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Re: My wipers & turn signals don't work.
Take a Good Flashlight and shine it Behind the Fuses in the Fuse Panel inside the Car and see if any are Blown. Then check the Fuse Relay Box under the Hood the Same way. If all Fuses are Ok, Then locate a Relay for the Wipers and Turn Signals (They will be Seperate). If located , Replace these, If not Located, Let me know so that I can Help you. Let me Know! Please Rate My Response! Thanks!
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Check the connectors to make sure they are not getting wet or leaking, this can cause corrsion on the terminals.and intermittent operation. When it is open, fill the cavity with dielectric grease to displace any air and to occupy space where water may otherwise collect.
Check the harness as well for abraided wiriing or broken grounding wires. Also make sure the grounding wires are attached to clean spot on the body including those for the turn signals. Also check to make sure the main bulkhead harness connection through the firewall is soundly attached and clean. it would not hurt to fill those cavities with dielectric grease as well for the same reasons as above.
Where ground wires come together should also be inspected for corrosion and broken connections. And for added measure- replace the fuse. Even if it looks good, these can age and become intermittent.
The intermittent function for your wipers is controlled by the wiper control amplifier. This is an integral part of the wiper (combination) switch and is serviced only by replacing the switch assembly.