Airbags

B0005 — Collapsible Steering Column Deployment Control Circuit Fault

Severity: high Drive with care, to a shop

What B0005 means

The airbag (SRS) control module continuously tests the circuits of the devices that fire in a crash, including the collapsible steering column deployment control circuit. B0005 means it found a problem in that circuit, such as an open, a short, out-of-range resistance, or lost communication. The exact meaning of the subfault varies by manufacturer, so confirm it in the service information for your vehicle.

Symptoms

  • Airbag/SRS warning light on or flashing
  • Light may go out and return after ignition cycles
  • Airbags or pretensioners may not be ready to deploy
  • Other SRS codes stored along with B0005

Possible causes

  1. Poor contact or corrosion in the steering column circuit connector
  2. Open or shorted wiring in the deployment circuit
  3. Damaged clockspring in the steering wheel
  4. Faulty column deployment device or sensor
  5. Faulty SRS control module
  6. Loose or incorrectly connected plugs after recent column or interior work

How to diagnose

  1. Read all SRS codes with a scan tool that supports the system and record freeze frame data and the subfault
  2. Disconnect the battery and wait the time the manufacturer specifies before working, to prevent accidental deployment
  3. Inspect connectors under the column and at the SRS module for moisture, corrosion, bent pins, and unlatched locks
  4. Check the harness for chafing, especially at flex points and column mounts
  5. Test the clockspring following the manufacturer's procedure
  6. Check circuit resistance and supply voltage against service data; never probe airbag circuits with an ordinary test light or meter
  7. Clear the code and see if it returns; if it does, evaluate the SRS module

Common fixes

  • Clean, reseat, or replace corroded or damaged connectors
  • Repair or replace the damaged section of wiring
  • Replace the clockspring if it has failed
  • Replace the faulty column deployment device or sensor
  • Replace or reprogram the SRS control module

Questions and answers

What does code B0005 mean?

The SRS module detected a fault in the collapsible steering column deployment control circuit. It is part of the passive safety system, so it should not be ignored.

Is it safe to drive with the SRS light on?

The car will run, but airbags and related devices may not work in a crash. Limit driving and get it diagnosed soon.

Can I just clear the B0005 code?

You can clear it, but it will come back if the cause remains. Find and fix the fault first, and work on SRS circuits only with the battery disconnected.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.