Code
B009F
Generic
B — Body
Right Side Restraints Sensor 6
AI status
Completed
Completed
100%
Causes
- Faulty or failed right side restraints sensor (sensor #6)
- Open, shorted, or high-resistance wiring or connector in the sensor circuit
- Corroded or loose sensor connector or ground
- Water intrusion or physical damage to sensor or harness (seat area)
- Previously deployed airbag system not repaired correctly
- Faulty airbag/SRS control module or internal module software error
Symptoms
- SRS/airbag warning light illuminated on dash
- Possible side airbag or seat belt pretensioner disabled (warning message)
- Diagnostic trouble code B009F stored in airbag/SRS module
- Occasional or permanent fault depending on wiring/sensor condition
What to check
- Use an appropriate scan tool to read the SRS module for B009F and any related codes; record freeze-frame if available
- Visually inspect the sensor connector and wiring harness at the right side/seat area for damage, corrosion, or water entry
- With battery disconnected and proper wait time followed, check connector pins for corrosion, bent pins, or insulation chafing
- Check grounding points and continuity to module ground
- Verify vehicle has no prior unrepaired deployments and that seat or sensor replacements were coded/configured properly
Signal parameters
- SRS modules often use a reference voltage and ground for side impact sensors; verify reference present at connector with key ON (consult manufacturer data)
- Standby (key-on) sensor signal for many accelerometer sensors is a centered DC voltage — verify sensor output is stable and within manufacturer specified range
- Check wiring continuity between sensor and SRS module; look for short to power or ground
- Observe live data (if supported) for sensor #6 while gently moving/impacting seat to see expected signal change (use safe, gentle taps)
Diagnostic algorithm
- Read and record all SRS/airbag module codes and freeze-frame data using a qualified scan tool.
- Check for additional related DTCs that may point to wiring harness or module faults.
- Follow manufacturer safety procedures: disable ignition, disconnect battery negative, and wait the specified time before touching SRS components.
- Locate the right side restraints sensor #6 (seat/door/side module location per vehicle manual). Visually inspect sensor, bracket, and harness for physical damage or water intrusion.
- Disconnect the sensor connector and inspect terminals for corrosion, bent pins, or pushed-out terminals. Clean or repair as required.
- With battery reconnected and using proper scan tool and safety precautions, check for reference voltage, signal voltage, and ground at the sensor connector with key ON. Compare readings to manufacturer specs.
- Perform wiring continuity and resistance checks between the sensor connector and the SRS control module with battery disconnected. Check for short to ground or power.
- If wiring and connectors are good, replace the sensor with a known-good component and clear codes. Re-test for reappearance of the code.
- If a new sensor does not clear the code, investigate the SRS control module for faults or required software/configuration and consult manufacturer service info for module repair or reprogramming.
- After repair, clear codes and confirm proper SRS status and that no related fault codes remain.
Likely causes
- Connector damage, poor contact, or corrosion at the sensor (most common)
- Wiring abrasion or short to chassis near the seat or door hinge
- Failed sensor from impact, moisture, or age
- Problems in the SRS control module or a lost sensor configuration after replacement
Fault status
Status
Stored DTC B009F — Right Side Restraints Sensor 6 circuit or sensor fault detected by the airbag/SRS control module. SRS warning light illuminated.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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