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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 >> Actuator Motor Operation

Actuator Motor 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. With the motor relay ON, check the actuator motor operation noise.
  2. Turn the motor relay OFF. Depress the brake pedal and hold it for about 15 seconds. Check that the brake pedal cannot be depressed.
  3. Turn the motor relay ON and check that the pedal does not pulsate.
  4. Turn the motor relay OFF and release the brake pedal.
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