Air Suspension Control Module - Installation

INSTALLATION






1. Install the Air Suspension Control Module (ASCM) (2) onto the mounting bracket.





2. Connect the wire harness connectors (2) to the ASCM.

3. Connect the negative battery cable Battery Cables - Installation.

4. Position the left front seat to its full forward position.





5. Install ASCM fasteners (2) to the mounting bracket and tighten to 9 Nm (80 in. lbs.).

6. Perform the Curb Height Measurement to get values for input to the scan tool in the next step Service and Repair

NOTE:
Make sure the scan tool preferences are set to metric. When writing the measured values to the Air Suspension Control Module (ASCM) they will need to be in millimeters.

7. With a scan tool, using the routines under the ASCM, perform the following:

- Command the vehicle to Normal Ride Height (NRH).

- Perform the Curb Height Measurement and record the values for input to the scan tool Service and Repair.

- Perform the Write Suspension Height Values routine and input measurements recorded as prompted by scan tool.

- Command the vehicle to Normal Ride Height (NRH) again.

- Perform the Curb Height Measurement again and verify specifications Service and Repair.

- Run the Air Mass Calculation routine on the air suspension system.

- If necessary, add to the system or deflate to atmosphere using the ASCM routines, then repeat the Air Mass Calculation routine again until the system responds with Air Mass OK (188 to 216 bar-liters).

- Run the Height Sensor Check routine on the air suspension system.

- Enable the air suspension system.

8. Perform the ASCM VERIFICATION TEST ASCM Verification Test.