Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001QM57
Model Year Start: 2021 Model: RAV4 Prod Date Range: [08/2020 -           ]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B163A; Side Airbag Sensor Assembly No.2 (LH); 2021 - 2024 MY RAV4 RAV4 HV [08/2020 -        ]

DTC

B163A

Side Airbag Sensor Assembly No.2 (LH)

DESCRIPTION

The side collision sensor LH circuit consists of the airbag ECU assembly and floor side airbag sensor LH.

The floor side airbag sensor LH detects impacts to the vehicle and send signals to the airbag ECU assembly to determine if the SRS should be deployed.

DTC B163A is stored when a malfunction is detected in the floor side airbag sensor LH or airbag ECU assembly.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Test Mode / Check Mode

B163A

Side Airbag Sensor Assembly No.2 (LH)

Either condition is met:

  • A floor side airbag sensor LH malfunction.
  • An airbag ECU assembly malfunction.
  • Floor side airbag sensor LH
  • Airbag ECU assembly

Comes on

Not applicable

WIRING DIAGRAM

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.

    Click here 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2024 MY RAV4 RAV4 HV [10/2023 -        ]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

  • When disconnecting the cable from the negative (-) auxiliary battery terminal while performing repairs, some systems need to be initialized after the cable is reconnected.

    Click here 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2024 MY RAV4 RAV4 HV [10/2023 -        ]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

  • After replacing the airbag ECU assembly, refer to initialization.

    Click here 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2024 MY RAV4 RAV4 HV [10/2023 -        ]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

PROCEDURE

1.

CHECK FLOOR SIDE AIRBAG SENSOR LH

(a) Turn the ignition switch off.

*1

Floor Side Airbag Sensor RH

*2

Airbag ECU Assembly

(b) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 90 seconds.

(c) Interchange the floor side airbag sensor LH with RH and connect the connectors to them.

(d) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.

(e) Turn the ignition switch to ON, and wait for at least 60 seconds.

(f) Clear the DTCs stored in memory.

Click here 2021 - 2024 MY RAV4 RAV4 HV [08/2020 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: DTC CHECK / CLEAR

Body Electrical > SRS Airbag > Clear DTCs

(g) Turn the ignition switch off.

(h) Turn the ignition switch to ON, and wait for at least 60 seconds.

(i) Check for DTCs.

Click here 2021 - 2024 MY RAV4 RAV4 HV [08/2020 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: DTC CHECK / CLEAR

Body Electrical > SRS Airbag > Trouble Codes

HINT:

Codes other than DTCs B162A and B163A may be output at this time, but they are not related to this check.

(j) Turn the ignition switch off.

(k) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 90 seconds.

(l) Return the floor side airbag sensor RH and LH to their original positions and connect the connectors to them.

DTC B163A is output

REPLACE AIRBAG ECU ASSEMBLY 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: REMOVAL 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: REMOVAL

DTC B162A is output

REPLACE FLOOR SIDE AIRBAG SENSOR LH 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; SUPPLEMENTAL RESTRAINT SYSTEMS: SIDE AIRBAG SENSOR (for Center Pillar): REMOVAL 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: SIDE AIRBAG SENSOR (for Center Pillar): REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; SUPPLEMENTAL RESTRAINT SYSTEMS: SIDE AIRBAG SENSOR (for Center Pillar): REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: SIDE AIRBAG SENSOR (for Center Pillar): REMOVAL

DTCs B162A and B163A are not output

USE SIMULATION METHOD TO CHECK