Part 1
INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION
1. PROCEDURES NECESSARY WHEN BATTERY TERMINAL IS DISCONNECTED/RECONNECTED
NOTICE:
After the power switch is turned off, the display and navigation module display (HDD navigation system) records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 60 seconds before disconnecting the cable from the negative (-) battery terminal.
2. PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED
* *1: w/ garage door opener system
* *2: w/o air suspension system
3. VEHICLE IDENTIFICATION NUMBER (VIN) REGISTRATION (Hybrid Control System)
NOTICE:
The Vehicle Identification Number (VIN) must be input into the replacement power management control ECU.
HINT
The VIN is in a 17-digit alphanumeric vehicle identification number. The Techstream is required to register the VIN.
(a) DESCRIPTION
(1) Read VIN: This process allows the VIN stored in the power management control ECU to be read, in order to confirm that the two VINs, provided with the vehicle and stored in the power management control ECU, are the same.
(2) Write VIN: This process allows the VIN to be input into the power management control ECU. If the power management control ECU is changed, or the power management control ECU VIN and the vehicle VIN do not match, the VIN can be registered, or overwritten in the power management control ECU by following this procedure.
(b) READ VIN
(1) Confirm the vehicle VIN.
(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 / Hybrid Control / Utility / VIN / VIN Read.
(c) WRITE VIN
(1) Confirm the vehicle VIN.
(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 / Hybrid Control / Utility / VIN / VIN Write.
4. ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY (Dynamic Radar Cruise Control System)
Text in Illustration
CAUTION:
Exposure to radio frequency emissions is hazardous to your health. It is hazardous to your health to be within 20 cm (7.87 in.) of the device's radio frequency aperture.
NOTICE:
* This device complies with FCC radio frequency emission regulations.
* Perform measurements on a level surface.
* Make sure that no large pieces of metal are within a 10 m (32.8 ft.) x 14 m (45.9 ft.) area in front of the vehicle. If possible, the surrounding area should also be free of large metal objects.
(a) Before adjusting the radar beam axis, prepare the vehicle as follows.
(1) Check the tire pressure and adjust it if necessary.
(2) Remove all excess weight from the vehicle (luggage, heavy objects, etc.).
(b) w/ Air Suspension:
Adjust the vehicle's height to the standard height.
(c) Check and adjust the vertical direction of the radar sensor.
Text in Illustration
(1) Remove dust, oil and foreign matter from the radar sensor's level rack.
(2) Set a level on the radar sensor's level rack.
(3) Check that the level's air bubble is within the red frame.
Text in Illustration
OK:
Level's air bubble is within red frame.
(3) If the bubble is not within the red frame, use a screwdriver to adjust bolt A until the air bubble is within the red frame.
HINT
* The adjustable range within the level's red frame is +/-0.2°.
* The target angle is +0.2° (upward angle of 0.2°).
Result:
(d) Adjust the reflector height.
Text in Illustration
(1) Adjust the reflector so that the center of SST reflector is the same height as the millimeter wave radar sensor.
SST : 09870-60000
09870-60010
SST : 09870-60040
HINT
Prepare a 10 m (32.8 ft.) string, a string with a sharp-pointed weight (plumb bob), and a 5 m (16.4 ft.) tape measure.
(e) Place the reflector.
(1) Hang the string (with weight) from the center of the vehicle's rear emblem. Mark the vehicle's rear center point on the ground. Repeat for the front of the vehicle.
(2) Set one end of the 10 m (32.8 ft.) string on the vehicle's rear center point. Run the string over the vehicle's front center point to a position 5 m (16.4 ft.) beyond the vehicle's front center point, as shown in the illustration. Mark the 5 m (16.4 ft.) position.
(3) Using a tape measure, measure 15 mm (0.591 in.) to the right of the 5 m (16.4 ft.) position. Place the reflector at that position.
NOTICE:
Perform the operation as precisely as possible.
Text in Illustration
(f) Check the radar beam axis.
(1) When using the Techstream:
1 Connect the Techstream to the DLC3.
2 Turn the power switch on (IG).
3 Turn the Techstream on, and turn the cruise control main switch on.
4 Select "Connect to Vehicle".
5 Select each item on the display screen and proceed to the next screen.
6 Under "System Selection Menu", select "Radar Cruise".
7 Select "Utility".
8 Select "Beam Axis Adjustment" and proceed to the next screen.
HINT
A buzzer will sound for 1 second.
