Inner Mirror ELECTROCHROMIC Circuit Test

Disconnect inner rear view mirror connector. Check for continuity between harness connector terminal No. 4 (White/Black wire) and ground. Continuity should exist. Repair as necessary. See WIRING DIAGRAMS. Check voltage at harness connector terminal No. 1 (Red/Blue wire). No voltage should exist with ignition switch in LOCK or ACC position. Battery voltage should exist with ignition ON. Repair as necessary. See WIRING DIAGRAMS.