1988 Ford Bronco Blower Motor Wiring Diagram - Fan Switch & Resistor Wire Colors

This is a scanned portion of a factory-style wiring diagram for the blower motor / HVAC blower circuit, uploaded to a 1988 Ford Bronco gallery. It shows the blower motor fed by a BRN-ORG wire (routed through 'FUSE #9') and an ORG-BLK wire running to the blower switch. The blower switch connector is detailed with five pins: pin 3 BLK (ground), pin 5 ORG-BLK (HI), pin 2 LT GRN-WHT, pin 4 YEL-RED, and pin 1 RED-ORG, plus an OFF position. Below the switch, the blower resistors with thermal limiter (block C) are shown with RED-ORG, YEL-RED, LT GRN-WHT, and ORG-BLK leads for the various fan speeds. The A/C switch is shown with BRN-ORG and LT GRN-PPL wires and an ON indicator, and an electronic control assembly at pin #43 is noted with a (4.9L) engine callout and GRN-PPL wire. A gear select switch (RED-WHT wire) and shift motor assembly appear at the top edge. The uploader has hand-annotated the diagram in red ('New 15 amp circuit') with a drawn-in fuse symbol on the BRN-ORG blower feed, documenting an added 15-amp inline fuse modification to the blower motor power wire.