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OBD code information sheet

https://dvireports.com/b0011

Fault codes OBDAuto
B0011

Passenger Frontal Stage 2 Deployment Control

Safe to keep driving?Caution / Repair soonArrange diagnosis soon

Arrange diagnosis soon. A limited journey may be reasonable only if the vehicle runs normally without red warnings, abnormal temperature or severe loss of power. Stop safely if serious symptoms develop.

LowCautionCritical
System groupBody & comfort

Technical explanation

Passenger Frontal Stage 2 Deployment Control. Basic catalogue definition; diagnostic details have not yet been reviewed.

Symptoms

  • Airbag or supplemental restraint warning light

  • Passenger-airbag status may be incorrect

  • One or more restraint functions may be disabled

  • The vehicle may otherwise drive normally

Possible causes

Possible causes to investigate, not a statistical ranking or a parts-replacement list.

  1. Loose or high-resistance restraint-system connector

  2. Damaged wiring, clock spring, seat harness, or deployment-loop connector

  3. Faulty airbag, pretensioner, occupant sensor, or restraint control module

  4. Stored crash event or configuration problem

Step-by-step diagnosis

Checks

Work through the steps before replacing parts. Adapt the checks to the manufacturer’s procedure.

  1. Record every restraint code and failure-type byte before disconnecting power

  2. Follow the manufacturer depowering and waiting procedure

  3. Inspect the named loop, connector, seat harness, and clock spring without probing an inflator

  4. Use approved simulators or diagnostic tools only where service information permits

  5. Restore power, clear the code, and verify the restraint warning lamp self-test

  6. Read the complete restraint-module code including its failure-type byte

  7. Inspect connectors and harness routing using the manufacturer safety procedure

  8. Test only with approved restraint-system tools and specifications

  9. Repair the verified circuit or component and complete the required setup procedure

Check the fuses before ordering a part

An OBD code describes a detected condition; it does not tell you which part to replace. Start with the fuse for the affected circuit.

Find the fuse for your vehicleChoose the make and model, then look up the fuse position in the catalogue.

If the fuse is good, carry on like this:

  1. Check the relevant supplies and connectionsWhere the diagnostic procedure calls for electrical checks, verify supply, ground and connectors under the manufacturer’s activation conditions.
  2. Run the specified component testUse the manufacturer’s test for this code and component before deciding it has failed.
  3. Order only after the fault is demonstratedReplace a part only when the prescribed tests identify it as defective.
Check details
  • Identify the circuit and any relevant fuse: Confirm the vehicle, engine, code meaning and stored operating conditions first. A fuse link is a location aid, not evidence that the fuse caused this code. Use the specified type and rating; do not repeatedly replace a fuse that opens.
  • Check the relevant supplies and connections: Use the specified engine state, circuit conditions and expected values. Have live measurements performed by someone qualified. For non-electrical faults, follow the relevant mechanical, fluid, pressure or leak checks instead.
  • Run the specified component test: Do not apply a generic resistance range. Any resistance or continuity test requires a de-energized circuit and an isolated component, with the correct pins and temperature from the procedure. Some components need a different kind of test.
  • Order only after the fault is demonstrated: If results are normal, continue the relevant wiring, control, mechanical or intermittent diagnosis. Check for related faults and verify the repair under the required conditions. A code or a completed checklist alone does not justify replacement.
Fluke · Continuity testing

If the procedure involves airbag/SRS, pretensioners or a high-voltage system, stop DIY testing and use qualified service. Do not probe these circuits with a multimeter.

Vehicle experiences and cases

User-reported cases published after moderation. Approval does not verify the diagnosis; the same code can have different causes.

No experiences have been published for this definition yet. You can be the first to share the checks and outcome.

See all vehicle experiences

Manuals, components and vehicle guides

Find the relevant procedure in the workshop manual for your vehicle. A fault code alone does not identify a failed part, powertrain or exact schematic.

Find workshop manual / diagramRelated issues and checks

Manuals open at their original source. Exact diagram availability depends on the build year, engine and manufacturer access.

Airbags and pretensioners

General system guidance · not a confirmed diagnosis

Confirm the exact SRS definition and subtype using compatible equipment. A single code cannot establish occupant protection.

The association is based on the imported description. This information explains the system; it does not confirm a procedure for the exact code, model or engine. Verify applicability in manufacturer documentation.

Checks for this type of system

  1. Save the warning and request a specialist SRS scan.
  2. Provide accident and seat/steering-wheel repair history.

Useful diagnostic data, where available

  • Controller identity and the complete reported fault.
  • Diagnostic states read without triggering devices.

Normal values and thresholds vary by vehicle and are not assumed here.

Mistakes to avoid

  • Do not resistance-test pyrotechnic initiators.
  • Never fit resistors to conceal a restraint warning.
System-guide sources

References support general principles, not individual verification of every associated code.

Continue your research

Links to related systems, warning lights and vehicle examples.

Read the code with an OBD scanner

Similar codes

B0001Caution / Repair soon

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Driver frontal airbag — stage 1 deployment control

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B0002Caution / Repair soon

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Driver frontal airbag — stage 2 deployment control

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B0003Caution / Repair soon

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Driver frontal airbag — stage 3 deployment control

Body & comfort · Supplemental restraint system (SRS)

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