Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001G4PN
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 09/2022]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for HV Model): B163A; Side Airbag Sensor Assembly No.2 (LH); 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]

DTC

B163A

Side Airbag Sensor Assembly No.2 (LH)

DESCRIPTION

The side collision sensor LH circuit (bus 2) consists of the airbag sensor assembly and side No. 1 airbag sensor LH.

The side No. 1 airbag sensor LH detects impacts to the vehicle and sends signals to the airbag sensor assembly to determine if the airbags and pretensioners should be deployed.

DTC B163A is stored when a malfunction is detected in the side No. 1 airbag sensor LH.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Test Mode / Check Mode

B163A

Side Airbag Sensor Assembly No.2 (LH)

  • Side No. 1 airbag sensor LH malfunction
  • Airbag sensor assembly malfunction
  • Side No. 1 airbag sensor LH
  • Airbag sensor assembly

Comes on

Does not apply to test/check mode

WIRING DIAGRAM

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for HV Model): B163B,B163C; Side Airbag Sensor Assembly No.2 Lost Communication (LH)+

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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PROCEDURE

1.

CHECK SIDE NO. 1 AIRBAG SENSOR LH

(a) Turn the power switch off.

*1

Side No. 1 Airbag Sensor RH

*2

Airbag Sensor Assembly

(b) Disconnect the cable from the negative (-) auxiliary battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

(c) Interchange the side No. 1 airbag sensor LH with RH and connect the connectors.

(d) Connect the cable to the negative (-) auxiliary battery terminal.

(e) Turn the power switch on (IG), and wait for at least 60 seconds.

(f) Clear the DTCs stored in memory.

Body Electrical > SRS Airbag > Clear DTCs

(g) Turn the power switch off.

(h) Turn the power switch on (IG), and wait for at least 60 seconds.

(i) Check for DTCs.

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.

Result

Proceed to

DTC B163A is output.

A

DTC B162A is output.

B

DTCs B162A and B163A are not output.

C

(j) Turn the power switch off.

(k) Disconnect the cable from the negative (-) auxiliary battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

(l) Return the side No. 1 airbag sensor LH and RH to their original positions and connect the connectors.

A

REPLACE AIRBAG SENSOR ASSEMBLY 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 03/2019]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: REMOVAL 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: REMOVAL

B

REPLACE SIDE NO. 1 AIRBAG SENSOR LH 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 03/2019]; SUPPLEMENTAL RESTRAINT SYSTEMS: SIDE AIRBAG SENSOR (for Center Pillar): REMOVAL 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: SIDE AIRBAG SENSOR (for Center Pillar): REMOVAL

C

USE SIMULATION METHOD TO CHECK