Normal Operation and Fault Conditions

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The RCM monitors the driver door and the second row right side impact sensors and circuits for the following faults:

Open circuit
Short to voltage
Short to ground
Faulted driver door side impact sensor
Faulted second row right side impact sensor

NOTE: The second row right side impact sensor also known as the right C-pillar side impact sensor.

If a fault is detected, the RCM stores DTC B1414:11, B1414:12, B1414:13, B1414:96, B1419:11, B1419:12, B1419:13 or B1419:96 in memory and sends a message to the IPC to illuminate the airbag 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 CMDTC no operation (failure type: 93) can be set by a short to voltage on the return circuit of the impact sensor.

When the feed circuit of either impact sensor is shorted to voltage, an invalid data received fault (failure type:81) may also be present for both sensors.

PPT X RCM DTC FAULT TRIGGER CONDITIONS

DTC	Description	Fault Trigger Conditions
B1414:11	Driver Side Restraints Sensor 1: Circuit Short to Ground	Sets when the RCM senses a shorted driver door side impact sensor, a shorted right C-pillar side impact sensor, a short to ground from the driver door side impact sensor feed circuit or a short to ground from the right C-pillar side impact sensor feed circuit.
B1414:81	Driver Side Restraints Sensor 1: Invalid Serial Data Received	Sets when the RCM senses a faulted driver door side impact sensor or an open driver door side impact sensor circuit.
B1414:93	Driver Side Restraints Sensor 1: No Operation	Sets when the RCM senses a faulted right C-pillar side impact sensor or driver door side impact sensor, or a short to voltage from the feed or return circuit of the right C- pillar side impact sensor or driver door side impact sensor.
B1419:81	Passenger Side Restraints Sensor 2: Invalid Serial Data Received	Sets when the RCM senses a faulted right C-pillar side impact sensor or an open right C-pillar side impact sensor circuit.