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Home >> Toyota >> 2009 >> Matrix Base, Standard >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System >> Occupant Classification System >> DTC B1797: Calibration Malfunction >> Description

DTC B1797: Calibration Malfunction: Description

DTC B1797 is output when the following conditions are met:

Condition for zero point calibration 

ITEM CONDITION CHART

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 DETECTION CONDITION CHART

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.