Part 4

INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

INITIALIZATION (Continued)

17. OCCUPANT CLASSIFICATION SYSTEM (INITIALIZATION)
NOTICE:
Make sure that the front passenger seat is not occupied before performing the operation.
HINT: Perform zero point calibration if any of the following conditions is met:
- The front seat set (occupant classification ECU) is replaced.
- The passenger airbag ON/OFF indicator indicates OFF when the front passenger seat is not occupied.
- The vehicle is brought to the workshop for repair due to an accident or a collision.

(a) ZERO POINT CALIBRATION
(1) Zero point calibration procedures
1 Check that all of the following conditions are met:

- The vehicle is parked on a level surface.
- No objects are placed on the front passenger seat.
- The front passenger seat belt buckle switch is OFF.

2 Adjust the seat position according to the table below.






3 Connect the Techstream to the DLC3.
4 Turn the power switch ON (IG).
5 Perform zero point calibration by following the prompts on the Techstream screen.
HINT:
- Refer to the Techstream operator's manual for further details.
- If the zero point calibration is performed when the calibration conditions are not satisfied, DTC B1797 is output.
- If the zero point calibration has failed, DTC B1797 is output.
- If After Exchange is selected before the previous ECU data are stored in the Techstream, the display screen returns to CONDITION SELECT ECU: Occupant Detect.






(b) SENSITIVITY CHECK
(1) Sensitivity check procedures
1 Turn the power switch OFF.
2 Place a weight of 20 kg (44.0 lb) on the front passenger seat.




NOTICE:
- Do not allow the weight to come into contact with the seatback when placing it on the seat cushion.
- Place the weight in the area shown in the illustration.

3 Turn the power switch ON (IG), and wait for at least 6 seconds.
4 Check that the passenger airbag ON/OFF indicator indicates OFF.
OK:
Passenger airbag ON/OFF indicator indicates OFF.
5 Add a weight of 30 kg (66.1 lb) to the front passenger seat (total 50 kg (110.2 lb)).
NOTICE:
- Do not allow the weight to come into contact with the seatback when placing it on the seat cushion.
- Place the weight in the area shown in the illustration.

6 Check that the passenger airbag ON/OFF indicator indicates ON.
OK:
Passenger airbag ON/OFF indicator indicates ON.

18. OCCUPANT CLASSIFICATION SYSTEM (REGISTRATION)
(a) REGISTRATION
NOTICE:
- After the power switch is turned OFF, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the power switch OFF, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.
- If any DTCs related to the occupant classification ECU are output, troubleshoot those DTCs by referring to the DIAGNOSTIC TROUBLE CODE CHART.
- When ECU data saving or loading operations cannot be performed, replace the front seat set (with occupant classification ECU and occupant detection sensor).
HINT:
- When the front seat set (occupant classification ECU) is replaced, the previous ECU data must be saved in the Techstream and loaded into the new ECU by following the flowchart below.
- Until the data from the previous ECU are loaded into the new occupant classification ECU, these data are not erased even when the Techstream is turned off.
- ECU EXCHANGE procedure (Before Exchange) describes the procedure to save the data in the Techstream from the occupant classification ECU which was installed on the vehicle. ECU EXCHANGE procedure (After Exchange) describes the procedure to load the data from the previous ECU, stored in the Techstream, into the new ECU.
(1) Connect the Techstream to the DLC3.
(2) Turn the power switch ON (IG).
(3) Store the occupant classification ECU data in the Techstream by following the prompts on the Techstream screen.
HINT: If the ECU data cannot be stored in the Techstream, replace the front seat set (with occupant classification ECU and occupant detection sensor).
(4) Turn the power switch ON (IG).
(5) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(6) Replace the front seat set (occupant classification ECU)
(7) Connect the negative (-) terminal cable to the battery.
(8) Turn the power switch ON (IG).
(9) Load the data from the previous ECU stored in the Techstream into the newly installed ECU by following the prompts on the Techstream screen.
(10) Turn the power switch OFF.
(11) Turn the power switch ON (IG).
(12) Clear the DTCs stored in the memory
HINT: If DTCs are not cleared at this time, past DTCs will remain.

