Front Ride Height Resetting-Clear B2140 DTC

1. Turn the ignition key OFF and turn it back to RUN; exit the vehicle, close all doors and allow the system to vent the vehicle down to kneel height (approximately 30 seconds).
2. Connect scan tool to the Data Link Connector (DLC).
3. Select the proper vehicle year, model and engine type.
4. Select 4WAS-AIR SUSP/EVO (4x2 and 4x4) module.
5. Select "Parameter Reset Command (Clear Ride Height) under Active Command Modes" menu, trigger through the warning messages and reset (trigger from OFF to ON):
- scan tool version 10.0- "Front" and "Rear."
- scan tool version 11.0+- "Front CLR."
6. Back out the torsion bar adjustment bolt (approximately 40 mm from the bolt head to the bottom surface of the torsion bar adjuster).
7. Deflate the front air shocks by using the scan tool "Vent Front" command in "Air Suspension Control" menu (should take about 30 seconds), and jounce the front of the vehicle to fully lower the front of the vehicle.
8. Adjust and measure the vehicle ride height.

9. Note: Do not save rear ride heights. The air suspension control module has precalibrated values already stored. Refer to Rear Ride Height Mechanical Resetting.

Select the "Save Calibration Values (Store Ride Height)" scan tool command to calibrate the air suspension control module. Trigger through the warning message(s) and save "FRONT" (trigger from OFF to ON).