2009 Lexus LS 460 AWDFACTORY OEM SERVICE PROCEDURE

On-Vehicle Inspection

  1. CHECK VVT SENSOR OUTPUT VOLTAGE 
    Fig 1: Identifying VVT Sensor Connectors
    G06190188Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the engine switch on (IG).
    2. Measure the voltage according to the value (s) in the table below.

      Standard voltage 

      STANDARD VOLTAGE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      E1-18 (VC) - E2-33 (VV1-) Engine switch on (IG) 5V
      E1-18 (VC) - E4-29 (VV2-) Engine switch on (IG) 5V
      E1-18 (VC) - E1-33 (EV1-) Engine switch on (IG) 5V
      E1-18 (VC) - E3-29 (EV2-) Engine switch on (IG) 5V
    3. While turning the crankshaft pulley by hand, measure the voltage between each terminal. Check that the voltage changes between the Hi range and Lo range shown in the table below.

      Standard voltage 

      STANDARD VOLTAGE SPECIFICATION

      Sensor Position Tester Connection Switch Condition Specified Condition
      Bank 1 (Intake side) E2-25 (VV1+) - E2-33 (VV1-) Engine switch on (IG) 3.75 to 4.S0 V (Voltage (Hi)) 0.50 to 1.25 V (Voltage (Lo))
      Bank 2 (Intake side) E4-19 (VV2+) - E4-29 (VV2-) Engine switch on (IG) 3.75 to 4.50 V (Voltage (Hi)) 0.50 to 1.25 V (Voltage (Lo))
      Bank 1 (Exhaust side) E1-26 (EV1+) - E1-33 (EV1-) Engine switch on (IG) 3.75 to 4.50 V (Voltage (Hi)) 0.50 to 1.25 V (Voltage (Lo))
      Bank 2 (Exhaust side) E3-22 (EV2+) - E3-29 (EV2-) Engine switch on (IG) 3.75 to 4.50 V (Voltage (Hi)) 0.50 to 1.25 V (Voltage (Lo))
Factory Service Tools

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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.

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