(1) Turn the engine switch on (IG).
(2) Press the power seat switch front vertical switch downward 3 times.*1
(3) Within 10 seconds of the above operation, begin the following operation: perform the rearward reclining operation and upward lifter operation simultaneously for 10 seconds or more (buzzer sounds 0.5 seconds). This will cancel the initialization.*2

(d) Initialization operation for passenger seat
HINT: *: for Ottoman




(1) Perform the initialization cancel operation.
(2) Use the slide operation to move the front power seat to the rearmost lock position.*1
HINT:
- While performing the slide operation, the buzzer sounds.
- After the slide operation initialization is complete, the headrest and lifter initialization occurs automatically. At this time, the headrest will move to the lowermost position, and the lifter will move either upward or downward.
(3) Use the reclining operation to move the seatback to the foremost lock position (buzzer sounds for 0.5 seconds).*2




(4) Operate the power seat switch and check that the head restraint moves to be uppermost position.*1
(5) Operate the power seat switch and check that the seat slides forward and rearward and that the beeping sound is not emitted.*2
HINT:
- After performing all of the procedures above, if the buzzer sounds while performing a manual operation, perform the rear seat initialization*.
- After performing all of the procedures above, if the buzzer sounds while performing a manual operation, the initialization was not completed properly. Repeat all of the above procedures.

28. REAR POWER SEAT INITIALIZATION
NOTE:
The position sensor initialization must be performed if one of the following occurs: 1) the position control ECU is replaced or removed and installed; 2) the rear seat adjuster is replaced; or 3) the initialization cancel operation is performed.
HINT: The initialization is only performed for the seat selected with the left / right selection switch.

(a) Initialization cancel operation




(1) Turn the engine switch ON (IG).
(2) Press the rear power seat switch upper lumbar switch rearward 3 times.




(3) Within 10 seconds of the above operation, begin the following operation: perform the downward headrest operation and forward slide operation simultaneously for 10 seconds or more. This will cancel the initialization (buzzer sounds for 0.5 seconds).

(b) Initialization operation




HINT:
- *: W/ Ottoman
- If the initialization is not completed, the buzzer will sound during the manual operation.
(1) Perform the initialization cancel operation.
(2) Use the slide operation to move the rear power seat to the rearmost lock position.
HINT: While performing the slide operation, the buzzer sounds.




(3) Use the reclining* operation to move the rear power seat to the rearmost lock position (buzzer sounds for 0.1 seconds).




(4) Use the ottoman* operation to move the rear power seat to the lowermost lock position (buzzer sounds for 0.1 seconds).




(5) Use the upper lumbar operation to move the upper seatback to the rearmost lock position (buzzer sounds for 0.5 seconds). The initialization is complete.
(6) Operate the power seat switch and check that the seat slides forward and rearward and that the beeping sound is not emitted.
29. RESET POWER TRUNK LID SYSTEM
NOTE:
Perform initialization of the power trunk lid system (power trunk lid control ECU initialization) if one of the following is performed: 1) The negative (-) battery cable is disconnected; 2) a wire harness, the luggage closer motor (power trunk lid control ECU) or luggage compartment door closer is replaced or removed/installed; or 3) the RR MPX-B1 fuse is replaced or removed/installed. If initialization is not performed, the power trunk lid system will not operate.

(a) Completely close the luggage compartment door by hand once.
HINT:
- It is not necessary to perform initialization if the negative (-) battery cable is disconnected while the luggage compartment door is closed.
- If the power trunk lid system does not operate and/or the luggage compartment door does not open, disconnect the negative (-) battery cable. Then wait 10 seconds, reconnect the cable and perform initialization of the power trunk lid system again.

30. RESET REAR DOOR SUNSHADE SYSTEM
NOTE:
The rear curtain position reset operation must be performed when one of the following occurs: 1) battery removal and installation; 2) ECU reset; or 3) jam protection related detachment.

(a) Turn the engine switch on.
(b) Push the front or rear switch's rear door sunshade switch.
HINT: The motor must be moved in the lowering direction.

(c) Push the front or rear switch's rear door sunshade switch.
HINT: Make sure that the rear curtain raises.

31. INITIALIZE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY
NOTICE:
- When the sliding roof glass is replaced or removed and installed, or the drive gear assembly is replaced, the sliding roof drive gear requires initialization (pulse sensor initial position setting), as the glass position cannot be determined. If initialization is not performed, the AUTO slide open and close / tilt up and down function may not operate, or the sliding roof may move in reverse or become misaligned.
- During initialization, do not apply a physical shock, such as opening/closing a door or driving the vehicle at 5 km/h (3.10 mph) or more, to the vehicle and do not perform the following electrical operations:
1 Cranking the engine
2 Turning the engine switch from on (IG) to off
3 Operating the power window switches
4 Operating the window defogger switch
5 Operating the blower switch
6 Locking/Unlocking the door
7 Operating the headlight dimmer switch
HINT: When the cable is disconnected and reconnected to the negative (-) battery terminal or the drive gear connector is disconnected and reconnected, the sliding roof drive gear (pulse sensor initial position setting) initialization is not necessary.

(a) Perform initialization according to the table below.





(1) Procedure A
1 Turn the engine switch on (IG).
2 Close the sliding roof to the fully closed position.
3 Press and hold the TILT UP switch to perform the following operations: tilt up -> approximately 1 second pause -> tilt down -> slide open -> slide close.
NOTE:
Make sure not to release the switch during the initialization. If the switch is released, perform the initialization again.

4 The initialization is completed.
(2) Procedure B
1 Turn the engine switch on (IG).
2 Press the TILT UP switch until the sliding roof stops.
HINT: If the glass becomes misaligned or does not fully tilt up, perform the following operations:

1 Operate the SLIDE CLOSE switch until the sliding roof stops moving.
2 Operate the TILT UP switch until the sliding roof stops moving, then proceed to the next step.


3 Release the switch.
4 Press the TILT UP switch for 10 seconds or more to perform the following operations: tilt up -> approximately 1 second pause -> tilt down -> slide open -> slide close.
NOTE:
Make sure not to release the switch during the initialization. If the switch is released, perform the initialization again.

5 The initialization is completed.
(3) Procedure C
1 Turn the engine switch on (IG).
2 Press and hold the SLIDE CLOSE switch to perform the following operations: slide close -> move in reverse direction -> 10 second pause -> slide close.
NOTE:
Make sure not to release the switch during the initialization. If the switch is released, perform the initialization again.

3 After the sliding roof stops in the fully closed position, release the switch.
4 Perform procedure A.