Door Key Lock & Unlock Switch
Locate door key lock and unlock switch connector behind door panel. Disconnect 3-pin connector. Ensure continuity exists between switch terminals No. 2 (Left, Green/Yellow wire; Right, Blue/Yellow wire) and No. 3 (White/Black wire) with switch in unlock position. Ensure continuity exists between switch terminals No. 1 (Green/Red wire) and No. 3 with switch in lock position. If continuity is not as specified, replace switch and retest system.