| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001G4RK |
| Model Year Start: 2020 | Model: Corolla | Prod Date Range: [01/2019 - 09/2022] |
| Title: SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM (for HV Model): B1795; Occupant Classification ECU Malfunction; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022] | ||
|
DTC |
B1795 |
Occupant Classification ECU Malfunction |
DESCRIPTION
DTC B1795 is stored when a malfunction is detected in the occupant detection ECU.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
B1795 |
Occupant Classification ECU Malfunction |
Occupant detection ECU malfunction |
Occupant detection ECU |
CAUTION / NOTICE / HINT
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.
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![2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 03/2019]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION](/t3Portal/stylegraphics/info.gif)
HINT:
When DTC B1650 is stored as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant detection ECU. When DTC B1795 is output, perform troubleshooting for this DTC first.
PROCEDURE
|
1. |
CHECK DTC |
(a) Turn the power switch on (IG), and wait for at least 60 seconds.
(b) Clear the DTCs stored in the occupant detection ECU.
Body Electrical > Occupant Detection > Clear DTCs
(c) Clear the DTCs stored in the airbag sensor assembly.
Body Electrical > SRS Airbag > Clear DTCs
(d) Turn the power switch off.
(e) Turn the power switch on (IG), and wait for at least 10 seconds.
(f) Check for DTCs.
Body Electrical > Occupant Detection > Trouble Codes
OK:
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.
(g) Turn the power switch off.
| OK |
|
|
|
2. |
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 with a new one.
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(d) Connect the cable to the negative (-) auxiliary battery terminal.
|
|
3. |
PERFORM ZERO POINT CALIBRATION |
(a) Using the Techstream, perform Zero Point Calibration.
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| NEXT |
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END |
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