Home / DTC / B009E — Right Side Restraints Sensor 5

B009E — Right Side Restraints Sensor 5

Detailed page for trouble code B009E.

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Code

B009E

Generic B — Body

Right Side Restraints Sensor 5

Brand: Generic
Type: B — Body
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Open or short in sensor harness (wiring or connector)
  • Corroded/damaged sensor connector or pins
  • Failed right-side restraints sensor (accelerometer/impact or seatbelt buckle sensor)
  • Faulty SRS/airbag control module or internal software error
  • Previous crash damage or deployment that damaged sensor or wiring
  • Intermittent contact due to moisture, chafing or broken wire

Symptoms

  • SRS/airbag warning lamp illuminated on dash
  • Possible passenger airbag disablement or restraint system deactivation messages
  • Related restraint system DTCs present
  • Possible failure to record/communicate crash event from right side sensor

What to check

  • Read and record all stored SRS/airbag DTCs and freeze frame data with a qualified scan tool
  • Visual inspection of right-side sensor, mounting and wiring harness for damage, corrosion or loose connectors
  • Check vehicle history for prior collisions or airbag deployments
  • Backprobe sensor connector and monitor live data while gently moving harness to reproduce fault
  • Measure sensor supply and signal voltages and compare to expected values
  • Perform continuity and resistance checks from sensor connector back to SRS control module pins

Signal parameters

  • Typical sensor supply: 9–16 V (vehicle battery) to SRS sensors or module-dependent; verify with OEM data
  • Typical sensor signal (analog/accelerometer): ~0.5–4.5 V under normal conditions — check OEM spec
  • Expected CAN/serial message rate from sensor/module: periodic updates (manufacturer-specific, commonly 5–100 Hz) — compare to live data
  • Resistance: open circuit if >10 kΩ or short if near 0 Ω between signal and ground/12V — consult service manual for exact values

Diagnostic algorithm

  1. Connect a capable SRS scan tool, record all codes and live data, and note related DTCs or crash data.
  2. Visually inspect right-side sensor and wiring for damage, moisture, loose or corroded connectors; repair any issues found.
  3. With ignition on (battery charged), backprobe the sensor connector. Verify reference/supply voltage, ground continuity and that the sensor signal is within expected range. Compare to OEM values.
  4. Wiggle test the harness while monitoring live data to find intermittent opens/shorts.
  5. Perform resistance/continuity checks from the sensor connector to the SRS control module pins; look for short to chassis ground or battery positive.
  6. If wiring and connectors check good but signal is out of range or missing, replace the sensor or swap with a known-good sensor if available to confirm.
  7. If sensor replacement does not clear the fault, inspect/replace the SRS control module or repair its input circuit per OEM procedures.
  8. After repair, clear DTCs and perform system readiness checks and any required calibration or occupant classification resets per manufacturer instructions.

Likely causes

  • Corroded or contaminated connector at the right side restraints sensor
  • Broken/chafed wire in harness near seat or door hinge
  • Sensor internal failure (water ingress or impact damage)
  • Fault in SRS control module input circuit or reference voltage supply

Fault status

⚠️ Status
B009E — Right Side Restraints Sensor 5 circuit malfunction (open/short/out-of-range/communication fault).
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

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