System Diagram
Network Message Chart
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| Brake switch position | GSM | Input from brake switch necessary to change gears. |
| Gear data | GSM | Message sent to TRCM which gear is commanded. |
| Gear confirmation | TRCM | Input to GSM confirming gear selection. |
| PRNDL mode | IPC | Used for PRNDL display. |
| Gear command | PCM | Input to change gears. |
| Key in ignition status | BCM | Input used to change gears. |
| Neutral tow command | PCM | Input used to enter neutral tow. |
| Vehicle lock status | BCM | Input used to move transmission out of P. |
| Seat belt buckle data | RCM | Input from seat belt buckle to determine driver presence. |