Back Door Lock & Unlock Detection Switch Circuit

1994 Toyota Previa LE, 2TZ-FZE, AWDSECTION Back Door Lock & Unlock Detection Switch Circuit

Refer to previous step. Close and lock slide door with key. Close back door and unlock with key. Ensure continuity exists between ground and ATS ECU connector terminal A2 (Light Green/Black wire). If continuity is not present, repair open in back door unlock switch circuit. If continuity is present, replace ATS ECU and retest.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.