B0032 critical

SRS Side Impact Sensor Circuit -- Left

The B0032 code means the vehicle's onboard diagnostic system has detected: SRS Side Impact Sensor Circuit -- Left. This is a critical severity code.

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Keep driving?
No -- stop driving
DIY difficulty
hard
Estimated cost
$150 - $600 (parts and labor)
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Common Symptoms

  • Airbag warning light on
  • Side impact sensor malfunction detected
  • SRS fault code stored
  • Warning chime at ignition
  • Failed safety inspection

Probable Causes (Ranked by Likelihood)

  • Defective left side impact sensor Very High
  • Damaged wiring to side impact sensor in door or B-pillar High
  • Corroded connector at side impact sensor Moderate
  • Prior side collision with unreplaced sensor Moderate
  • Door repair or replacement that affected sensor wiring Low

Step-by-Step Diagnostic Procedure

  1. Scan SRS system for DTCs

  2. Inspect left side impact sensor in door or B-pillar

  3. Check wiring from sensor to SRS module

  4. Measure sensor circuit resistance and voltage

  5. Verify sensor mounting is secure and properly positioned

Frequently Asked Questions

Where is the left side impact sensor?

The left side impact sensor is typically located in the driver door panel or the B-pillar (the pillar between the front and rear doors) on the left side of the vehicle.

Can door panel removal affect this sensor?

Yes. Removing the door panel for window regulator or speaker repairs can disturb the side impact sensor wiring or connector.

Is this related to the side curtain airbag?

The side impact sensor provides input to the SRS module that controls both the side torso airbag and the side curtain airbag deployment on the affected side.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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