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)
• Audio control module (ACM)
• Driver seat module (DSM) (if equipped)
• HVAC module
• Instrument cluster (IC)
• Liftgate/trunk module (LTM) (if equipped)
• Rear entertainment module (RETM) (if equipped)
• Satellite digital audio receiver system (SDARS) module (if equipped)
• Smart junction box (SJB)