Medium Speed Controller Area Network (MS-CAN) Operation

The MS-CAN communicates using bussed messages. The MS-CAN has an unshielded twisted pair cable, data bus (+) and data bus (-) circuits. In addition to scan tool communication, this network allows sharing of information between all modules on the network.

The MS-CAN is a medium speed communication network used for the following modules:

• Accessory Protocol Interface Module (APIM) (if equipped)
• Audio Control Module (ACM)
• Front Controls Interface Module (FCIM) (if equipped)
• Front Display Interface Module (FDIM)
• HVAC module
• Instrument Cluster (IC)
• Satellite Digital Audio Receiver System (SDARS) module (if equipped)
• Smart Junction Box (SJB)