AutoFixDB - Free OBD-II diagnostic trouble code lookup. Find causes, symptoms, diagnostic steps and repair solutions.

Overview

OBD‑II Body Code B009D indicates a subfault in the right side restraints sensor 4 within the airbag/safety restraint system. Common causes include wiring issues, sensor failure, or control module faults, often triggering airbag warning indicators.

Common Symptoms

Airbag warning light illuminated
Safety restraint system fault message or indicator
Possible failure of right side crash sensor functionality

Most Common Causes

Damaged or corroded wiring/connectors in crash sensor circuit medium

Faulty harness or poor connection can cause low voltage or open/short conditions triggering this code

Faulty right side restraints/crash impact sensor medium

Internal sensor failure may trigger subfault message requiring sensor replacement

Airbag control module malfunction low

Less common, but a failing control module may erroneously report sensor faults

Diagnostic Steps

Scan airbag/SRS system with OEM or advanced scan tool to confirm B009D and check related codes

Expected: B009D present with airbag warning light

Interpretation: Confirm that the code is current and not historic; collect freeze frame data if available
Visually inspect wiring harness and connectors for right side restraints sensor 4 for damage, corrosion, looseness

Expected: Verify intact, clean connections; no broken wires or corroded pins

Interpretation: Any damage suggests repair or connector cleaning before further testing
Use multimeter to test circuit voltage and continuity between sensor and airbag control module

Expected: Manufacturer‑specified voltage and continuity values

Interpretation: Out‑of‑range readings indicate wiring or sensor failure
If wiring tests normal, replace right side restraints/crash sensor 4 and clear codes

Expected: Code should not reappear if sensor was at fault

Interpretation: Persistent code suggests further evaluation of control module

Repair Solutions

Repair or replace damaged wiring/connectors in sensor circuit medium

Estimated Cost: $50 - $300

Cost varies based on labor and parts; simpler if access is easy

Replace right side restraints/crash sensor 4 medium

Estimated Cost: $200 - $500

OEM sensor typically needed; calibration may be required

Diagnose and repair/replace airbag control module if faulty hard

Estimated Cost: $400 - $800

Module replacement often requires programming which adds to cost

Common Misdiagnoses

Avoid these common diagnostic mistakes:

Assuming general powertrain sensor fault without confirming SRS system wiring and component specifics

Frequently Asked Questions

Technical definition of B009D OBD-II Code

The B009D code stands for Right Side Restraints Sensor 4 (Subfault). This generally indicates an issue with the Sensors system.

Should I stop driving if I have B009D?

The B009D code is considered high severity. May not directly affect engine drivability but indicates potential airbag/safety restraint system failure impacting crash protection

What are the symptoms of B009D?

Common symptoms include: Airbag warning light illuminated, Safety restraint system fault message or indicator, Possible failure of right side crash sensor functionality. You might also notice the Check Engine Light is on.

Potential causes for OBDII code B009D

It can be caused by several factors, most notably: Damaged or corroded wiring/connectors in crash sensor circuit, Faulty right side restraints/crash impact sensor, Airbag control module malfunction.

Is B009D expensive to fix?

The cost varies significantly based on the root cause. For example, replacing a Repair or replace damaged wiring/connectors in sensor circuit typically costs between $50 and $300, while fixing a Diagnose and repair/replace airbag control module if faulty can range from $400 to $800.

Does B009D affect Ford, Toyota, or Honda?

This is a universal code. You might see B009D on Ford, Chevrolet, Toyota, Honda, Nissan, or any other OBD-II vehicle.

B009D: Right Side Restraints Sensor 4 (Subfault)