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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System - Diagnostic Codes (5 Of 7) >> Airbag System >> DTC B1160-49: Airbag ECU (Microcomputer) Internal Electronic Failure; DTC B1160-9E: Airbag ECU (Microcomputer) Stuck On; DTC B1161-49: Airbag ECU (Main ASIC) Internal Electronic Failure; DTC B1161-9E: Airbag ECU (Main ASIC) Stuck On; DTC B1162-49: Airbag ECU (Sub ASIC) Internal Electronic Failure; DTC B1163-11: Airbag ECU (IC and Device) Circuit Short to Ground; DTC B1163-49: Airbag ECU (IC and Device) Internal Electronic Failure; DTC B1163-9E: Airbag ECU (IC and Device) Stuck On; DTC B1163-9F: Airbag ECU (IC and Device) Stuck Off; DTC B1164-49: Airbag ECU (G Sensor 1) Internal Electronic Failure; DTC B1164-83: Airbag ECU (G Sensor 1) Value of Signal Protection Calculation Incorrect; DTC B1164-84: Airbag ECU (G Sensor 1) Signal Below Allowable Range; DTC B1164-85: Airbag ECU (G Sensor 1) Signal Above Allowable Range; DTC B1165-49: Airbag ECU (G Sensor 2) Internal Electronic Failure; DTC B1165-83: Airbag ECU (G Sensor 2) Value of Signal Protection Calculation Incorrect; DTC B1165-84: Airbag ECU (G Sensor 2) Signal Below Allowable Range; DTC B1165-85: Airbag ECU (G Sensor 2) Signal Above Allowable Range; DTC B1166-49: Airbag ECU (G Sensor 3) Internal Electronic Failure; DTC B1166-83: Airbag ECU (G Sensor 3) Value of Signal Protection Calculation Incorrect; DTC B1166-84: Airbag ECU (G Sensor 3) Signal Below Allowable Range; DTC B1166-85: Airbag ECU (G Sensor 3) Signal Above Allowable Range; DTC B1167-49: Airbag ECU (Roll Sensor) Internal Electronic Failure; DTC B1167-83: Airbag ECU (Roll Sensor) Value of Signal Protection Calculation Incorrect; DTC B1167-84: Airbag ECU (Roll Sensor) Signal Below Allowable Range; DTC B1167-85: Airbag ECU (Roll Sensor) Signal Above Allowable Range; DTC B1168-00: Airbag ECU Failure (Write Inhibit of EDR); DTC P05BB-00: Restraints Deployed [11/2023 - ] >> Procedure

DTC B1160-49: Airbag ECU (Microcomputer) Internal Electronic Failure; DTC B1160-9E: Airbag ECU (Microcomputer) Stuck On; DTC B1161-49: Airbag ECU (Main ASIC) Internal Electronic Failure; DTC B1161-9E: Airbag ECU (Main ASIC) Stuck On; DTC B1162-49: Airbag ECU (Sub ASIC) Internal Electronic Failure; DTC B1163-11: Airbag ECU (IC and Device) Circuit Short to Ground; DTC B1163-49: Airbag ECU (IC and Device) Internal Electronic Failure; DTC B1163-9E: Airbag ECU (IC and Device) Stuck On; DTC B1163-9F: Airbag ECU (IC and Device) Stuck Off; DTC B1164-49: Airbag ECU (G Sensor 1) Internal Electronic Failure; DTC B1164-83: Airbag ECU (G Sensor 1) Value of Signal Protection Calculation Incorrect; DTC B1164-84: Airbag ECU (G Sensor 1) Signal Below Allowable Range; DTC B1164-85: Airbag ECU (G Sensor 1) Signal Above Allowable Range; DTC B1165-49: Airbag ECU (G Sensor 2) Internal Electronic Failure; DTC B1165-83: Airbag ECU (G Sensor 2) Value of Signal Protection Calculation Incorrect; DTC B1165-84: Airbag ECU (G Sensor 2) Signal Below Allowable Range; DTC B1165-85: Airbag ECU (G Sensor 2) Signal Above Allowable Range; DTC B1166-49: Airbag ECU (G Sensor 3) Internal Electronic Failure; DTC B1166-83: Airbag ECU (G Sensor 3) Value of Signal Protection Calculation Incorrect; DTC B1166-84: Airbag ECU (G Sensor 3) Signal Below Allowable Range; DTC B1166-85: Airbag ECU (G Sensor 3) Signal Above Allowable Range; DTC B1167-49: Airbag ECU (Roll Sensor) Internal Electronic Failure; DTC B1167-83: Airbag ECU (Roll Sensor) Value of Signal Protection Calculation Incorrect; DTC B1167-84: Airbag ECU (Roll Sensor) Signal Below Allowable Range; DTC B1167-85: Airbag ECU (Roll Sensor) Signal Above Allowable Range; DTC B1168-00: Airbag ECU Failure (Write Inhibit of EDR); DTC P05BB-00: Restraints Deployed [11/2023 - ]: Procedure

  1. CHECK DTC 

    Pre-procedure1

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

      Procedure1

    2. Check for DTCs.

      Body Electrical > SRS Airbag > Trouble Codes 

      Result

      Result Proceed to
      B1160-49, B1160-9E, B1161-49, B1161-9E, B1162-49, B1163-11, B1163-49, B1163-9E, B1163-9F, B1164-49, B1164-83, B1164-84, B1164-85, B1165-49, B1165-83, B1165-84, B1165-85, B1166-49, B1166-83, B1166-84, B1166-85, B1167-49, B1167-83, B1167-84, B1167-85, B1168-00, P05BB-00 and other DTCs are output A
      B1160-49, B1160-9E, B1161-49, B1161-9E, B1162-49, B1163-11, B1163-49, B1163-9E, B1163-9F, B1164-49, B1164-83, B1164-84, B1164-85, B1165-49, B1165-83, B1165-84, B1165-85, B1166-49, B1166-83, B1166-84, B1166-85, B1167-49, B1167-83, B1167-84, B1167-85, B1168-00 or P05BB-00 is output B
      NOTE:

      If only DTC B1160-49, B1160-9E, B1161-49, B1161-9E, B1162-49, B1163-11, B1163-49, B1163-9E, B1163-9F, B1164-49, B1164-83, B1164-84, B1164-85, B1165-49, B1165-83, B1165-84, B1165-85, B1166-49, B1166-83, B1166-84, B1166-85, B1167-49, B1167-83, B1167-84, B1167-85, B1168-00 or P05BB-00 is output, do not clear the DTCs. Replace the airbag sensor assembly.

      HINT: 

      If any DTCs other than DTC B1160-49, B1160-9E, B1161-49, B1161-9E, B1162-49, B1163-11, B1163-49, B1163-9E, B1163-9F, B1164-49, B1164-83, B1164-84, B1164-85, B1165-49, B1165-83, B1165-84, B1165-85, B1166-49, B1166-83, B1166-84, B1166-85, B1167-49, B1167-83, B1167-84, B1167-85, B1168-00 or P05BB-00 are also output, troubleshoot those DTCs first.

      Post-procedure1

    3. None

    Result: 

    GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2023 - ] 

    Result: 

    REPLACE AIRBAG SENSOR ASSEMBLY. Refer to  REMOVAL [11/2023 - ]