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Home >> Toyota >> 2013 >> Matrix Base, Automatic Trans >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> Occupant Classification System (Diagnostic Codes & Symptom Tests) >> Occupant Classification System >> DTC B1797: Calibration Malfunction >> Description
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DTC B1797: Calibration Malfunction: Description

DTC B1797 is output when the following conditions are met:

CONDITION FOR ZERO POINT CALIBRATION

Item Condition
DTC Not recorded
Front passenger seat occupant Vacant
Front passenger side buckle switch OFF (The seat belt is not fastened)
ECU temperature 0 to 46°C (32 to 115°F)
Filtered pressure 38 to 75 count
DTC No. DTC Detection Condition Trouble Area
B1797
  • Zero point calibration is performed when the conditions for the calibration are not satisfied.
  • Zero point calibration has failed.
  • There is no malfunction if this DTC is not output again after performing occupant classification system zero point calibration.
  • Occupant classification sensor
  • Occupant classification ECU

HINT: 

When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant classification ECU. When DTC B1797 is output, perform troubleshooting for the DTC.