Active Height Control Suspension - Initialization

Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - SUSPENSION CONTROL


ACTIVE HEIGHT CONTROL SUSPENSION - INITIALIZATION

DESCRIPTION

If replacing the suspension control ECU and/or height control sensor, perform the vehicle height offset calibration.

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.

1.PERFORM VEHICLE HEIGHT INSPECTION

Adjust the pressure of the tires.

Stabilize the suspension by releasing the parking brake and bouncing the corners of the vehicle up and down.

Start the engine.

Perform the following operation twice:

Set the vehicle height to LO with the height control switch, and then return the vehicle height to NORMAL.

Turn the engine switch off.

Connect the intelligent tester to the DLC3.

Move the shift lever to N and move the vehicle forward and rearward.

Turn the engine switch on (IG) and the tester on.

Check that the vehicle height is NORMAL.

  • HINT:
  • The N of the multi-information display height control indicator in the combination meter turns on.
Active Height Control Suspension - Initialization. SUSPENSION CONTROL. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Perform the vehicle height inspection.

  • Measuring points:
  • A:
  • Ground clearance of front wheel center
  • B:
  • Ground clearance of the front adjusting cam bolt center
  • C:
  • Ground clearance of the rear axle shaft center
  • D:
  • Ground clearance of the rear lower control arm front side center
  • Standard Vehicle Height:
  • Front (A minus B)Rear (C minus D)
    101 mm (3.98 in.)94 mm (3.70 in.)

Using a jack, set the vehicle to the standard vehicle height and eliminate any difference in height between the left and right sides of the vehicle.

  • NOTICE:
  • The vehicle height may be outside the calibration range if there is a difference in height between the left and right sides of the vehicle.

Using the intelligent tester, enter the following menus: Chassis / AHC / Data List. Then read and record the values for "After Height Adjust" and "Height Adjust" for each wheel.

AHC
Tester DisplayMeasurement Item/RangeNormal ConditionDiagnosis Note
FR Height AdjustDisplay of vehicle height offset recorded value of front right wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)		--
FL Height AdjustDisplay of vehicle height offset recorded value of front left wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)		--
RR Height AdjustDisplay of vehicle height offset recorded value of rear right wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)		--
RL Height AdjustDisplay of vehicle height offset recorded value of rear left wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)		--
FR After Height AdjustDisplay of after-calibration vehicle height value of front right wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)		--
FL After Height AdjustDisplay of after-calibration vehicle height value of front left wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)		--
RR After Height AdjustDisplay of after-calibration vehicle height value of rear right wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)		--
RL After Height AdjustDisplay of after-calibration vehicle height value of rear left wheel /
min.: -3276.8 mm (-129 in.)
max.: 3276.7 mm (129 in.)		--

Turn the engine switch off.

NEXT
2.PERFORM VEHICLE HEIGHT OFFSET CALIBRATION
  • NOTICE:
  • The possible vehicle height automatic adjustment value is 20 mm (0.787 in.). If the "Height Adjust value + (Standard value - Measurement value - After Height Adjust value)" is 20 mm (0.787 in.) or more, first perform the vehicle height adjustment for the front side (), and for the rear side ().

Turn the engine switch off.

Connect the intelligent tester to the DLC3.

Turn the engine switch on (IG) and the tester on.

Enter the following menus: Chassis / AHC / Utility / Height offset.

For each wheel, follow the instructions on the tester screen and input the input value to complete the vehicle height offset calibration.

  • HINT:
  • Input value = Measurement value and standard value

Remove the jack.

Start the engine.

Set the vehicle height to LO and check that LO of the multi-information display height control indicator stops blinking and illuminates.

Set the vehicle height to NORMAL and check that N of the height control indicator stops blinking and illuminates.

Turn the engine switch off.

Perform the vehicle height inspection. Check that the result is within +/-8 mm (+/-0.315 in.) of the standard value.

Perform yaw rate and G sensor zero point calibration ().

NEXT
END