9 Follow the tester display, and continue with the adjustment.
CAUTION:
Do not come within 20 cm (7.87 in.) of the radar sensor.
NOTICE:
* Turn the cruise control main switch on before pressing Next.
* Make sure there is at least 20 cm (7.87 in.) between the radar sensor and any nearby individuals.
(2) Check the following items on the laser cruise divergence data screen.
NOTICE:
While using the Techstream beam axis adjustment mode, the actual direction and angle of the radar sensor may be different from the Techstream data. In such a case, the deviation is displayed on the combination meter's multi-information display.
1 Confirm that the distance value is approximately 5 m (16.4 ft.).
HINT
* A value between 0.0 m (0.0 ft.) and 6.3 m (20.7 ft.) is indicated.
* If the distance is 0.0 m (0.0 ft.), the sensor cannot detect the target. Reconfirm that there is no metal in the specified area in front of the vehicle (refer to the NOTICE at the beginning of this adjustment procedure).
2 Confirm that the left/right side value is between 0.0 m (0.0 ft.) and 6.3 m (20.7 ft.).
HINT
If the distance is 0.0 m (0.0 ft.), the sensor cannot detect the target. Reconfirm that there is no metal in the specified area in front of the vehicle (refer to the NOTICE at the beginning of this adjustment procedure).
(g) Check and adjust the horizontal direction of the radar sensor.
(1) Check that the divergence of the radar beam axis is 0°.
Standard:
0° (Both right and left)
(1) If the axis is not as specified, use a screwdriver to adjust bolt B until the divergence of the radar beam axis is 0°.
(2) Based on the measured divergence of the beam axis, turn and adjust bolt B for horizontal adjustment of the millimeter wave radar sensor using a screwdriver.
Text in Illustration
Result:
HINT
* If "LEFT SIDE: 1.0°" is displayed, the divergence is 1.0° in the left direction. Turn bolt B approximately 2.5 turns to the negative (-) side.
* If the value does not change to 0°, it is possible that the sensor is aiming at something different. Reconfirm that there are no reflective materials in the surrounding area.
(3) Select "Next". The driving learning value is automatically reset.
HINT
A buzzer will sound for 10 seconds or more.
(4) Disconnect the Techstream from the DLC3.
(h) Recheck and readjust the vertical direction of the radar sensor.
(1) Set a level on the radar sensor's level rack.
Text in Illustration
(2) Check that the level's air bubble is within the red frame.
Text in Illustration
OK:
Level's air bubble is within the red frame.
(2) If the bubble is not within the red frame, use a screwdriver to adjust bolt A until the level's air bubble is within the red frame.
HINT
* The adjustable range within the red frame is +/-0.2°.
* The target angle is +0.2° (upward angle of 0.2°).
Result:
5. REGISTRATION OF VEHICLE IDENTIFICATION INFORMATION (Air Suspension System)
NOTICE:
* The CAN communication system must be functioning normally.
* Make sure that the power management control ECU is the correct type, normally functioning and correctly installed.
HINT
* If the suspension control ECU is replaced with a new one, perform registration of vehicle identification information.
* Vehicle identification information is obtained automatically through CAN communication when in test mode.
(a) Turn the power switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the power switch on (IG).
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / Air suspension / Utility / Signal Check.
(f) Confirm that the system is in test mode by checking that the luggage mode indicator light in the combination meter blinks at 0.125 second intervals (0.125 seconds on and 0.125 seconds off).
HINT
* When the vehicle identification information is stored, the luggage mode indicator light blinks at 0.125 second intervals (0.125 seconds on and 0.125 seconds off).
* When vehicle identification information is not stored, the luggage mode indicator light blinks at 1 second intervals (1 second on and 1 second off).
6. VEHICLE HEIGHT OFFSET CALIBRATION (Air Suspension System)
NOTICE:
* Make sure that the pressure of the tires is normal.
* Make sure that the vehicle is empty.
* Make sure that the parking brake is released and that the shift lever is in N. Ensure that the vehicle does not move at this time.
