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DTC B1783 Rear Occupant Classification Sensor RH Circuit Malfunction: Description

WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

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

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

DTC DETECTION CONDITION

DTC No. DTC Detection Condition Trouble Area
B1783  When one of following conditions is met:
  • Occupant classification ECU detects line short signal, open signal, short to ground signal or short to B+ signal in the rear occupant classification sensor RH circuit for 2 seconds
  • Rear occupant classification sensor RH malfunction
  • Occupant classification ECU malfunction
  • Front seat wire RH
  • Front seat RH (Rear occupant classification sensor RH)
  • Occupant classification ECU