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B0020 Body

Left Side Deployment Control

Left Side Deployment Control: the restraints module has detected a fault in this airbag/pretensioner deployment circuit, which may prevent correct deployment in a crash. Safety-critical.

Affected components

  • Left side airbag module
  • Srs control module
  • Srs wiring
  • Seat harness connector

Common causes

  • High likelihood: Seat harness connector under driver seat damaged
  • Medium likelihood: Side airbag squib circuit open
  • Low likelihood: SRS control module fault

Possible symptoms

  • Warning light or symbol related to the affected system
  • Comfort or safety function impaired

Sources

Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.

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