19. ENGINE IMMOBILIZER SYSTEM
(a) DESCRIPTION OF CODE REGISTRATION
HINT:
- The engine immobilizer function's ID code is the same as the recognition code for the smart access system with push-button start and wireless transmitter. Registering an ID code enables the smart access with push-button start, wireless door lock control function and engine immobilizer function to be operated.
- Code registration is needed when the certification ECU, ID code box, steering lock ECU, hybrid vehicle control ECU or key is replaced with a new one.





This vehicle does not have a key slot. Therefore, touch the logo of the key to the power switch to register the key, as shown in the illustration.

(b) KEY REGISTRATION PROCEDURES WHEN ADDING OR REPLACING KEY OR WHEN KEY IS LOST
HINT:
- The following procedures require the use of the Techstream:
- New key ID registration
- A maximum of 7 keys can be registered.






(c) PART REPLACEMENT AND KEY REGISTRATION PROCEDURES
(1) If a malfunctioning ECU is discovered through troubleshooting of the smart key system, use the ECU replacement and key registration procedures in the table below.
HINT:
- The following procedures require the use of the Techstream:
- New key ID registration
- A maximum of 7 keys can be registered.









(d) KEY REGISTRATION PROCEDURES
(1) PROCEDURE "A"
New key ID registration (when replacing certification ECU and ID code box, or certification ECU , ID code box and steering lock ECU), or when performing all keys ID erasure (key code reset)





HINT: *: Repeat this process for each key which is to be registered for the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys has not been finished within the specified time, perform registration procedures from process 1 again. Make sure that only 1 key is in the cabin during registration procedures. If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration.
(2) PROCEDURE "B"
New key ID registration (when replacing certification ECU)





HINT:
- *1: Repeat this process for each key registered for the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys has not been finished within the specified time, perform registration procedures from process process 1 again. If performing the key confirmation procedure for a key, the security indicator light comes on and remains on until all the keys are confirmed.
- *2: Repeat this process for each key which is to be registered for the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys has not been finished within the specified time, perform registration procedures from process 1 again. Make sure that only 1 key is in the cabin during registration procedures. If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration.
(3) PROCEDURE "C"
Additional key ID registration





HINT:
- *1: Perform this process for one of the keys registered for the vehicle. Finish the procedure within 30 seconds. If the procedure has not been finished within the specified time, perform registration procedures from process 1 again.
- *2: Repeat this process for each key which is to be registered for the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys has not been finished within the specified time, perform registration procedures from process 1 again. Make sure that only 1 key is in the cabin during registration procedures. If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration.
(4) PROCEDURE "D"
Key ID erasure (Erase all registered key codes except one)





HINT: *: Perform this process for one of the keys registered for the vehicle. Finish the procedure within 30 seconds. If the procedure has not been finished within the specified time, perform erasure procedures from process 1 again.
(5) PROCEDURE "E"
All keys ID erasure





(6) PROCEDURE "F"
ECU code registration





HINT: *: Perform this process for one of the keys registered to the vehicle. Finish the procedure within 30 seconds. If the procedure has not been finished within the specified time, perform registration procedures from process 1 again.
(7) PROCEDURE "G"
ECU communication ID registration
NOTICE:
- The ECU communication ID should be registered when the ID code box is replaced in order to match the ECU communication ID.
- The hybrid control system cannot be started unless ECU communication ID is registered.
- After the registration, pressing the power switch may not start the hybrid control system on the first try. If so, press the power switch again.
- After the hybrid control system is started, erase DTC B2799-790 (code for hybrid vehicle control ECU's immobilizer communication error) using either of the following methods:
- Use the Techstream.
- Disconnect the battery for 30 seconds.

SST: 09843-18040
1 Using SST, connect terminal 13 (TC) and 4 (CG) of the DLC3.
2 Turn the power switch ON (IG) (do not start the hybrid control system) and leave it as is for 30 minutes.
3 Turn the power switch OFF and disconnect terminals 13 (TC) and 4 (CG).
4 Check that the hybrid control system starts for more than 3 seconds.
(8) PROCEDURE "H"
ECU communication ID reregistration
NOTICE:
The ECU communication ID should be registered when the hybrid vehicle control ECU is replaced in order to match the ECU communication ID.





20. ADJUST OBJECT RECOGNITION CAMERA
HINT: If the object recognition camera sensor is replaced or removed/installed, or the toe-in is adjusted, perform the object recognition camera sensor and object recognition camera ECU adjustment.




