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Hydraulic Brake Booster: Inspection

WARNING: This page is about a different car, the 2002 Toyota Prius, 2002 Toyota Land Cruiser, 2002 Toyota 4Runner, 2001 Toyota Prius, and 2001 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

Connect the positive (+) lead from battery terminal 1 of pump motor, and the negative (-) lead to terminal 2. Check that the pump motor operates.



  1. Connect the positive lead from the battery to terminal 1 of pump motor and the negative lead to terminal 2.
  2. Check pump motor operation.


Connect the positive (+) lead from the battery terminal 1 of pump motor, and the negative (-) lead to terminal 2. Check that the pump motor operates.

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