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HOMESERVICE MANUALSLEXUS2007ES 350REPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESTRACTION CONTROLBRAKE CONTROLBRAKE ACTUATORON-VEHICLE INSPECTION
2007 Lexus ES 350

On-Vehicle Inspection

2007 Lexus ES 350SECTION On-Vehicle Inspection
  1. CONNECT INTELLIGENT TESTER 
    1. Connect the intelligent tester to the DLC3.
    2. Start the engine and run it at idle.
    3. Select the Active Test mode on the intelligent tester.

      HINT:

      Refer to the intelligent tester operator's manual for further details.

    Fig 1: Connecting Intelligent Tester To DLC3
    G05250268Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT ACTUATOR MOTOR OPERATION 
    NOTE: Do not keep a motor relay on continuously for more than 5 seconds. When operating it continuously, set an interval of more than 20 seconds.
    1. With the motor relay on, check the actuator motor operation sounds.
    2. Turn the motor relay off.
    3. Depress the brake pedal and hold it for approximately 15 seconds. Check that the brake pedal cannot be depressed farther.
    4. With the motor relay on, check that the pedal does not pulsate.
    5. Turn the motor relay off and release the brake pedal.
  3. INSPECT RIGHT FRONT WHEEL OPERATION 
    NOTE: Do not turn on a solenoid in a manner different than described below.
    1. Depress the brake pedal and hold it.
    2. Turn the SFRH and SFRR solenoids on simultaneously, and check that the pedal cannot be depressed.
    3. Turn the SFRH and SFRR solenoids off simultaneously, and check that the pedal can be depressed.
      NOTE: Do not keep a motor relay on continuously for more than 5 seconds. When operating them continuously, set an interval of more than 20 seconds.
    4. Turn the motor relay on and check that the pedal returns.
      NOTE: Do not keep a motor relay on continuously for more than 5 seconds. When operating it continuously, set an interval of more than 20 seconds.
    5. Turn the motor relay off and release the brake pedal.
  4. INSPECT OTHER WHEEL OPERATION 
    1. Using the same procedure, check the solenoids of the other wheels.

      HINT:

      • Left front wheel: SFLH, SFLR
      • Right rear wheel: SRRH, SRRR
      • Left rear wheel: SRLH, SRLR
RENDER: 1.0x

NO RELATED

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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.