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Front Wiper/Washer Switch

Remove steering column covers for access to connectors on back of multifunction switch (combination switch). Disconnect wiper/washer switch connector from right side of multifunction switch. Measure resistance across switch terminals. See WIPER/WASHER SWITCH RESISTANCE  table. See Fig 1 . If resistance is not as specified, replace wiper/washer switch. See appropriate STEERING COLUMN SWITCHES article.

WIPER/WASHER SWITCH RESISTANCE

Wiper Switch Position Washer Switch Position (1) Ohms
Terminals A & E (2)
MIST OFF 300
ON 91
OFF OFF Infinite
OFF ON 130
INT. 1 OFF 2090
ON 122
INT. 2 OFF 990
ON 115
INT. 3 OFF 560
ON 106
LOW OFF 300
ON 91
HIGH OFF 300
HIGH ON 91
Terminals A & F (2)
HIGH ON Less Than 1
Terminals E & F (2)
HIGH ON 91
(1) Plus or minus 10 percent.
(2) See Fig 1 .
Fig 1: Identifying Wiper/Washer Switch Terminals
G95E14641Courtesy of GENERAL MOTORS CORP.
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