LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lincoln >> 1974 >> Mark IV >> Repair and Diagnosis >> Body & Frame >> Windows >> Electric Window Controls >> Testing >> Relay Testing
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Relay Testing

Connect one lead of a test lamp to ground and the other to output side of relay. Turn ignition switch to "ON" or "ACC" position and test lamp should light. If not, test continuity of wiring from ignition switch to actuating terminal of relay. Check voltage availability at input terminal of relay. If wiring and voltage is functioning correctly, replace relay.