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Home >> Toyota >> 2025 >> Corolla LE >> Repair and Diagnosis >> Electrical >> Gauges >> Meter / Gauge System (Except 12.3 Inch) - Diagnostic Codes & Symptom Tests (1 Of 2) >> METER / GAUGE SYSTEM (except 12.3 Inch Display) >> DTC B1507-18: Turn Signal Light Circuit Current Below Threshold [09/2022 - 11/2022] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:
  • When replacing any of the following ECUs, always replace it with a new one. If any of the following ECUs is replaced with one which was installed to another vehicle, the information stored in it will not match the information from the vehicle and a DTC may be stored.
  • When replacing the headlight ECU sub-assembly LH, always replace it with a new one. If a headlight ECU sub-assembly LH which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
  • for TMC Made

    When replacing the combination meter assembly, update the ECU security key.

    Refer to UPDATE ECU SECURITY KEY [09/2022 - ]

  • Inspect the turn signal light bulbs before performing the following procedure.