B1796

SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: B1796: Sleep Operation Failure of Occupant Classification ECU
B1796 - Sleep Operation Failure of Occupant Classification ECU

DESCRIPTION

In sleep mode, the occupant detection ECU reads the condition of each sensor while the power switch is off.

In this mode, if the occupant detection ECU detects an internal malfunction, DTC B1796 is stored.





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 B1796 is output, perform troubleshooting for the DTC.

INSPECTION PROCEDURE

NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work Service Precautions.

PROCEDURE

1. REPLACE OCCUPANT DETECTION ECU

(a) Turn the power switch off.

(b) Disconnect the cable from the negative (-) auxiliary battery terminal.

(c) Replace the occupant detection ECU Removal.

NEXT -- Continue to next step.

2. PERFORM ZERO POINT CALIBRATION

(a) Connect the cable to the negative (-) auxiliary battery terminal.

(b) Turn the power switch on (IG).

(c) Using the Techstream, perform Zero Point Calibration Programming and Relearning.

NEXT -- Continue to next step.

3. PERFORM SENSITIVITY CHECK

(a) Using the Techstream, perform Sensitivity Check Programming and Relearning.

NEXT -- END