Slide Door Key Lock & Unlock Detection Switch Circuit

Turn ignition off. Disconnect ATS ECU connector. Close back door and lock with key. Close slide door and unlock with key. Ensure continuity exists between ATS ECU connector terminals A2 (Light Green/Black wire) and B4 (Blue/Black wire). If continuity is not present, repair open in slide door unlock switch circuit. If continuity is present, go to next step.