Door Unlock Detection Switch

Remove door trim and door lock assembly. Locate and disconnect 4-pin door lock motor and unlock detection switch connector. Check for continuity between connector terminals No. 1 (left front is Light Green/Black, right front is Yellow and left and right rear is Blue/Orange wire) and No. 3 (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 PIN VOLTAGE TESTS . If found to be defective, replace ATS ECU and retest system.