What circuits are shown in Fig. 10.143 of the 1979 Bronco wiring diagram?

Rear lighting circuits: L.H. and R.H. backup lamps, L.H. and R.H. license lamps, the R.H. stop/park & turn-signal lamp, the R.H. rear side marker lamp, and the marker lamps relay (labeled 'part not req'd for Bronco').

What wire feeds the electric brake controller on the 1979 Bronco?

The diagram shows three wires to the electric brake controller (customer use): 37 BK-Y, 22 BL-BK, and 810 R-BK, routed through connector C-1101 and connector C-1102.

Where do the rear lamps ground on the 1979 Bronco?

The rear lamps ground through circuit 57 BK, joined at splice S-1205 and terminating at ground G-1002. The engine compartment lamp grounds through 57 BK at G-1006.

What relay controls the trailer lights in Fig. 10.144?

The trailer exterior lamps relay, connected through connectors C-1108 and C-1112, fed by circuits 54 GR-Y, 576 BL, 37 BK-Y and 285 BR.

Which power distribution splices are referenced in the trailer wiring diagram?

Splice S-1102 (37 BK-Y), splice S-1103 (54 GR-Y), and splice S-1101 (22 BL-BK).

Home/ Registry/ Ford/ Bronco/ 1978-1979/ “None”/ Photo supermotors.net/registry/media/517192

1979 Ford Bronco Wiring Diagram - Rear Lamps, Trailer & Brake Controller Wiring

1978-1979 Ford Bronco Wiring Diagram (Haynes Figs. 10.143-10.144)

‹ ›

Haynes Bronco wiring schematics (continued) covering instrument and accessory circuits with connector and wire-color callouts.

AI caption May 2007 · Photo 105 of 126

This is page 268 of a Haynes manual showing two continuation pages of the 1979 Ford Bronco wiring diagram (Fig. 10.143 and Fig. 10.144). The top diagram (Fig. 10.143) covers rear exterior lighting circuits: left and right backup lamps, left and right license lamps, the right-hand stop/park/turn-signal lamp, and the right-hand rear side marker lamp, along with the marker lamps relay (noted as 'part not req'd for Bronco'). Key wire circuits shown include 526 BK-W, 283 Y-BK, 282 GR, 285 BR, 576 BL, 140 BK-R, 207 BK, and the 57 BK ground circuit terminating at ground G-1002. Connectors and splices identified include C-1208, C-1204, C-1209, C-1210, C-908, C-909, C-910, S-803, S-1203, S-1204, and S-1205. The bottom diagram (Fig. 10.144) covers trailer wiring and power distribution: splices S-1101, S-1102, and S-1103, feeds to an electric brake controller (customer use) via wires 37 BK-Y, 22 BL-BK, and 810 R-BK, the trailer exterior lamps relay, and the engine compartment lamp grounded at G-1006 through 57 BK. Connectors C-1101, C-1102, C-1108, and C-1112 are shown. Wire color codes (BK-black, BR-brown, GR-green, BL-blue, Y-yellow, R-red, W-white combinations) accompany each circuit number.

Is this accurate? Sign in to help verify it.

Frequently asked questions

What circuits are shown in Fig. 10.143 of the 1979 Bronco wiring diagram?: Rear lighting circuits: L.H. and R.H. backup lamps, L.H. and R.H. license lamps, the R.H. stop/park & turn-signal lamp, the R.H. rear side marker lamp, and the marker lamps relay (labeled 'part not req'd for Bronco').
What wire feeds the electric brake controller on the 1979 Bronco?: The diagram shows three wires to the electric brake controller (customer use): 37 BK-Y, 22 BL-BK, and 810 R-BK, routed through connector C-1101 and connector C-1102.
Where do the rear lamps ground on the 1979 Bronco?: The rear lamps ground through circuit 57 BK, joined at splice S-1205 and terminating at ground G-1002. The engine compartment lamp grounds through 57 BK at G-1006.
What relay controls the trailer lights in Fig. 10.144?: The trailer exterior lamps relay, connected through connectors C-1108 and C-1112, fed by circuits 54 GR-Y, 576 BL, 37 BK-Y and 285 BR.
Which power distribution splices are referenced in the trailer wiring diagram?: Splice S-1102 (37 BK-Y), splice S-1103 (54 GR-Y), and splice S-1101 (22 BL-BK).