One way to power the anti-slosh module in a tach cluster is to add a terminal to the dash harness. Splice it into the R/Y wire (I soldered the W/Pk wire to the R/Y terminal) and insert it into the unused position 14. The red lock plate must be removed first.
This is a '94 Bronco connector.
Another way is to solder a jumper wire to the film circuit traces from position 13 to 14. Yet another is to extend the wire from the LED (soldered to the gauge's hot post) down to the module, right beside the LED's ground wire.
ERROR: Air Bags were not used on Ford trucks in '93.
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See also:
MotorCraft 2016 Wiring Pigtail Guide 
