2001 Toyota PriusFACTORY OEM SERVICE PROCEDURE

Door Unlock Detection Switch

  1. Remove door panel for access to appropriate door lock assembly which contains the door lock motor and door unlock detection switch. See Figure.
  2. To check door unlock detection switch on driver's side front door or passenger's side front door, go to next step. To check door unlock detection switch on driver's side rear door or passenger's side rear door, go step  4.
  3. On driver's side front door or passenger's side front door, disconnect the 6-pin electrical connector at door lock assembly. Note electrical terminal identification on door lock assembly and switch positions. See Fig 1. Using ohmmeter, check that no continuity exists between terminals No. 3 and 4 with switch in LOCK position and that continuity exists between terminals No. 3 and 4 with switch in UNLOCK position. Replace door unlock detection switch if continuity is not as specified.
  4. On driver's side rear door or passenger's side rear door, disconnect the 4-pin electrical connector at door lock assembly. Note electrical terminal identification on door lock assembly and switch positions. See Fig 1. On driver's side rear door, using ohmmeter, check that no continuity exists between terminals No. 1 and 2 with switch in LOCK position and that continuity exists between terminals No. 1 and 2 with switch in UNLOCK position. On passenger's side rear door, using ohmmeter, check that no continuity exists between terminals No. 3 and 4 with switch in LOCK position and that continuity exists between terminals No. 3 and 4 with switch in UNLOCK position. Replace door unlock detection switch if continuity is not as specified.
    Fig 1: Identifying Electrical Terminals At Door Lock Assembly & Switch Positions
    G00032717Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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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.