Normal Operation and Fault Conditions
The Belt Tension Sensor (BTS) operates in conjunction with the OCS . The OCSM provides a reference voltage to the Belt Tension Sensor (BTS), which changes as it passes through the sensor, based on how much tension is applied to the safety belt and Belt Tension Sensor (BTS).
The OCSM monitors the Belt Tension Sensor (BTS) reference voltage circuit for the following faults:
- Short to voltage
- Short to ground
If a fault is detected, the OCSM stores DTC B00C2:11 or B00C2:12 in memory and sends a message to the RCM over the High Speed Controller Area Network (HS-CAN) indicating that an OCS fault is present. Upon receipt of this message, the RCM sets DTC B00A0:09 and sends a message to the IPC to illuminate the air bag warning indicator.
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B00C2:11 | Passenger Seat Occupant Classification Sensor "C": Circuit Short to Ground | A fault is indicated when the OCSM senses a short to ground on the Belt Tension Sensor (BTS) reference voltage circuit. |
| B00C2:12 | Passenger Seat Occupant Classification Sensor "C": Circuit Short to Battery | A fault is indicated when the OCSM senses a short to voltage on the Belt Tension Sensor (BTS) reference voltage circuit. |