NOTICE:
- Make sure there are no black and white patterned objects in front of the vehicle.
- Be sure to perform the measurement on a level surface that is free of obstacles and extends 1.5 m (4.92 ft.) or more in front of the vehicle.
- Make sure that there is no wind when performing the measurement.
- Check that there are no reflective materials in the surroundings or on the ground within a 3 m (9.84 ft.) or more x 3 m (9.84 ft.) or more area in front of the vehicle.
- Perform the inspection in a bright area.

(a) Beam axis learning preparation
(1) Move the vehicle to a level surface.
(2) Make sure the engine oil in the vehicle is at the specified amount.
(3) Make sure the engine coolant in the vehicle is at the specified amount.
(4) Make sure the fuel tank is full.
(5) Make sure the spare tire is in the vehicle.
(6) Make sure the standard tools are in the vehicle.
(7) Make sure nobody is in the vehicle.
(8) Make sure no extra loads are in the vehicle.
(9) Adjust the tire pressures to the specified pressure.
(10) Clean the front glass.
(11) If the lens of the object recognition camera sensor is dirty, apply a small amount of lens cleaner to a clean, soft cloth and clean the lens.
(b) Perform adjustment of suspension control system
(1) Perform the adjustment of suspension control system.
NOTICE:
Perform this procedure as accurately as possible.

(c) Perform the front wheel alignment adjustment
(1) Perform the front wheel alignment adjustment.
NOTICE:
Perform this procedure as accurately as possible.

(d) Perform the rear wheel alignment adjustment
(1) Perform the rear wheel alignment adjustment.
NOTICE:
- Perform this procedure as accurately as possible.
- Press the height control switch and change the vehicle height to HIGH and return it to NORM. Then repeat.

(e) Target sheet creation
(1) Print or copy the illustration below. Check that the dimensions are +/- 5 mm (0.197 in.) of the ones in the table below.









NOTICE:
- Make sure that the black areas of the target sheets are not glossy.
- Make sure that the borders of the black and white areas on the target sheets are straight, and are not warped or blurry.

If the print or copy's dimensions are not as specified, adjust settings and reprint or recopy so that the print or copy's dimensions are as specified.





(f) Target sheet attachment




(1) Place the prepared target sheet on a piece of cardboard of the same size with the black area on the top right, as shown in the illustration. Then use double-sided tape to fix the target sheet in place.
NOTICE:
Do not attach reflective tape, such as scotch tape, etc. to the target face, as this may affect target recognition.




(2) Hang a weight with a pointed tip from the center of the target sheet. Then, with double-sided tape, attach the target sheet to the reflector so that the weight aligns with the mark-off line of SST (laser radar adjusting reflector).
SST: 09870-60000 (09870-60010, 09870-60020)
- Perform this procedure as accurately as possible.
- Attach the target sheet so that it is horizontal with the ground.




(3) Move the reflector up and down to position the center of the target at the height shown in the illustration, and fix it in place.
Dimension A:
1270mm (50 in.)
SST: 09870-60000 (09870-60010, 09870-60020)
NOTICE:
Perform this procedure as accurately as possible.

(g) Target placement point measurement
NOTICE:
- Do not place black and white patterned objects near the target.
- Face the vehicle toward a wall with no patterns, or make sure the background behind the target has no patterns.
- Perform this procedure as accurately as possible.
- Do not place reflective materials in the area behind the target.
- Make sure there are no patterns on the wall behind the target.
- Make sure the distance between the target and wall is within 3 m (9.84 ft.).
- Make sure the target's shadow is not on the wall, as the camera may have a recognition error.




(1) From the center of the front and back bumpers (center of the emblems), hang a weight with a pointed tip, and mark the front bumper center point A and the rear bumper center point B on the ground.
(2) Draw a line that connects points A and B, and extend the line approximately 2 m (6.56 ft.) beyond the front of the vehicle.
HINT: Secure the end of a string to point B. Then hold the other end of the string approximately 2 m (6.56 ft.) in front of the vehicle, and move it to the left or right to align the string with point A to make a straight line.
(3) Mark point C 990 mm (39.0 in.) from the front bumper center point A (placement point 1).




