You have to remove the horn, steering wheel, retainer, turn signal switch, Ignition cylinder, and then upon removal of the upper steering column you will find the wiper switch attached to the upper steering column with a greased pin. The wiper switch also has to line up with the Hi Beam switch assembly upon re-installation.
Tools needed will be a Steering wheel puller, a 13/16 socket with extension(or deep well), a Retaining plate removal tool (looks like a pickle fork with a bolt in the middle of it), pliers to remove the retaining ring, Phillips head screw driver, and torx bits
How do you remove and replace wiper switch on 2002 Chevy Cavalier
The 1989 Chevy Silverado pickup truck window wiper relay switch can be found on the firewall in the engine compartment. The relay switch will be on the passenger side of the firewall.
For starters try activating the wiper switch...
You must first remove the wiper arms. then, remove the screws holding the black plastic grill under the wiper arms. This will expose the motor. You will then need to disconnect the wiper arm transmission linkage from the motor, the remove the three bolts holding the motor on. Install in reverse order.
The 2004 Chevy Malibu windshield wiper relay switch can be found on the firewall in the engine compartment. The windshield wiper relay switch will be on the drivers side of the firewall.
left hand side , same as the wiper switch....
remove wiring harness, remove nuts, place new one (or rebuilt one) on, replace nuts, plug in harness.
Remove the wiring harness from the back of your 1994 Chevy Cheyenne wiper motor. Remove the traveling arm linkage. Remove the wiper motor retaining bolts. Reverse the process to install the new wiper motor.
To replace the wiper/headlight switch, you must first remove the two screws(normally but maybe more, depending on model) that retain the steering wheel cover/horn button. this will give you access to the switch. remove retaining screws to allow removal of switch. replace in reverse order. easy as pie.
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Remove the dash bezel, remove the switch, reverse process with new switch.
The switch for the rear wiper will be on the dash, to the left of the steering wheel.