B0094

Code

Generic B — Body

Center Frontal Restraints Sensor

Brand: Generic

Type: B — Body

Views: UK: 23 EN: 66 RU: 35

AI status

Completed

ready

Completed 100%

Page language: EN

Causes

Corroded, loose, or damaged connector at the center frontal restraints sensor
Open or shorted wiring harness between sensor and SRS control module
Failed center frontal restraints sensor
Faulty SRS control module or internal electronics
Recent impact or improper sensor replacement/installation
Low or unstable battery voltage or poor ground connection

Symptoms

SRS / airbag warning lamp ON or flashing
Possible disabled airbag system (airbag light stays on)
Related DTCs for other airbag sensors or circuit faults
Vehicle may fail safety inspection due to active airbag light
No obvious drivability symptoms (electrical/safety only)

What to check

Verify SRS warning lamp behavior and read all stored codes with a capable scan tool
Check battery voltage and charging system; ensure stable 12V supply before SRS work
Visually inspect sensor, mounting, and harness for damage, corrosion, or loose connectors
Verify proper ground and continuity from sensor ground to chassis
Check for recent repairs or modifications around center console, seats, or dash
Review freeze frame and event data for crash events or history

Signal parameters

Supply voltage: nominal 10–16 V (verify stable 12 V with ignition ON)
Sensor reference/return: continuity to SRS module ground expected (low ohms)
Signal line: expected resistance or voltage per factory specification (typically low impedance)
CAN/SW communication: SRS module should see sensor status messages when equipped
No short to battery or short to ground on sensor signal circuits

Diagnostic algorithm

Read and record all SRS codes, freeze frame, and status with an appropriate scan tool. Note if code is current or historic.
Before any inspection or repair, follow safety procedures: disable SRS (disconnect battery negative and wait manufacturer-specified time, commonly 90 seconds to 10 minutes) and use static-safe handling.
Visually inspect the center frontal restraints sensor, its connector, and surrounding harness for corrosion, bent pins, damage, or loose mounting. Repair or reseat connector if necessary.
With battery reconnected and using a diagnostic scanner, perform power/ground checks at the sensor connector: verify battery voltage at supply pin with ignition ON and verify good ground continuity.
Check continuity and resistance of sensor signal and reference wires back to the SRS control module using wiring diagrams. Look for opens, shorts to ground, and shorts to battery.
Wiggle test wiring and connectors while monitoring live data or DTCs to reveal intermittent faults.
If wiring and connectors are good, compare measured sensor resistance/voltage values to factory specifications. If out of spec, replace the center frontal restraints sensor.
If sensor replacement does not clear the fault, inspect or test the SRS control module and associated connectors; consider module reprogramming or replacement per manufacturer guidance.
After repairs, clear codes and perform SRS system self-tests. Confirm that the airbag warning lamp extinguishes and that no new or returning codes are present.
If uncertainty remains, consult manufacturer service information for module-specific tests, harness repair procedures, and required resets or calibrations.

Likely causes

Connector pushed out, pins bent, or corrosion at sensor plug
Broken or chafed wiring under center console or dash
Sensor dropped or mechanically damaged during service
Aftermarket equipment or seat/console removal disturbed harness
Intermittent module communication due to weak battery or poor ground

Fault status

⚠️ Status

Fault reported for center frontal restraints sensor circuit. SRS/airbag warning lamp likely illuminated. Condition may be current (active) or stored (historic); further diagnostics required to identify intermittent faults.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.0 - 2.5 hours