Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000289TN
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [11/2022 -           ]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B005000; Driver Seat Belt Sensor Circuit Undetermined Failure; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]

DTC

B005000

Driver Seat Belt Sensor Circuit Undetermined Failure

DESCRIPTION

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

DTC Output from

Priority

Test Mode / Check Mode

B005000

Driver Seat Belt Sensor Circuit Undetermined Failure

When it is determined that the specified number of times or more is not achieved after the ignition switch is turned to ON.
  • Harness or connector
  • Driver seat buckle switch (Front seat inner belt assembly 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 front seat inner belt assembly 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

Front Seat Inner Belt Assembly LH

*2

Airbag Sensor Assembly

*3

Wire Harness

(b) Disconnect the front seat inner belt assembly 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.

INSPECT FRONT SEAT INNER BELT ASSEMBLY LH

Pre-procedure1

(a) Remove the front seat inner belt assembly LH.

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; SEAT BELT: FRONT SEAT INNER BELT ASSEMBLY: REMOVAL

Procedure1

(b) Inspect the front seat inner belt assembly LH.

*1

Front Seat Inner Belt Assembly LH

*2

Auxiliary Battery

*a

Component without harness connected

(Front Seat Inner Belt Assembly LH)

*b

Tester

Standard Current:

Tester Connection

Condition

Specified Condition

Tester positive (+) - 1

Tester negative (-) - Auxiliary battery negative (-)

Seat belt fastened

12.0 to 18.0 mA

Seat belt not fastened

4.0 to 7.0 mA

Post-procedure1

(c) None

NG

REPLACE FRONT SEAT INNER BELT ASSEMBLY LH

OK

4.

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

Pre-procedure1

(a) Using a service wire, connect terminals 30 (LBE+) and 24 (GNDL) of connector B.

NOTICE:

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

*1

Front Seat Inner Belt Assembly LH

*2

Airbag Sensor Assembly

*3

Wire Harness

*4

Service Wire

*a

Front view of wire harness connector

(to Front Seat Inner Belt Assembly 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

O23-2 (LBE+) - O23-1 (LBE-)

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

O23-2 (LBE+) - Body ground

Always

1 MΩ or higher

O23-1 (LBE-) - Body ground

Always

1 MΩ or higher

*1

Front Seat Inner Belt Assembly LH

*2

Airbag Sensor Assembly

*3

Wire Harness

*a

Front view of wire harness connector

(to Front Seat Inner Belt Assembly 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

O23-2 (LBE+) - Body ground

Ignition switch ON

Below 1 V

O23-1 (LBE-) - Body ground

Ignition switch ON

Below 1 V

Result:

Proceed to

OK

NG

*1

Front Seat Inner Belt Assembly LH

*2

Airbag Sensor Assembly

*3

Wire Harness

*a

Front view of wire harness connector

(to Front Seat Inner Belt Assembly 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

Front Seat Inner Belt Assembly LH

*2

Airbag Sensor Assembly

*3

Wire Harness

(b) Connect the front seat inner belt assembly LH connector.

(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 DTC

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

B005000 is output

A

B005000 is not output

B

HINT:

Codes other than DTC B005000 may be output at this time, but they are not related to this check.

Post-procedure1

(c) None

A

REPLACE AIRBAG SENSOR ASSEMBLY

B

USE SIMULATION METHOD TO CHECK