FixVault

Ignition Switch

Disconnect ignition switch harness connector. Measure resistance between appropriate ignition switch terminals with switch in specified position. See IGNITION SWITCH RESISTANCE  table. See Fig 1 . If resistance is not as specified, replace ignition switch.

IGNITION SWITCH RESISTANCE

Switch Position Between Terminals No. Ohms
ACC 4 & 6 Less Than 5
RUN 1 & 4 Less Than 5
START 4 & 7 Less Than 5
Fig 1: Identifying Ignition Switch Terminals
G00050835Courtesy of FORD MOTOR CO.