Controller Area Network (Can)

The high speed CAN broadcast bus network is used to connect the powertrain modules. The CAN bus is connected between the following electronic units:

High Speed CAN Bus

• TCM
• Instrument cluster
• Steering angle sensor
• Restraints control module
• Engine Control Module (ECM)
• ABS module
• Adaptive Front lighting System (AFS) control module
• Diagnostic socket.

The CAN bus allows a fast exchange of data between modules. The CAN bus comprises two wires which are identified as CAN high (H) and CAN low (L). The two wires are colored yellow/black (H) and yellow/brown (L) and are twisted together to minimize electromagnetic interference (noise) produced by the CAN bus messages.

For additional information, refer to: Communications Network

In the event of CAN bus failure, the following symptoms may be observed:

• Transmission operates in default mode
• Torque converter lock-up clutch control is disabled
• Gear position indication in instrument cluster LCD inoperative (this will also occur with any transmission fault).