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Home >> Jeep >> 2012 >> Grand Cherokee 4WD V8-5.7L >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Steering and Suspension >> Relays and Modules - Suspension >> Suspension Control Module >> Service and Repair >> Air Suspension Control Module - Installation
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Air Suspension Control Module - Installation





INSTALLATION





1. Slide the Air Suspension Control Module (ASCM) (2) into position making sure the latches secure the ASCM.
2. Connect the wire harness connectors to the ASCM (2).
3. From behind/under the LF seat, install the cover panel on the electronic module tub (4).
4. Connect the negative battery cable Negative Cable.
5. Perform the Curb Height Measurement to get values for input to the scan tool in the next step Wheel Alignment Procedures

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.

6. 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 Wheel Alignment Procedures.
- 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 Wheel Alignment Procedures.
- 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.

7. Perform the ASCM VERIFICATION TEST ASCM Verification Test.

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