Normal Operation
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
The Occupant Classification System Module (OCSM) monitors the pressure sensor and circuity for faults. If a fault is detected, the OCSM will store DTC B2290 in memory and send a message to the Restraints Control Module (RCM). The RCM which will store DTC B00A0:09 in memory and send a message to the Instrument Cluster (IC) module to illuminate the air bag warning indicator.
The Occupant Classification Sensor (OCS) system components are not to be installed separately.
DTC C1941 will set when System Reset fails to complete the testing. DTC C1941 will clear upon a successful System Reset.
ITEM DESCRIPTION
| Fault PIDs (1) | Description | Fault Trigger Condition | ||
|---|---|---|---|---|
| 2290_12_OD and 2290_12_CM | Passenger Seat OCS Sensor No. 1 Circuit Short to Battery | When the OCSM senses a short to voltage on the bladder pressure sensor VREF and/or signal circuit, a fault will be indicated. | ||
| 2290_13_OD and 2290_13_CM | Passenger Seat OCS Sensor No. 1 Circuit Short to Ground | When the OCSM senses a short to ground on the bladder pressure sensor circuits, a fault will be indicated. | ||
| 2290_15_OD and 2290_15_CM | Passenger Seat OCS Sensor No. 1 Internal Fault | When the OCSM senses a internal failure with the bladder pressure sensor, a fault will be indicated. | ||
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- DTC C1941 (Zero Seat Weight Test Failure) - This DTC will set if the OCSM is unable to complete a successful System Reset. All other OCS system DTCs must be diagnosed and repaired before carrying out the OCS system reset.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Faulty OCS system component
- Pressure sensing fault
- Mounting condition