Component Description: Notes

To change gear position the driver selects PRN or D by pressing the appropriate button on the GSM. The GSM senses the selection and sends a request over the Subnet Network and the High Speed Controller Area Network 2 (HS2-CAN), through the GWM over the High Speed Controller Area Network 1 (HS1-CAN) to the PCM. The PCM receives the input from the GSM, combines in vehicle conditions and moves the transmission to the commanded position. The PCM reads the TR sensor and confirms the correct position has been achieved.

There is a redundant Transmission Controller Area Network (TRANS-CAN) that allows the GSM to communicate directly with the PCM in the event of a malfunction in the HS1-CAN, the HS2-CAN or the GWM.