Wiper Switch

Disconnect multifunction switch connector under steering column. Measure resistance between specified terminals. See WIPER SWITCH RESISTANCE table. See Fig 1 . Replace multifunction switch if resistance is not as specified.

WIPER SWITCH RESISTANCE

Switch Position

Terminals No.

⁽¹⁾ Ohms

Washer

1 & 2

⁽²⁾

Off

1 & 2

103,300

Wipers

Off

2 & 3

47,600

Low Speed

2 & 3

4080

High Speed

2 & 3

⁽²⁾

Interval (MAX)

1 & 2

⁽³⁾ 103,300

Interval (MIN)

1 & 2

⁽³⁾ 3300

⁽¹⁾	Resistance may vary by as much as 10 percent.

⁽²⁾	Continuity should exist.

⁽³⁾	Resistance should vary smoothly between specified limits as knob is rotated between MIN and MAX positions.

Fig 1: Identifying Wiper Switch Terminals (Mark VIII)

Courtesy of FORD MOTOR CO.