Park by Wire
| Item | Description |
|---|---|
| 1 | Park Lock Pawl Valve |
| 2 | Park Lock Pawl Solenoid |
| 3 | TR Sensor |
| 4 | Park Return Spring |
| 5 | Park Pawl Actuator rod |
| 6 | Park Pawl |
| 7 | Output Shaft and Planetary Carrier |
- Uses a GSM with push buttons in place of a mechanical shifter as the customer interface for selecting (P, R, N, D, M).
- The transmission hydraulic controls are modified using a park lock pawl valve connected to the park rod which unlocks and locks the parking pawl from the carrier.
- Uses clutch B and D hydraulic pressure to push the system out of Park.
- Once out of Park, clutches A, B, C, D or F can continue to hold the system out of Park.
- A park lock pawl solenoid is used to allow the system to remain out of Park when the engine is not running.
- The dual TR sensors indicate the state of the Park system and are not used to determine customer selected range, which is now provided by the GSM.
- A mechanical P override has been provided for in-plant use and towing. This consists of a lever on the side of the transmission that can be bolted into one of 2 positions, normal operating position or park override position. In the override position the park lock pawl valve is held in the applied position to keep the parking pawl unlocked from the carrier.