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Home >> Toyota >> 2019 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different car >> Section 150 (Occupant Classification System - Diagnostic Codes & Symptom Tests (Model Code: ZRE172)) >> Occupant Classification System >> DTC B1790: Center Airbag Sensor Assembly Communication Circuit Malfunction [08/2013 - ] >> Description
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DTC B1790: Center Airbag Sensor Assembly Communication Circuit Malfunction [08/2013 - ]: Description

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The airbag sensor assembly communication circuit consists of the occupant detection ECU and airbag sensor assembly.

DTC B1790 is stored when a malfunction is detected in the airbag sensor assembly communication circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area
B1790 Center Airbag Sensor Assembly Communication Circuit Malfunction
  • The occupant detection ECU detects a line short, short to ground or B+, or an open in the center airbag sensor assembly communication circuit.
  • Occupant detection ECU malfunction
  • Airbag sensor assembly malfunction
  • Floor wire
  • Front seat wire RH
  • Occupant detection ECU
  • Airbag sensor assembly