LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2012 >> Prius Three >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 128 (Occupant Classification System (Plug-In) (Diagnostic Codes & Symptom Tests)) >> Occupant Classification System >> DTC B1796: Sleep Operation Failure of Occupant Classification ECU >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC B1796: Sleep Operation Failure of Occupant Classification ECU: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. REPLACE OCCUPANT DETECTION ECU 
    1. Turn the power switch off.
    2. Disconnect the cable from the negative (-) auxiliary battery terminal.
    3. Replace the occupant detection ECU. Refer to REMOVAL .
    4. Connect the cable to the negative (-) auxiliary battery terminal.

    NEXT: Go to next step 

  2. PERFORM ZERO POINT CALIBRATION 
    1. Using the Techstream, perform Zero Point Calibration. Refer to INITIALIZATION .

    NEXT: Go to next step 

  3. PERFORM SENSITIVITY CHECK 
    1. Using the Techstream, perform Sensitivity Check. Refer to INITIALIZATION .

    NEXT → END