Calibration

SUSPENSION CONTROL: AIR SUSPENSION SYSTEM: CALIBRATION

1. VEHICLE HEIGHT OFFSET CALIBRATION

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 Pressure, Vacuum and Temperature Specifications.

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 Front Wheel Alignment for front and Rear Wheel Alignment for rear).

(n) Calculate the absolute value of "Height Adjust" + (standard vehicle height - measurement vehicle height - "After Height Adjust" ) Front Wheel Alignment and Rear Wheel Alignment for standard vehicle height).

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 Suspension Control System for front and Suspension Control System for rear).

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 Front Wheel Alignment for front and Rear Wheel Alignment for rear).

NEXT -- END