Airbags

B00D3 — Restraint System Indicator 2 Circuit Fault

Severity: medium Safe to drive

What B00D3 means

B00D3 means the restraint (airbag) control module detected a problem in the restraint system warning indicator circuit or one of its subfaults. The module normally checks the lamp and its circuit every time the ignition is turned on. The exact meaning varies by manufacturer, so the code should be confirmed with a scan tool that can read SRS data.

Symptoms

  • Airbag/SRS warning light is on or flashing
  • Warning light does not come on briefly at ignition on
  • Other stored codes for the indicator circuit
  • Occasional loss of communication with the restraint module

Possible causes

  1. Failed indicator lamp or LED in the instrument cluster
  2. Open, short or corroded wiring in the indicator circuit
  3. Poor connection at the SRS module or cluster connector
  4. Faulty restraint control module
  5. Wiring damaged or altered after a collision or earlier repair

How to diagnose

  1. Scan all modules, including SRS, and record freeze frame data
  2. Turn the ignition on and watch whether the SRS light comes on and then goes out
  3. Inspect connectors under the seats, at the SRS module and at the cluster for corrosion or loose locks
  4. Test the indicator circuit wiring for opens and shorts to ground using the factory diagram
  5. Check battery voltage and the SRS module ground
  6. Test the instrument cluster and indicator lamp
  7. Clear the code and confirm it does not return

Common fixes

  • Repair damaged wiring or replace the connector in the indicator circuit
  • Clean and secure loose or corroded connectors
  • Replace the instrument cluster or indicator lamp
  • Replace or reprogram the SRS module if it is confirmed faulty

Questions and answers

What does B00D3 mean?

The SRS module found a fault in the restraint system indicator 2 circuit. Wiring, a connector or the lamp itself is the most common cause.

Can I drive with B00D3?

You can, but the airbags may not work correctly in a crash because the warning light may not reflect the real state of the system. Have it diagnosed soon.

Can I test the SRS circuit myself?

Reading the code and inspecting connectors is fine. Do not unplug airbag connectors or probe their circuits without disconnecting the battery and waiting as the manual specifies, because of the risk of accidental deployment.

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.