Normal Operation - OCSM
The OCSM continuously monitors the input voltage for correct operation. If the OCSM detects input voltage below 8 volts, it stores DTC U3003:16 in memory. If the OCSM detects input voltage above 18 volts, it stores DTC U3003:17 in memory. If the OCSM sets DTC U3003:16 or U3003:17, it sends a fault message to the RCM. The RCM then sends a message to the IPC to illuminate the air bag warning indicator.
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | This DTC sets if the RCM detects voltage below 9.5 volts with a SRS fault. |
| U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | This DTC sets if the RCM detects voltage above 16 volts with a SRS fault or above 20 volts without a SRS fault. |
| U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | This DTC sets if the OCSM detects voltage below 8 volts with a SRS fault. |
| U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | This DTC sets if the OCSM detects voltage above 18 volts. |