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Wiper Switch Continuity Test

Test Switch continuity with an ohmmeter connected between switch terminals as shown in Fig 1 .  To detect marginal operation of the switch, move the switch lever as each reading is being taken. If switch does not show continuity or if poor continuity exists, replace switch.

Fig 1: Wiper Switch Continuity Test Terminal Locations
G09358854Courtesy of FORD MOTOR CO.
WIPER CONTINUITY TEST

Position Standard Wiper Intermittent Wiper
Off P-L  
LOW B-L B-L
HIGH B-H B-H-L
WASH B-W B-W
INTER   B-1
ANY   (1)R1-R2
(1) Variable resistance between R1 and R2 should be minimum of 420 and maximum of 13, 000 ohms.