Network Message Chart
BCM Network Input Messages
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| PATS start request target data | PCM | The PCM sends the BCM a challenge request for a valid ID. |
PCM Network Input Messages
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| PATS control command | BCM | The response from the BCM supplying the PCM challenge ID. If the BCM ID response is incorrect, then PATS prevents the vehicle from starting. |