DTC B166A-62: Right Side Restraints Sensor 5 / Left Side Restraints Sensor 5 Signal Compare Failure [10/2022 - ]: Procedure

1. Check for DTCs.

   Body Electrical > SRS Airbag > Trouble Codes 

   Result

   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	B009B-64	Left Side Restraints Sensor 5 Signal Plausibility Failure
   		B009B-83	Left Side Restraints Sensor 5 Value of Signal Protection Calculation Incorrect
   		B009B-84	Left Side Restraints Sensor 5 Signal Below Allowable Range
   		B009B-85	Left Side Restraints Sensor 5 Signal Above Allowable Range
   		B009B-87	Left Side Restraints Sensor 5 Missing Message
   		B009B-96	Left Side Restraints Sensor 5 Component Internal Failure
   		B009E-64	Right Side Restraints Sensor 5 Signal Plausibility Failure
   		B009E-83	Right Side Restraints Sensor 5 Value of Signal Protection Calculation Incorrect
   		B009E-84	Right Side Restraints Sensor 5 Signal Below Allowable Range
   		B009E-85	Right Side Restraints Sensor 5 Signal Above Allowable Range
   		B009E-87	Right Side Restraints Sensor 5 Missing Message
   		B009E-96	Right Side Restraints Sensor 5 Component Internal Failure

   HINT: 

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

Result: 

B 

GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2022 - ] 

Result: 

A 

See step  2

Pre-procedure1

• Turn the ignition switch off.
• Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
• Replace the side airbag pressure sensor RH with a new one or known good one.

  HINT: 

  Refer to REMOVAL [10/2022 - 08/2023] , or refer to REMOVAL [08/2023 - ]

  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.
• Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
• Turn the ignition switch to ON, and wait for at least 60 seconds.

• Clear the DTCs stored in memory.

  Body Electrical > SRS Airbag > Clear DTCs 

  Result

  Proceed to
  NEXT

Post-procedure1

• Turn the ignition switch off.

Result: 

NEXT 

See step  3

Pre-procedure1

• Turn the ignition switch to ON, and wait for at least 60 seconds.

• Check for DTCs.

  Body Electrical > SRS Airbag > Trouble Codes 

  Result

  Result	Proceed to
  B166A-62 is output	A
  B166A-62 is not output	B

  HINT: 

  Codes other than DTC B166A-62 may be output at this time, but they are not related to this check.

Post-procedure1

• Turn the ignition switch off.
• Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
• Return the side airbag pressure sensor RH that was installed for testing to its original location.

Result: 

B 

REPLACE SIDE AIRBAG PRESSURE SENSOR RH. Refer to  REMOVAL [10/2022 - 08/2023]  , or refer to  REMOVAL [08/2023 - ] 

Result: 

A 

See step  4

Pre-procedure1

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

  HINT: 

  Refer to REMOVAL [10/2022 - 08/2023] , or refer to REMOVAL [08/2023 - ]

  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.
• Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
• Turn the ignition switch to ON, and wait for at least 60 seconds.

• Clear the DTCs stored in memory.

  Body Electrical > SRS Airbag > Clear DTCs 

  Result

  Proceed to
  NEXT

Post-procedure1

• Turn the ignition switch off.

Result: 

NEXT 

See step  5

Pre-procedure1

• Turn the ignition switch to ON, and wait for at least 60 seconds.

• Check for DTCs.

  Body Electrical > SRS Airbag > Trouble Codes 

  Result

  Result	Proceed to
  B166A-62 is output	A
  B166A-62 is not output	B

  HINT: 

  Codes other than DTC B166A-62 may be output at this time, but they are not related to this check.

Post-procedure1

• Turn the ignition switch off.
• Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
• Return the side airbag pressure sensor LH that was installed for testing to its original location.

Result: 

A 

REPLACE AIRBAG ECU ASSEMBLY. Refer to  REMOVAL [10/2022 - 08/2023]  , or refer to  REMOVAL [08/2023 - ] 

Result: 

B 

REPLACE SIDE AIRBAG PRESSURE SENSOR LH. Refer to  REMOVAL [10/2022 - 08/2023]  , or refer to  REMOVAL [08/2023 - ]