AIR SUSPENSION SYSTEM INITIALIZATION

Note

If replacing the suspension control ECU and height control sensor sub-assembly, perform the vehicle height offset calibration.


  1. VEHICLE HEIGHT OFFSET CALIBRATION


    1. Perform vehicle height inspection.

      for 2WD: Click here

      for AWD: Click here

    2. Perform vehicle height offset calibration.


      1. Turn the engine switch off.

      2. Connect the GTS to the DLC3.

      3. Turn the engine switch on (IG).

      4. Using the GTS, Enter the following menus: Chassis / Air suspension / Data List. Then read and write the values for "Height Adjust" and "Height After the Adjustment" values of each wheel.


        Chassis > Air suspension > Data List
        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        FR Height Adjust Display of vehicle height offset recorded value of front right wheel

        Min.: -3276.8 mm (-129 in.)

        Max.: 3276.7 mm (129 in.)

        		 - -
        FL Height Adjust Display of vehicle height offset recorded value of front left wheel

        Min.: -3276.8 mm (-129 in.)

        Max.: 3276.7 mm (129 in.)

        		 - -
        RR Height Adjust Display of vehicle height offset recorded value of rear right wheel

        Min.: -3276.8 mm (-129 in.)

        Max.: 3276.7 mm (129 in.)

        		 - -
        RL Height Adjust Display of vehicle height offset recorded value of rear left wheel

        Min.: -3276.8 mm (-129 in.)

        Max.: 3276.7 mm (129 in.)

        		 - -
        FR Height After the Adjustment Display of after-calibration vehicle height value of front right wheel

        Min.: -3276.8 mm (-129 in.)

        Max.: 3276.7 mm (129 in.)

        When vehicle height normal: 0 +/-20 mm (0 +/-0.787 in.)

        When vehicle height changing: Varies based on vehicle height

        After HEIGHT HIGH adjustment: 20 +/-20 mm (0.787 +/-0.787 in.)

        		 -
        FL Height After the Adjustment Display of after-calibration vehicle height value of front left wheel

        Min.: -3276.8 mm (-129 in.)

        Max.: 3276.7 mm (129 in.)

        When vehicle height normal: 0 +/-20 mm (0 +/-0.787 in.)

        When vehicle height changing: Varies based on vehicle height

        After HEIGHT HIGH adjustment: 20 +/-20 mm (0.787 +/-0.787 in.)

        		 -
        RR Height After the Adjustment Display of after-calibration vehicle height value of rear right wheel

        Min.: -3276.8 mm (-129 in.)

        Max.: 3276.7 mm (129 in.)

        When vehicle height normal: 0 +/-20 mm (0 +/-0.787 in.)

        When vehicle height changing: Varies based on vehicle height

        After HEIGHT HIGH adjustment: 20 +/-20 mm (0.787 +/-0.787 in.)

        		 -
        RL Height After the Adjustment Display of after-calibration vehicle height value of rear left wheel

        Min.: -3276.8 mm (-129 in.)

        Max.: 3276.7 mm (129 in.)

        When vehicle height normal: 0 +/-20 mm (0 +/-0.787 in.)

        When vehicle height changing: Varies based on vehicle height

        After HEIGHT HIGH adjustment: 20 +/-20 mm (0.787 +/-0.787 in.)

        		 -

        Chassis > Air suspension > Data List
        Tester Display
        FR Height Adjust
        FL Height Adjust
        RR Height Adjust
        RL Height Adjust
        FR Height After the Adjustment
        FL Height After the Adjustment
        RR Height After the Adjustment
        RL Height After the Adjustment

        Note

        The possible vehicle height automatic adjustment value is 25 mm (0.984 in.). If the "Height Adjust value + (Standard value - Measurement value - After Height Adjust value)" is 25 mm (0.984 in.) or more, first perform the vehicle height adjustment (height control link adjustment).

        Click here

      5. Enter the following menus: Chassis / Air suspension / Utility / Height Offset.


        Chassis > Air suspension > Utility
        Tester Display
        Height Offset

      6. Select the wheel to perform adjustment of the height control sensor sub-assembly.

      7. According to the screen display, input the measurement value and input value to complete adjustments.

        Tech Tips

        Input values should be rounded off to the nearest integer.

      8. Using the Data List, confirm that the vehicle height control operation is complete.


        Chassis > Air suspension > Data List
        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        Height Control Vehicle height control condition ON or OFF - -

        Chassis > Air suspension > Data List
        Tester Display
        Height Control

    3. Perform vehicle height inspection.

      for 2WD: Click here

      for AWD: Click here


      1. Check that the standard value is within +/- 14.3 mm (+/-0.563 in.).

    4. END