Component Tests and General Diagnostics

Proper diagnosis and testing of the airbag system components, the Chrysler Collision Detection (CCD) data bus, the data bus message inputs to and outputs from the ElectroMechanical Instrument Cluster (EMIC) or the Airbag Control Module (ACM), as well as the retrieval or erasure of a Diagnostic Trouble Code (DTC) from the ACM requires the use of a DRBIII scan tool. Refer to the appropriate diagnostic information.

System Diagnostics
* Fault detection is through active and stored Diagnostic Trouble Codes (DTC's)
* DTC's are displayed by the DRB III (R).
* Active DTC's are those which currently exist in the system.
* The condition causing the fault must be repaired in order to clear this type of DTC.
* Stored DTC's are those which occurred in the system since the A/C-Heater Control Module received the last "clear diagnostic info" message.


System Controls
* is fully addressable with the DRB III (R).
* The ACM and the EMIC each contain a central processing unit and programming that allow them to communicate with each other using the Chrysler Collision Detection (CCD) data bus network. This method of communication is used for control of the airbag indicator on all models.

Refer to Body Control System.
Body Control Module

Refer to Chrysler Collision Detection (CCD) data bus network.
Information Bus


* Refer to these systems for the trouble code / symptom diagnostic procedures.