Normal Operation
The Restraints Control Module (RCM) monitors the driver second row C-pillar and passenger front door side impact sensor and circuits for the following faults:
- Open circuit
- Short to voltage
- Short to ground
- Faulted driver second row C-pillar side impact sensor
- Faulted passenger front door side impact sensor
If a fault is detected, the RCM stores DTC B0092:11, B0092:93, B0096:11 or B0096:93 in memory and sends a message to the Instrument Panel Cluster (IPC) module to illuminate the air bag warning indicator.
The RCM communicates with each impact sensor, if the RCM is unable to communicate with the sensor, a DTC is stored in memory. A Continuous Memory Diagnostic Trouble Code (CMDTC) no operation (fault status :93) can be set by a short to voltage on the return circuit of the impact sensor.
A short to voltage on either impact sensor feed circuit sets DTCs B0092:93 and B0096:93.
| DTC Description | Fault Trigger Condition |
|---|---|
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When the RCM senses a shorted passenger front door side impact sensor, a shorted driver second row C-pillar side impact sensor, a short to ground on the passenger front door side impact sensor feed circuit or a short to ground on the driver second C-pillar side impact sensor feed circuit, a fault is indicated. |
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When the RCM senses a faulted driver second row C-pillar side impact sensor, a short to voltage on the feed or return circuit of the driver second row C-pillar side impact sensor, a short to voltage on the feed or return circuit of passenger front door side impact sensor or an open feed or return circuit of the passenger front door impact sensor, a fault is indicated. |
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When the RCM senses a shorted passenger front door side impact sensor, a shorted driver second row C-pillar side impact sensor, a short to ground on the passenger front door side impact sensor feed circuit or a short to ground on the driver second row C-pillar side impact sensor feed circuit, a fault is indicated. |
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When the RCM senses a faulted passenger front door side impact sensor, a short to voltage on the feed or return circuit of passenger front door side impact sensor, a short to voltage on the feed or return circuit of the driver second row C-pillar side impact sensor or an open feed or return circuit of the passenger front door side impact sensor, a fault is indicated. |
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Driver (C-pillar) side impact sensor
- Passenger front door side impact sensor
- RCM