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MULTIFUNCTION Switch

Remove and disconnect multifunction switch. See MULTIFUNCTION SWITCH under REMOVAL & INSTALLATION. Measure resistance between specified terminals while operating multifunction switch lever to positions as specified. See Fig 1 . See MULTIFUNCTION SWITCH TESTING  table. If resistance is not as specified, replace multifunction switch.

MULTIFUNCTION SWITCH TESTING

Switch Position Between Terminals No. Ohms
Wiper Switch (1)
Off 685 & 993 9550
Intermittent 685 & 993 1910
Low 685 & 993 401
High 685 & 993 0-4
Interval Time Adjust 590 & 993 (2)
Washer Switch
On 590 & 993 0-4
Hazard Switch
On 2 & 385 0-4
On 3 & 385 0-4
Turn Signal Switch
Left Turn Signal On 3 & 44 0-4
Right Turn Signal On 5 & 44 0-4
Dimmer Switch (3)
High Beam On 12 & 196 0-4
Low Beam On 15 & 507 0-4
(1) Resistance can vary by as much as 10 percent.
(2) Rotate control knob from maximum delay to minimum delay. Resistance should gradually decrease from about 2670 ohms to about 249 ohms.
(3) Resistance can vary by as much as 5 percent.
Fig 1: Identifying Multifunction Switch Harness Connector C210 Terminals
G98H01871Courtesy of FORD MOTOR CO.