Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000289UZ
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [11/2022 -           ]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B009B87; Left Side Restraints Sensor 5 Missing Message; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]

DTC

B009B87

Left Side Restraints Sensor 5 Missing Message

DESCRIPTION

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

DTC Output from

Priority

Test Mode / Check Mode

B009B87

Left Side Restraints Sensor 5 Missing Message
  • The airbag sensor assembly detects a line short circuit signal, open circuit signal, short circuit to ground signal or short circuit to +B signal in the side collision sensor LH circuit (bus 1) for 2 seconds.
  • Side airbag pressure sensor LH malfunction
  • Airbag sensor assembly malfunction
  • Harness or connector
  • Side airbag pressure sensor LH
  • Airbag sensor assembly

Comes on

SRS Airbag

A

Does not apply to test/check mode

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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

    Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; SETUP: WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL: BEFORE DISCONNECTING BATTERY

    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 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; SETUP: WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL: AUTOMATIC LEARNING CHART

  • After replacing the airbag sensor assembly, refer to work procedure.

    Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 - 03/2023]; SETUP: WHEN REPLACING OR REMOVING/INSTALLING PARTS: WORK PROCEDURE 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2023 - 08/2023]; SETUP: WHEN REPLACING OR REMOVING/INSTALLING PARTS: WORK PROCEDURE 2024 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [08/2023 -        ]; SETUP: WHEN REPLACING OR REMOVING/INSTALLING PARTS: WORK PROCEDURE

PROCEDURE

1.

CHECK CONNECTION OF CONNECTORS

Pre-procedure1

(a) Turn the ignition switch off.

(b) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.

Procedure1

(c) Check that the connectors are properly connected to the airbag sensor assembly and side airbag pressure sensor LH.

OK:

The connectors are properly connected.

Post-procedure1

(d) None

NG

CONNECT CONNECTORS PROPERLY
OK

2.

CHECK CONNECTORS

Pre-procedure1

(a) Disconnect the airbag sensor assembly connector.

*1

Side Airbag Pressure Sensor LH

*2

Airbag Sensor Assembly

*3

Wire Harness

(b) Disconnect the side airbag pressure sensor LH connector.

Procedure1

(c) Check that the terminals of the connectors are not deformed or damaged.

OK:

The terminals are not deformed or damaged.

Post-procedure1

(d) None

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

3.

CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT IN THE CIRCUIT)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

L6-2 (BDL+) - L6-1 (BDL-)

Always

1 MΩ or higher

*1

Side Airbag Pressure Sensor LH

*2

Airbag Sensor Assembly

*3

Wire Harness

*a

Front view of wire harness connector

(to Side Airbag Pressure Sensor LH)
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

4.

CHECK HARNESS AND CONNECTOR (CHECK FOR OPEN IN THE CIRCUIT)

Pre-procedure1

(a) Using a service wire, connect terminals 32 (BBL+) and 31 (BBL-) of connector B.

NOTICE:

Do not forcibly insert the service wire into the terminals of the connector when connecting a service wire.

*1

Side Airbag Pressure Sensor LH

*2

Airbag Sensor Assembly

*3

Wire Harness

*4

Service Wire

*a

Front view of wire harness connector

(to Side Airbag Pressure Sensor LH)

*b

Front view of wire harness connector

(to Airbag Sensor Assembly)

Procedure1

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

L6-2 (BDL+) - L6-1 (BDL-)

Always

Below 1 Ω

Post-procedure1

(c) Disconnect the service wire from connector B.

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

5.

CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT TO GROUND IN THE CIRCUIT)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

L6-2 (BDL+) - Body ground

Always

1 MΩ or higher

L6-1 (BDL-) - Body ground

Always

1 MΩ or higher

*1

Side Airbag Pressure Sensor LH

*2

Airbag Sensor Assembly

*3

Wire Harness

*a

Front view of wire harness connector

(to Side Airbag Pressure Sensor LH)
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

6.

CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT TO +B IN THE CIRCUIT)

Pre-procedure1

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

(b) Turn the ignition switch to ON.

Procedure1

(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

L6-2 (BDL+) - Body ground

Ignition switch ON

Below 1 V

L6-1 (BDL-) - Body ground

Ignition switch ON

Below 1 V

Result:

Proceed to

OK

NG

*1

Side Airbag Pressure Sensor LH

*2

Airbag Sensor Assembly

*3

Wire Harness

*a

Front view of wire harness connector

(to Side Airbag Pressure Sensor LH)

Post-procedure1

(d) Turn the ignition switch off.

(e) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

7.

CLEAR DTC

Pre-procedure1

(a) Connect the airbag sensor assembly connector.

*1

Side Airbag Pressure Sensor RH

*2

Airbag Sensor Assembly

*3

Wire Harness

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

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

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

Procedure1

(e) Clear the DTCs stored in memory.

Body Electrical > SRS Airbag > Clear DTCs

Post-procedure1

(f) Turn the ignition switch off.

NEXT

8.

CHECK SIDE AIRBAG PRESSURE SENSOR LH

Pre-procedure1

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

Procedure1

(b) Check for DTCs.

Body Electrical > SRS Airbag > Trouble Codes

Result

Proceed to

B009B87 is output

A

B009E87 is output

B

B009B87 and B009E87 are not output

C

HINT:

Codes other than DTCs B009B87 and B009E87 may be output at this time, but they are not related to this check.

Post-procedure1

(c) Turn the ignition switch off.

(d) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.

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

A

REPLACE AIRBAG SENSOR ASSEMBLY

B

REPLACE SIDE AIRBAG PRESSURE SENSOR LH

C

USE SIMULATION METHOD TO CHECK