Liftgate Key Lock & Unlock Switch
Disconnect liftgate key lock connector. Check continuity between connector terminals No. 1 (White/Black wire) and No. 2 (Blue/White wire) with switch in LOCK position. Continuity should be present. With switch not turned, no continuity should be present. With switch turned to UNLOCK position, continuity should be present between connector terminals No. 1 (White/Black wire) and No. 3 (Light Green/Red wire). Replace switch as necessary.