Normal Operation
WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
The impact sensor(s) provide data to the Restraints Control Module (RCM) for use in calculating impact severity. This is accomplished using various electrical and electro-mechanical sensor(s) throughout the vehicle.
The RCM checks all of the impact sensor circuits for faults. If the RCM detects one of the following faults on any of the impact sensor circuits, it will store DTC B2296 in memory and, depending on the fault, flash a LFC on the air bag warning indicator.
| Fault PIDsa | Description | Fault Trigger Condition |
|---|---|---|
| 2296_3_OD and 2296_3_OD | Driver/Center Front Crash Sensor Circuit Short to Battery | When the Restraints Control Module (RCM) senses a short to voltage on the driver/center front impact sensor circuits, a fault will be indicated. |
| 2296_4_OD and 2296_4_OD | Driver/Center Front Crash Sensor Circuit Short to Ground | When the RCM senses a short to ground on the driver/center front impact sensor circuits, a fault will be indicated. |
| 2296_5_OD and 2296_5_OD | Driver/Center Front Crash Sensor Communication Fault | When the RCM is unable to communicate with the driver/center front impact sensor, a fault will be indicated. |
| 2296_12_OD and 2296_12_CM | Side Crash Sensor Circuit Short to Battery, Front Passenger Side | When the RCM senses a short to voltage on the passenger side first row impact sensor circuits, a fault will be indicated. |
| 2296_13_OD and 2296_13_CM | Side Crash Sensor Circuit Short to Ground, Front Passenger Side | When the RCM senses a short to ground on the passenger side first row impact sensor circuits, a fault will be indicated. |
| 2296_14_OD and 2296_14_CM | Side Crash Sensor Communication Fault, Front Passenger Side | When the RCM is unable to communicate with the passenger side first row impact sensor, a fault will be indicated. |
| 2296_15_OD and 2296_15_CM | Side Crash Sensor Circuit Short to Battery, Front Driver Side | When the RCM senses a short to voltage on the driver side first row impact sensor circuits, a fault will be indicated. |
| 2296_16_OD and 2296_16_CM | Side Crash Sensor Circuit Short to Ground, Front Driver Side | When the RCM senses a short to ground on the driver side first row impact sensor circuits, a fault will be indicated. |
| 2296_17_OD and 2296_17_CM | Side Crash Sensor Communication Fault, Front Driver Side | When the RCM is unable to communicate with the driver side first row impact sensor, a fault will be indicated. |
| 2296_18_OD and 2296_18_CM | Driver/Center Front Crash Sensor Internal Fault | When the RCM senses a internal failure with the driver/center front impact sensor, a fault will be indicated. |
| 2296_19_OD and 2296_19_CM | Driver/Center Front Crash Sensor Mount or Communication Fault | When the RCM is unable to communicate with the driver/center front impact sensor, a fault will be indicated. |
| 2296_28_OD and 2296_28_CM | Side Crash Sensor Internal Fault, Front Passenger Side | When the RCM senses a internal failure with the passenger side first row impact sensor, a fault will be indicated. |
| 2296_29_OD and 2296_29_CM | Side Crash Sensor Mount or Communication Fault, Front Passenger Side | When the RCM is unable to communicate with the driver side first row impact sensor, a fault will be indicated. |
| 2296_30_OD and 2296_30_CM | Side Crash Sensor Internal Fault, Front Driver Side | When the RCM senses a internal failure with the driver/center front impact sensor, a fault will be indicated. |
| 2296_31_OD and 2296_31_CM | Side Crash Sensor Mount or Communication Fault, Driver Front | When the RCM is unable to communicate with the driver side first row impact sensor, a fault will be indicated. |
| 2296_55_OD and 2296_55_OD | Passenger Front Crash Sensor Circuit Short to Battery | When the RCM senses a short to voltage on the passenger front impact sensor circuits, a fault will be indicated. |
| 2296_56_OD and 2296_56_OD | Passenger Front Crash Sensor Circuit Short to Ground | When the RCM senses a short to ground on the passenger front impact sensor circuits, a fault will be indicated. |
| 2296_57_OD and 2296_57_CM | Passenger Front Crash Sensor Communication Fault | When the RCM is unable to communicate with the driver side first row impact sensor, a fault will be indicated. |
| 2296_58_OD and 2296_58_CM | Passenger Front Crash Sensor Internal Fault | When the RCM senses a internal failure with the passenger front impact sensor, a fault will be indicated. |
| 2296_59_OD and 2296_59_CM | Passenger Front Crash Sensor Mount or Communication Fault | When the RCM is unable to communicate with the passenger front impact sensor, a fault will be indicated. |
a Fault PIDs that end in OD indicate an on-demand status and are associated with on-demand DTC B2296. Fault PIDs that end in CM indicate continuous memory status and are associated with continuous DTC B2296.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Impact sensor
- Incorrect sensor mounting
- RCM