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Home >> Ford >> 1989 >> Thunderbird Base >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Anti-Theft System >> Testing >> Door Lock Switch

Door Lock Switch

Ensure that key is removed from door lock. Measure switch resistance. If not more than 25,000 ohms, replace switch. Rotate key 45 degrees from center of travel. Measure switch resistance. If not less than 200 ohms, replace switch.