(4) From point C, move 700 mm (27.6 in.) towards the front bumper center point A and mark point D.
(5) From point C, place marking tape at the point 700 mm (27.6 in.) perpendicular to the line that connects points A and B.
NOTICE:
Place the tape so that there is plenty of surface area along the perpendicular line.
(6) Using a measuring tape of 5 m (16.41 ft.) or more, and point D as the center point, draw the part of a 900 mm (38.98 in.) circle that overlaps the marking tape (line E).
(7) Mark point F where the following intersect: 1) from point C, the point that is 700 mm (27.6 in.) perpendicular from the line that connects point A and B; and 2) line E.
(8) Set the measuring tape from point C to F. Then mark point G 740 mm (29.1 in.) from point C (line extending from point C to F) (placement point 2).
(9) Set the measuring tape from point F to C. Then mark point H 740 mm (29.1 in.) beyond point C (placement point 3).
(10) Set a string between points G and H, and draw a line on the ground (target placement line).
(h) Object recognition camera sensor height measurement
NOTICE:
- Do not place black and white patterned objects near the target.
- Face the vehicle toward a wall with no patterns, or make sure the background behind the target has no patterns.
- Perform this procedure as accurately as possible.
- Do not place reflective materials in the area behind the target.
- Make sure there are no patterns on the wall behind the target.
- Make sure the distance between the target and wall is within 3 m (9.84 ft.).
- Make sure the target's shadow is not on the wall, as the camera may have a recognition error.




(1) Measure the distance (X mm or in.) from the ground to point H for the front left wheel arch.
(2) Measure the distance (Y mm or in.) from the ground to point H for the front right wheel arch.
(3) The average of the 2 distances (X mm or in, Y mm or in.) plus 599 mm (23.6 in.) is the height of the object recognition camera sensor.
(i) Memorize camera/target position
NOTICE:
- Close all doors.
- Perform the procedure with no one in the vehicle.
- During the procedure, do not lean on the vehicle.
- Illuminate the clearance lights.
- Do not illuminate the headlights.
(1) When using Techstream:
1 Connect Techstream to the DLC3.
2 Turn the power switch ON (IG)
3 Turn the Techstream main switch ON.
4 Select "Connect to Vehicle".
5 Under "Option", select "LKA System".
6 Under "System Selection Menu", select "Powertrain".
7 Select "Lane Keeping Assist", then select "Camera/target position memory"
HINT: A buzzer will sound for 1 seconds.

8 Follow the tester display, and continue with the adjustment.
(2) Input the measured height of the object recognition camera sensor and the horizontal position of the camera "175 mm (6.89 in.)" into the input screen. Then press the "Enter" button on the display screen.
(3) Input "3000 mm (118 in.)" for the distance from the camera to the target and "1270 mm (50.0 in.)" for the height of the target into the input screen. Then press the "Enter" button on the display screen.
(4) Press the "Exit" button to finish the camera/target position memory mode.
NOTICE:
If "Error Camera/target position memory" is displayed on the screen, press the "Try Again" button, and repeat procedures *1 again.

(j) Beam axis learning
(1) Select "LKA System" from the display screen.*1
(2) Select "Utility" from the display screen.
(3) Select "Camera axis adjust" from the display screen.
(4) Follow the tester display, and continue with the adjustment.




(5) Align the target sheet with the target placement line, and align the mark-off line with placement point 1 (point C).
(6) Check that the screen displays beam axis learning for target 1, then press the "Enter" button on the display screen.




(7) Align the target sheet with the target placement line, and align the mark-off line with placement point 2 (point G).
(8) Check that the screen displays beam axis learning for target 2, then press the "Enter" button on the display screen.
NOTICE:
Within 3 minutes after the screen displays the beam axis learning for target 2, move the target and press the "Enter" button on the display screen.




(9) Align the target sheet with the target placement line, and align the mark-off line with placement point 3 (point H).

(10) Check that the screen displays beam axis learning for target 3, then press the "Enter" button on the display screen.
NOTICE:
Within 3 minutes after the screen displays the beam axis learning for target 3, move the target and press the "Enter" button on the display screen.

(11) Press the "Exit" button to finish the beam axis learning mode.
NOTICE:
If "Error camera axis adjust" is displayed on the screen, press the "Exit" button. Then after checking the conditions below, turn the power switch ON (IG) and OFF, and repeat from procedure *1 again.
- Height of the target.
- Distance from object recognition camera sensor to target.
- Orientation of target (black area positioned on top right).
- If surrounding area is bright enough.
- If black and white patterned objects are placed near the target.