Normal Operation
The occupant classification sensor (OCS) system is used to classify the front passenger seat occupant in the event of a deployable impact. Refer to Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) .
The OCSM monitors internal circuity, hardware and the 4 OCS weight sensor bolts and circuitry for faults. If the OCSM detects a fault with the internal circuitry, internal hardware, sensor(s) or circuitry, it will store diagnostic trouble code (DTC) B1342 in memory and send a message to the restraints control module (RCM). The RCM will store DTC B2290 in memory and send a message to the instrument cluster module to illuminate the air bag warning indicator.
| Fault PIDsa | Description | Fault Trigger Condition |
|---|---|---|
| 1342_27_OD and 1342_27_CM | Memory Fault | When the occupant classification system module (OCSM) senses a internal hardware failure, a fault will be indicated. |
| 1342_28_OD and 1342_28_CM | Microcontroller Internal Fault | When the OCSM senses a internal failure, a fault will be indicated. |
| 1342_29_OD and 1342_29_CM | Satellite ASIC Fault | When the OCSM senses a internal hardware failure, a fault will be indicated. |
| 1342_30_OD and 1342_30_CM | Power Supply Internal Fault | When the OCSM senses a failure with the internal power supply, a fault will be indicated. |
a Fault PIDs that end in OD indicate an on-demand status and are associated with on-demand DTC B1342. Fault PIDs that end in CM indicate continuous monitor status and are associated with continuous DTC B1342.
This pinpoint test is intended to diagnose the following:
- Damaged wiring, terminals or connectors
- A faulted OCS system component