SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMMMS Made): B167A,B167E,B167F; Front Door Pressure Sensor LH; 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022

Last Modified: 07-31-2024	6.11:8.1.0	Doc ID: RM100000002779I
Model Year Start: 2023	Model: GR Corolla	Prod Date Range: [09/2022 - 11/2022]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMMMS Made): B167A,B167E,B167F; Front Door Pressure Sensor LH; 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]

DTC

B167A

Front Door Pressure Sensor LH

DTC

B167E

Front Door Pressure Sensor Threshold Malfunction (LH)

DTC

B167F

Front Door Pressure Sensor LH Circuit Range/Performance

DESCRIPTION

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

The side airbag pressure sensor LH and side No. 2 airbag sensor LH detect impacts to the vehicle and send signals to the airbag sensor assembly to determine if the airbags and pretensioners should be deployed.

These DTCs are stored when a malfunction is detected in the side airbag pressure sensor LH.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Warning Indicate	Test Mode / Check Mode
B167A	Front Door Pressure Sensor LH	Side airbag pressure sensor LH malfunction Airbag sensor assembly malfunction	Side airbag pressure sensor LH Airbag sensor assembly	Comes on	Does not apply to test/check mode
B167E	Front Door Pressure Sensor Threshold Malfunction (LH)	Side airbag pressure sensor LH malfunction Airbag sensor assembly malfunction	Side airbag pressure sensor LH Airbag sensor assembly	Comes on	Does not apply to test/check mode
B167F	Front Door Pressure Sensor LH Circuit Range/Performance	Side airbag pressure sensor LH malfunction Airbag sensor assembly malfunction	Side airbag pressure sensor LH Airbag sensor assembly	Comes on	Does not apply to test/check mode

WIRING DIAGRAM

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CAUTION / NOTICE / HINT

NOTICE:

After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
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HINT:

When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

Click here

PROCEDURE

1.	CHECK SIDE AIRBAG PRESSURE SENSOR LH

(a) Turn the ignition switch off.

*1	Side Airbag Pressure Sensor RH
*2	Side No. 2 Airbag Sensor LH

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

CAUTION:

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

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

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

(f) Clear the DTCs stored in memory.

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.

Body Electrical > SRS Airbag > Trouble Codes

HINT:

Codes other than DTCs B166B, B166C, B166F, B167A, B167E and B167F may be output at this time, but they are not related to this check.

Result	Proceed to
DTC B167A, B167E or B167F is output.	A
DTC B166B, B166C or B166F is output.	B
DTCs B166B, B166C, B166F, B167A, B167E and B167F are not output.	C

(j) Turn the ignition switch off.

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

CAUTION:

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

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

REPLACE AIRBAG SENSOR ASSEMBLY

REPLACE SIDE AIRBAG PRESSURE SENSOR LH

USE SIMULATION METHOD TO CHECK