| Brake switch position |
GSM |
Input from brake switch necessary to change gears. |
| Gear button data |
GSM |
Message sent to TRCM which gear is commanded. |
| Gear confirmation |
TRCM |
Input to GSM confirming gear selection. |
| PRNDS mode |
IPC |
Used for PRNDS 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. |