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Home >> Toyota >> 2014 >> Prius Five >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 138 (Occupant Classification System (Diagnostic Codes & Symptom Tests) (Plug-In)) >> Occupant Classification System >> DTC B1783: Rear Occupant Classification Sensor RH Circuit Malfunction [10/2013 - ] >> Description
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DTC B1783: Rear Occupant Classification Sensor RH Circuit Malfunction [10/2013 - ]: Description

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The rear occupant classification sensor RH circuit consists of the occupant detection ECU and rear occupant classification sensor RH.

DTC B1783 is stored when a malfunction is detected in the rear occupant classification sensor RH circuit.

DTC No. DTC Detecting Condition Trouble Area
B1783
  • The occupant detection ECU receives a line short circuit signal, an open circuit signal, a short circuit to ground signal or a short circuit to B+ signal in the rear occupant classification sensor RH circuit.
  • Rear occupant classification sensor RH malfunction
  • Occupant detection ECU malfunction
  • Front seat wire RH
  • Separate type front seat cushion spring assembly (Rear occupant classification sensor RH)
  • Occupant detection ECU

HINT: 

When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant detection ECU. When DTC B1783 is output, perform troubleshooting for the DTC.