Normal Operation and Fault Conditions
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The RCM transmits an event notification signal which communicates crash status and SRS deployment status to the BCM. When the BCM receives an event notification signal which indicates a crash, it initiates fuel cut-off.
The RCM monitors the event notification signal circuit for the following faults:
- Short to voltage
- Short to ground
- Open circuit
If a fault is detected, the RCM stores DTC B11D8:12 or B11D8:14 in memory. The airbag warning indicator does not illuminate if B11D8:12 or B11D8:14 is set.
PPT P RCM DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B11D8:12 | Restraint Event Notification: Circuit Short to Battery | Sets when the RCM senses a short to voltage from the event notification signal circuit for more than 15 seconds. |
| B11D8:14 | Restraint Event Notification: Circuit Short to Ground or Open | Sets when the RCM senses a short to ground or an open from the event notification signal circuit for more than 15 seconds. |