Door Unlock Detection Switch

Remove door trim and door lock assembly. Locate and disconnect unlock detection switch. On Tercel with power door locks, check for continuity between 4-pin connector terminals No. 1 (left front is Pink/Blue wire, right front is Pink wire, and rear is Red/Yellow wire) and No. 3 (White/Black wire). On Tercel without power door locks, check for continuity exists between 2-pin terminals No. 1 (left front is Pink/Blue wire, right front is Pink wire, and rear is Red/Yellow wire) and No. 2 (White/Black wire). There should be continuity when door lock is in unlocked position. There should be no continuity when door lock is in locked position. If continuity is not as specified replace door unlock detection switch. If continuity is as specified, inspect harness and connectors between door unlock detection switch and ATS ECU. See TESTING ANTI-THEFT CIRCUITS .