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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Starter >> Stop And Start System - Diagnostic Codes (3 Of 3) & Circuit Tests (1 Of 3) >> Stop And Start System >> Starter Signal Circuit [11/2023 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:
  • After replacing the starter assembly, perform initialization of the number of starter operations stored in the engine stop and start ECU.

    Refer to REGISTRATION [11/2023 - ]

  • After replacing the engine stop and start ECU or airbag ECU assembly, clear and calibrate the deceleration sensor zero point in the engine stop and start ECU.

    Refer to REGISTRATION [11/2023 - ]

  • After replacing the engine stop and start ECU assembly, perform learning of the external backup boost converter (eco run vehicle converter assembly).

    Refer to REGISTRATION [11/2023 - ]

  • When the engine stop and start ECU or oil pump with solenoid assembly is replaced, check the oil pump with solenoid assembly.

    Refer to REGISTRATION [11/2023 - ]

  • Before replacing the engine stop and start ECU, read the number of starter operations, total number of engine starts and write it into a new engine stop and start ECU.

    Refer to REGISTRATION [11/2023 - ]

  • When the starter assembly is replaced, "ST relay" must be also replaced.
  • Inspect the fuses for circuits related to this system before performing the following procedure.