Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000289VG
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [11/2022 -           ]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B166A62; Right Side Restraints Sensor 5 / Left Side Restraints Sensor 5 Signal Compare Failure; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]

DTC

B166A62

Right Side Restraints Sensor 5 / Left Side Restraints Sensor 5 Signal Compare Failure

DESCRIPTION

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

DTC Output from

Priority

Test Mode / Check Mode

B166A62

Right Side Restraints Sensor 5 / Left Side Restraints Sensor 5 Signal Compare Failure

The difference between the pressure detected by the side airbag pressure sensor LH and the side airbag pressure sensor RH exceeds a certain value a certain number of times.

  • Side airbag pressure sensor LH
  • Side airbag pressure sensor RH
  • Airbag sensor assembly

Comes on

SRS Airbag

A

Does not apply to test/check mode

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 DTC

(a) Check for DTCs.

Body Electrical > SRS Airbag > Trouble Codes

Result

Proceed to

No DTCs in the table below are output

A

Any of the DTCs in the table below are output

B

Malfunction Content

System

Relevant DTC

Side collision sensor circuit (bus 1) malfunction

Airbag system

B009B64

Left Side Restraints Sensor 5 Signal Plausibility Failure

B009B83

Left Side Restraints Sensor 5 Value of Signal Protection Calculation Incorrect

B009B84

Left Side Restraints Sensor 5 Signal Below Allowable Range

B009B85

Left Side Restraints Sensor 5 Signal Above Allowable Range

B009B87

Left Side Restraints Sensor 5 Missing Message

B009B96

Left Side Restraints Sensor 5 Component Internal Failure

B009E64

Right Side Restraints Sensor 5 Signal Plausibility Failure

B009E83

Right Side Restraints Sensor 5 Value of Signal Protection Calculation Incorrect

B009E84

Right Side Restraints Sensor 5 Signal Below Allowable Range

B009E85

Right Side Restraints Sensor 5 Signal Above Allowable Range

B009E87

Right Side Restraints Sensor 5 Missing Message

B009E96

Right Side Restraints Sensor 5 Component Internal Failure

HINT:

If DTCs in the table above are output, troubleshoot those DTCs first.

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

2.

CLEAR DTC

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.

(c) Replace the side airbag pressure sensor RH with a new one or known good one.

HINT:

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: SIDE AIRBAG SENSOR (for Front Door): REMOVAL

HINT:

  • When using a new part, since the side airbag pressure sensor LH and RH have the same part number, prepare either one.
  • Use the prepared side airbag pressure sensor to check the side airbag pressure sensor LH as well.

(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.

Procedure1

(f) Clear the DTCs stored in memory.

Body Electrical > SRS Airbag > Clear DTCs

Post-procedure1

(g) Turn the ignition switch off.

NEXT

3.

CHECK SIDE AIRBAG PRESSURE SENSOR RH

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

B166A62 is output

A

B166A62 is not output

B

HINT:

Codes other than DTC B166A62 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 that was installed for testing to its original location.

B

REPLACE SIDE AIRBAG PRESSURE SENSOR RH

A

4.

CLEAR DTC

Pre-procedure1

(a) Replace the side airbag pressure sensor LH with a new one or known good one.

HINT:

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: SIDE AIRBAG SENSOR (for Front Door): REMOVAL

HINT:

  • When using a new part, since the side airbag pressure sensor LH and RH have the same part number, prepare either one.
  • Use the prepared side airbag pressure sensor to check the side airbag pressure sensor RH as well.

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

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

Procedure1

(d) Clear the DTCs stored in memory.

Body Electrical > SRS Airbag > Clear DTCs

Post-procedure1

(e) Turn the ignition switch off.

NEXT

5.

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

B166A62 is output

A

B166A62 is not output

B

HINT:

Codes other than DTC B166A62 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 LH that was installed for testing to its original location.

A

REPLACE AIRBAG SENSOR ASSEMBLY

B

REPLACE SIDE AIRBAG PRESSURE SENSOR LH