2009 Lexus LS 460L AWDFACTORY OEM SERVICE PROCEDURE

Battery Current Sensor: Inspection

  1. INSPECT BATTERY CURRENT SENSOR 
    1. Measure the resistance according to the value (s) in the table below.

      Standard resistance 

      STANDARD RESISTANCE REFERENCE CHART

      Tester Connection Specified Condition
      Tester (+) → 2 (VC)
      Tester (-) → 4 (E2)
      3 k to 10 kΩ
      Tester (+) → 2 (VC)
      Tester (-) → 3 (IB)
      0.5 kΩ or less
      Tester (+) → 3 (IB)
      Tester (-) → 4 (E2)
      3 k to 10 kΩ
      Fig 1: Identifying Battery Current Sensor Connector Terminals
      G04945748Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value (s) in the table below.

      Standard resistance 

      STANDARD RESISTANCE REFERENCE CHART

      Tester Connection Condition Specified Condition
      1 (THB) - 4 (E2) 20 to 30°C (68 to 86°F) 1.5 k to 2.5 kΩ
      (0 to 70°C (32 to 158°F)) (0.3 k to 6.0 kΩ)
      NOTE: The temperature shown in the condition is for the area surrounding the sensor, not the sensor itself.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.