Transmission Control Switch
| Item | Description |
|---|---|
| 1 | Selector lever |
| 2 | Unlock trigger |
| 3 | Park (P) switch |
| 4 | Light Emitting Diode (LED) display |
| 5 | Mounting holes |
| 6 | Electrical connector |
The Transmission Control Switch (TCS) is installed in the floor console and controls the driver transmission selections.
The TCS allows the transmission to be operated as a conventional automatic unit by selecting:
- Park (P)
- Reverse (R)
- Neutral (N)
- Drive (D).
The TCS is fully electronic selector lever type transmission selector with no mechanical connection to the transmission.
Movement of the TCS to any of the four positions, or operation of the P switch is sensed by the TCS. The sensed position is passed to the Transmission Control Module (TCM) via the High Speed (HS) Controller Area Network (CAN) powertrain systems bus. The TCM then reacts according to the new selection request made by the driver. The linear movement of the TCS is sensed by a magnetic system using multiple Hall effect sensors to determine the position of the selector. The TCS P and the unlock trigger use double pole elastomeric switches.
The Sport(S) position selection allows the TCM to operate the transmission using the semi-automatic sequential shift. Gear selections are sensed by the TCM when the driver operates the steering wheel paddle switches or moves the TCS to the '+' or '-' positions.
The TCS allows the driver to operate the transmission similar to a sequential transmission. Once the TCS position is confirmed, the TCM outputs appropriate information on the FlexRay systems bus to the Body Control Module/Gateway Module (BCM/GWM). The information is received by the instrument cluster to display the gear selection information in the message center.
UNLOCK TRIGGER
The TCS unlock trigger must be pressed to select any gear, including Neutral (N) from the Park (P) position.
The unlock trigger must also be pressed to select any driving gear from the Reverse (R), Neutral (N) or Drive (D) positions. Pressing the unlock trigger is not required to select Park.