yo,
Check connector inside B Pillar; for corrosion, damage, etc.
Next is ckt diagrams;
Courtesy Lamps, Bronco Without Remote Keyless Entry
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Courtesy Lamps, F-Series/Bronco with Remote Keyless Entry
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Courtesy Lamps, F-Series/Bronco with Remote Keyless Entry (Continued)
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Courtesy Lamps, F-Series/Bronco with Remote Keyless Entry (Continued)
Check connector inside B Pillar; for corrosion, damage, etc.
Next is ckt diagrams;
Courtesy Lamps, Bronco Without Remote Keyless Entry

=======

Courtesy Lamps, F-Series/Bronco with Remote Keyless Entry
=====

Courtesy Lamps, F-Series/Bronco with Remote Keyless Entry (Continued)
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Courtesy Lamps, F-Series/Bronco with Remote Keyless Entry (Continued)