B1415:81, B1418:11, B1418:81, B1418:93: Notes
Refer to SUPPLEMENTAL RESTRAINT SYSTEM for schematic and connector information.
Normal Operation and Fault Conditions
The RCM monitors the passenger front door and LH C-pillar side impact sensors and circuits for the following faults:
- Open circuit
- Short to voltage
- Short to ground
- Faulted passenger front door side impact sensor
- Faulted LH C-pillar side impact sensor
If a fault is detected, the RCM stores DTC B1415:81, B1418:11, B1418:81 or B1418:93 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 Continuous Memory Diagnostic Trouble Code (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.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1415:81 | Driver Side Restraints Sensor 2: Invalid Serial Data Received | A fault is indicated when the RCM senses a faulted LH C-pillar side impact sensor or an open on the LH C-pillar side impact sensor circuits. |
| B1418:11 | Passenger Side Restraints Sensor 1: Circuit Short to Ground | A fault is indicated when the RCM senses a shorted passenger front door side impact sensor, a shorted LH 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 LH C-pillar side impact sensor feed circuit. |
| B1418:81 | Passenger Side Restraints Sensor 1: Invalid Serial Data Received | A fault is indicated when the RCM senses a faulted passenger front door side impact sensor or an open on the passenger front door side impact sensor circuits. |
| B1418:93 | Passenger Side Restraints Sensor 1: No Operation | A fault is indicated when the RCM senses a faulted LH C-pillar side impact sensor or passenger front door side impact sensor, or a short to voltage on the feed or return circuit of the LH C-pillar side impact sensor or passenger front door side impact sensor. |
Possible Sources
- Wiring, terminals or connectors
- Passenger front door side impact sensor
- LH C-pillar side impact sensor
- RCM
Visual Inspection and Diagnostic Pre-checks
- Inspect for damaged wiring harness(es).