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 classification ECU reads the condition of each sensor while the power switch is off.

In this mode, if occupant classification 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 classification ECU. When DTC B1796 is output, perform troubleshooting for the DTC.

INSPECTION PROCEDURE

PROCEDURE

1. REPLACE OCCUPANT CLASSIFICATION ECU

(a) Turn the power switch off.

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

(c) Replace the occupant classification ECU Removal.

NEXT -- Continue to next step.

2. PERFORM ZERO POINT CALIBRATION

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

(b) Connect the Techstream to the DLC3.

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

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

OK:

"Zero Point Calibration is complete." is displayed.

NEXT -- Continue to next step.

3. PERFORM SENSITIVITY CHECK

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

Standard:

27 to 33 kg (59.5 to 72.8 lb)

NEXT -- END