| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001HIBL |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [02/2019 - ] |
| Title: SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: B1795; Occupant Classification ECU Malfunction; 2019 - 2024 MY RAV4 RAV4 HV [02/2019 - ] | ||
|
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 |
|
|
CAUTION / NOTICE / HINT
NOTICE:
-
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal.
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![2019 - 2024 MY RAV4 RAV4 HV [11/2018 - ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION](/t3Portal/stylegraphics/info.gif)
-
When disconnecting the cable from the negative (-) auxiliary battery terminal while performing repairs, some systems need to be initialized after the cable is reconnected.
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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) Clear the DTCs stored in the occupant detection ECU.
Click here
Body Electrical > Occupant Detection > Clear DTCs
(b) Clear the DTCs stored in the airbag ECU assembly.
Click here
Body Electrical > SRS Airbag > Clear DTCs
(c) Turn the ignition switch off.
(d) Turn the ignition switch to ON, and wait for at least 60 seconds.
(e) Check the DTCs stored in the occupant detection ECU.
Click here
Body Electrical > Occupant Detection > Trouble Codes
HINT:
Codes other than DTC B1795 may be output at this time, but they are not related to this check.
| DTC B1795 is not output. |
|
|
|
2. |
REPLACE OCCUPANT DETECTION ECU |
(a) Turn the ignition switch off.
(b) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 90 seconds.
(c) Replace the occupant detection ECU with a new one.
Click here
(d) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
|
|
3. |
PERFORM ZERO POINT CALIBRATION |
(a) Using the Techstream, perform "Zero Point Calibration".
Click here
Body Electrical > Occupant Detection > Utility
|
Tester Display |
|---|
|
Zero Point Calibration |
|
|
4. |
CHECK DTC |
(a) Clear the DTCs stored in the occupant detection ECU.
Click here
Body Electrical > Occupant Detection > Clear DTCs
(b) Clear the DTCs stored in the airbag ECU assembly.
Click here
Body Electrical > SRS Airbag > Clear DTCs
(c) Turn the ignition switch off.
(d) Turn the ignition switch to ON, and wait for at least 60 seconds.
(e) Check the DTCs stored in the occupant detection ECU.
Click here
Body Electrical > Occupant Detection > Trouble Codes
HINT:
Codes other than DTC B1795 may be output at this time, but they are not related to this check.
| DTC B1795 is not output. |
|
END (OCCUPANT DETECTION ECU WAS DEFECTIVE) |
|
|
5. |
REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH |
(a) Turn the ignition switch off.
(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
(c) Replace the front seat adjuster assembly RH with a new one.
Click here
(d) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
|
|
6. |
PERFORM ZERO POINT CALIBRATION |
(a) Using the Techstream, perform "Zero Point Calibration".
Click here
Body Electrical > Occupant Detection > Utility
|
Tester Display |
|---|
|
Zero Point Calibration |
| NEXT |
|
END (FRONT SEAT ADJUSTER ASSEMBLY RH WAS DEFECTIVE) |
|
|