Normal Operation - Occupant Classification System Module (OCSM)
The Occupant Classification System Module (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 17.2 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 Description | Fault Trigger Conditions |
|---|---|
|
This DTC sets if the RCM detects voltage below 9.5 volts with a Supplemental Restraint System (SRS) fault. |
|
This DTC sets if the RCM detects voltage above 16 volts with a SRS fault or above 20 volts without a SRS fault. |
|
This DTC sets if the OCSM detects voltage above 17.2 volts. |
|
This DTC sets if the OCSM detects voltage below 8 volts. |
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- RCM
- OCSM