LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2025 >> NX 350h >> Repair and Diagnosis >> External Pages >> Different car >> Section 127 (Stop And Start System - Circuit Tests & Symptom Tests (3 Of 3)) >> Stop And Start System >> Starter Inrush Current Reduction Relay Circuit [11/2021 - ] >> Procedure

Starter Inrush Current Reduction Relay Circuit [11/2021 - ]: Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2025 Lexus NX 350, 2025 Lexus NX 250, 2024 Lexus NX 350, 2024 Lexus NX 250, and 2023 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK WAVEFORM (STARTER INRUSH CURRENT REDUCTION RELAY) 
    1. Connect the positive (+) lead of an oscilloscope to the positive (+) battery terminal and the negative (-) lead to the negative (-) battery terminal.
    2. While cranking the engine, count the number of times the waveform drops.
      GTY1204580Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard

      Waveform drops 2 times

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2021 - ] 

    Result: 

    NG 

    REPLACE STARTER 

    For A25A-FKS: Refer to REMOVAL [11/2021 - ]

    For T24A-FTS: Refer to REMOVAL [11/2021 - ]