HINT
If replacing the suspension control ECU and/or height control sensor, perform the vehicle height offset calibration.
1. ADJUST THE PRESSURE OF THE TIRES
(a) Check the pressure of each tire and, if the value is not as specified, adjust it.
NEXT -- Continue to next step.
2. PERFORM VEHICLE HEIGHT INSPECTION
(a) Stabilize the suspension by releasing the parking brake and bouncing the corners of the vehicle up and down.
(b) Turn the power switch on (READY) and set the vehicle height in HI mode.
(c) Check that the HI mode light blinks and then remains on, and that the vehicle height control operation has finished.
(d) Set the vehicle height in N mode.
(e) Check that the N mode light blinks and then remains on, and that the vehicle height control operation has finished.
(f) Turn the power switch off.
(g) Move the shift lever to N and move the vehicle forward and rearward.
(h) Connect the Techstream to the DLC3.
(i) Turn the power switch on (IG).
(j) Turn the Techstream on.
(k) Using the Techstream.
Enter the following menus: Chassis / Air suspension / Data List. Then read and write the values for "After Height Adjust" and "Height Adjust" for each wheel.
Air Suspension System
(l) Turn the power switch off.
(m) Inspect vehicle height and make a note of actual vehicle height.
(n) Calculate the absolute value of "Height Adjust" + (standard vehicle height - measurement vehicle height - "After Height Adjust" ).
Standard:
HINT
When performing automatic vehicle height adjustment using the Techstream, the maximum height adjustment is 80 mm (3.15 in.). If the absolute value of "Height Adjust" + (standard vehicle height - measurement vehicle height - "After Height Adjust" ) is more than 80 mm (3.15 in.), first adjust the height control sensor links as necessary until the vehicle height compensation value is less than 80 mm (3.15 in.).
B -- Go to step 4
C -- END (VEHICLE HEIGHT ADJUSTMENT IS NOT NECESSARY)
A -- Continue to next step.
3. PERFORM VEHICLE HEIGHT ADJUSTMENT USING HEIGHT CONTROL SENSOR LINK
(a) Adjust vehicle height using the height control sensor links.
NEXT -- Continue to next step.
4. PERFORM AUTOMATIC VEHICLE HEIGHT ADJUSTMENT USING TECHSTREAM
(a) Turn the power switch on (READY) and set the vehicle height in HI mode.
(b) Check that the HI mode light blinks and then remains on, and that the vehicle height control operation has finished.
(c) Set the vehicle height in N mode.
(d) Check that the N mode light blinks and then remains on, and that the vehicle height control operation has finished.
(e) Turn the power switch off.
(f) Connect the Techstream to the DLC3.
(g) Turn the power switch on (IG).
(h) Turn the Techstream on.
(i) Enter the following menus: Chassis / Air suspension / Utility / Height Offset.
(j) Following the Techstream display, input the values of "wheel of which the vehicle height sensor is to be adjusted", "actual measured vehicle height" and "vehicle height standard value (designed value)".
HINT
With the power switch on (IG) and the power switch off, perform automatic adjustment.
(k) Using the same procedure, perform "vehicle height sensor automatic adjustment" for the other height sensors.
NEXT -- Continue to next step.
5. PERFORM VEHICLE HEIGHT INSPECTION
(a) Turn the power switch on (READY) and set the vehicle height in HI mode.
(b) Check that the HI mode light blinks and then remains on, and that the vehicle height control operation has finished.
(c) Set the vehicle height in N mode.
(d) Check that the N mode light blinks and then remains on, and that the vehicle height control operation has finished.
(e) Check that the vehicle height is within the specification.
NEXT -- END
7. DESCRIPTION OF INITIALIZATION (Tire Pressure Warning System)
(a) Perform initialization in the following cases:
* Before delivery of a new vehicle.
* After replacement of the tire pressure warning ECU.*
* After replacement of a tire pressure warning valve and transmitter.*
* Specified tire pressure changes depending on the size or type of tire.
* When changing the tire inflation pressure by changing traveling speed or load weight, etc.
HINT
*: Perform initialization after the transmitter ID registration is completed.
(b) Before initialization
(1) Set the tire pressures of all tires to the specified values.
NOTICE:
Make sure the tires are cooled down.