DTC B1795: Occupant Classification ECU Malfunction [02/2019 - ]: Procedure
- CHECK DTC
- Clear the DTCs stored in the occupant detection ECU.
Refer to DTC CHECK / CLEAR [11/2018 - ]
Body Electrical > Occupant Detection > Clear DTCs
- Clear the DTCs stored in the airbag ECU assembly.
Refer to DTC CHECK / CLEAR [11/2018 - ]
Body Electrical > SRS Airbag > Clear DTCs
- Turn the ignition switch off.
- Turn the ignition switch to ON, and wait for at least 60 seconds.
- Check the DTCs stored in the occupant detection ECU.
Refer to DTC CHECK / CLEAR [11/2018 - ]
Body Electrical > Occupant Detection > Trouble Codes
Result
Proceed to DTC B1795 is output. DTC B1795 is not output. HINT:
Codes other than DTC B1795 may be output at this time, but they are not related to this check.
Result:
DTC B1795 is not output.
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]
Result:
DTC B1795 is output.
See step 2
- Clear the DTCs stored in the occupant detection ECU.
- REPLACE OCCUPANT DETECTION ECU
- Turn the ignition switch off.
- Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 90 seconds.
- Replace the occupant detection ECU with a new one.
Refer to REMOVAL [02/2019 - 10/2019] , or refer to REMOVAL [10/2019 - 08/2020] , or refer to REMOVAL [08/2020 - 12/2021] , or refer to REMOVAL [12/2021 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]
- Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
Result
Proceed to NEXT
Result:
NEXT
See step 3
- PERFORM ZERO POINT CALIBRATION
- Using the Techstream, perform "Zero Point Calibration".
Refer to INITIALIZATION [11/2018 - ]
Body Electrical > Occupant Detection > Utility
Tester Display Zero Point Calibration Result
Proceed to NEXT
Result:
NEXT
See step 4
- Using the Techstream, perform "Zero Point Calibration".
- CHECK DTC
- Clear the DTCs stored in the occupant detection ECU.
Refer to DTC CHECK / CLEAR [11/2018 - ]
Body Electrical > Occupant Detection > Clear DTCs
- Clear the DTCs stored in the airbag ECU assembly.
Refer to DTC CHECK / CLEAR [11/2018 - ]
Body Electrical > SRS Airbag > Clear DTCs
- Turn the ignition switch off.
- Turn the ignition switch to ON, and wait for at least 60 seconds.
- Check the DTCs stored in the occupant detection ECU.
Refer to DTC CHECK / CLEAR [11/2018 - ]
Body Electrical > Occupant Detection > Trouble Codes
Result
Proceed to DTC B1795 is output. DTC B1795 is not output. HINT:
Codes other than DTC B1795 may be output at this time, but they are not related to this check.
Result:
DTC B1795 is not output.
END (OCCUPANT DETECTION ECU WAS DEFECTIVE)
Result:
DTC B1795 is output.
See step 5
- Clear the DTCs stored in the occupant detection ECU.
- REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH
- Turn the ignition switch off.
- Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
- Replace the front seat adjuster assembly RH with a new one.
Refer to DISASSEMBLY [11/2018 - 08/2020] , or refer to DISASSEMBLY [08/2020 - ]
- Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
Result
Proceed to NEXT
Result:
NEXT
See step 6
- PERFORM ZERO POINT CALIBRATION
- Using the Techstream, perform "Zero Point Calibration".
Refer to INITIALIZATION [11/2018 - ]
Body Electrical > Occupant Detection > Utility
Tester Display Zero Point Calibration Result
Proceed to NEXT
Result:
NEXT
END (FRONT SEAT ADJUSTER ASSEMBLY RH WAS DEFECTIVE)
- Using the Techstream, perform "Zero Point Calibration".