Communications Network: Notes
Vehicle communication utilizes a high speed controller area network (HS-CAN), International Standards Organization (ISO) 9141 network, standard corporate protocol (SCP) network and universal asynchronous receiver/transmitter (UART) based protocol (UBP) network. Information is sent to and from individual control modules that each control specific functions. All 4 networks are connected to the data link connector (DLC). The DLC can be found under the instrument panel between the steering column and the audio unit.
The 4 module communication networks are:
- High speed (HS) CAN
- ISO 9141
- Standard corporate protocol (SCP)
- UART-based protocol (UBP)
ISO 9141 is for diagnostic use only while SCP, UBP and CAN allow multiple modules to communicate, or transfer data, with each other on a common network.
| Module Name | Network Type | Termination Module |
|---|---|---|
| Anti-lock brake system (ABS) module | HS-CAN | No |
| Climate controlled seat module (DCCSM and PCCSM) (if equipped) | UBP | N/A |
| Drivers seat module (DSM) (if equipped) | UBP | N/A |
| Electronic automatic temperature control (EATC) module (if equipped) | SCP and UBP | N/A |
| Electronic manual temperature control (EMTC) module (if equipped) | SCP | N/A |
| Instrument cluster (gateway module) | HS-CAN and SCP | Yes |
| Parking aid module (PAM) (if equipped) | ISO 9141 | N/A |
| Powertrain control module (PCM) | HS-CAN | Yes |
| Power liftgate (PLG) module | ISO 9141 | N/A |
| Power sliding door modules (RPSDM and LPSDM) (if equipped) | ISO 9141 | N/A |
| Restraints control module (RCM) | ISO 9141 | N/A |
| Smart junction box (SJB) | SCP | Yes |
| Speed control actuator (SCA) | SCP | N/A |