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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 175 (Anti-Lock Brake System) >> Diagnosis & Testing >> Brake Actuator >> Wheel Solenoid Operation

Wheel Solenoid Operation

WARNING: This page is about a different car, the 2003 Lexus LS 430, 2002 Lexus LS 430, and 2001 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. Depress the brake pedal, turn the SFRH and SFRR (right front wheel) solenoid ON simultaneously and check that the pedal cannot be depressed.
  2. Turn the SFRH and SFRR solenoid OFF simultaneously and check that the pedal can be depressed.
  3. Turn the motor relay ON and check that the pedal returns.
  4. Turn the motor relay OFF and release the brake pedal.
  5. Using the same procedure, check the solenoids of the other wheels. Left front wheel is SFLH and SFLR. Right rear wheel is SRRH and SRLR and left rear wheel is SRLH and SRLR.
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