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MultiFunction Switch

From 1983 Ford Bronco “That dirty old truck”, documented by Steve83.

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1983 Ford Bronco - MultiFunction Switches used on '92-up Ford trucks, other Ford products, & other vehicles including the Nissan Quest. There are electrical &… 1983 Ford Bronco - It's very common for older MFSs to slowly stop working, and replacements range from $40-200, so repairing it is certainly an option to cons… 1983 Ford Bronco - Hold the case together firmly as the screws are removed. The springs are near the hazard button, so take those screws out last. Push the le… 1983 Ford Bronco - The parts will be loose as soon as the case separates, so hold it this way. Sliding the top slightly toward center will disengage the beam… 1983 Ford Bronco - While splitting the case, release the catch on the wiper connector using a fine flat screwdriver or probe through this access hole. It will… 1983 Ford Bronco - At all times, make SURE the lever stays fully down on the rear case half, including when you set the assembly down. If it slips up & off, i… 1983 Ford Bronco - There are several possible failures, and this may be a rare one: the main headlight wiper overheated. Note that this switch contains a wipe… 1983 Ford Bronco - This is probably the most common failure: simple corrosion of the contacts & wipers. All circuits will be intermittent, and failure will be… 1983 Ford Bronco - These are the functions of the wipers & sliders. If you can't read the text labels in the image, click it to supersize. The black peg in th… 1983 Ford Bronco - These are the functions of the contacts. If you can't read the text labels in the image, click it to supersize. Normal (hazard & turns OFF,… 1983 Ford Bronco - Rear case assembly 1983 Ford Bronco - Rinse the contacts with electrical contact cleaner, then polish them with fine steel wool or emery paper. The headlight slot will be the mo… 1983 Ford Bronco - Cleaning the wipers is more difficult because they're spring-loaded, and some are on loose parts. Keep the lever held down in the rear case… 1983 Ford Bronco - Once all the contacts are clean, apply a light film of silicone electrical grease (NOT dielectric, thermal, or chassis; or battery snot, or… 1983 Ford Bronco - To clean the wiper switch, it's not necessary to remove the MFS from the column. Just pop the cap off the end. 1983 Ford Bronco - To clean the wiper switch, it's not necessary to remove the MFS from the column. Just pop the cap off the end. 1983 Ford Bronco - To clean the wiper switch, it's not necessary to remove the MFS from the column. Just pop the cap off the end and remove the screw while ho… 1983 Ford Bronco - As the collar comes off, watch for the detent pins & spring to fall out (the brass pin near the word "OFF"). 1983 Ford Bronco - Before removing the switch guts, note the position for reassembly. This shows the switch in the OFF position. 1983 Ford Bronco - After cleaning the contacts (with Electrical Contact Cleaner), apply a light film of silicone electrical grease, and reassemble the switch.…