DTC B1797: Calibration Malfunction: Description

WARNING: This page is about a different car, the 2011 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

DTC B1797 is output when the following conditions are met:

Zero point calibration is performed when the conditions for the calibration are not satisfied.

Zero point calibration has failed.

CONDITION FOR THE 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 114.8°F)
Filtered pressure	38 to 75 count

DTC No.	DTC Detecting 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.