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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 902 ((Front Air Suspension Control Module (ASCM) - Electrical Diagnostics - 2500 Hd & 3500 Hd)) >> Diagnosis And Testing >> C2212-00-Ecu In - Plant Mode >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

The Air Suspension Control Module (ASCM) has a special diagnostic mode called "in-plant mode". Whenever any ASCM diagnostic routine is run the ECU will stop normal operation and enter this mode. All leveling functions will be disabled while in this mode. This is so that the technician can work on the vehicle knowing that the air suspension will not automatically readjust itself. The Service Air Suspension Message will be displayed on the cluster when this fault is first active

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