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1994 Ford Bronco C103 In-Line Connector Pinout - 4.9L 5.0L 5.8L 7.5L 7.3L
Reference · 1992-1996 BroncoAll 411 wiring diagrams
Wiring diagram of Ford C103 in-line connector showing female/male views with wire color codes for 4.9L-7.5L engines.
Part of 1992-1996 Ford Bronco Wiring Diagrams
This document is a wiring connector pinout diagram for the C103 in-line connector, applicable to 4.9L, 5.0L, 5.8L, 7.5L, and 7.3L engines, labeled for a 1994 Ford Bronco. It shows both halves of the 16-pin in-line connector: C103F (female) and C103M (male), each drawn face-on with numbered pin positions and callout lines identifying the circuit number and wire color code at each pin. Circuits shown include 33 (W/PK), 32 (R/LB), 463 (R/W), 923 (O/BK), 89 (O), 970 (DG/W), 74 (GY/LB), A (BK), 784 (LB/BK), 210 (LB), 140 (BK/PK), 298 (P/O), 359 (GY/R), 199 (LB/Y), 480 (P/Y), 915 (P/O), 315 (P/O), 57 (BK), 924 (BR/O), and 766 (BK/LG). A footnote indicates that circuits marked with an asterisk (89 and 74) apply only to vehicles over 8500 lb GVW. A reader can use this diagram to identify which wire (by circuit number and color) lands on each cavity of the C103 connector when diagnosing or repairing the engine/body harness junction. Note the female (C103F) pin numbering is mirrored relative to the male (C103M) side, as is typical for mating connectors.
This document covers 1994, which may differ from this 1996 Ford Bronco.
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Frequently asked questions
- What engines does the C103 in-line connector diagram cover?
- The header states it applies to the 4.9L, 5.0L, 5.8L, 7.5L, and 7.3L engines, and the diagram is labeled 94 Bronco.
- How many pins does the C103 connector have?
- Both connector halves (C103F female and C103M male) are 16-pin in-line connectors, with pins numbered 1 through 16 in four rows of four.
- What do the asterisks next to circuits 89 and 74 mean?
- The footnote states '* OVER 8500# GVW', meaning circuits *89 (O) and *74 (GY/LB) apply only to vehicles over 8500 lb gross vehicle weight.
- What wire is on pin 12 of C103M?
- Pin 12 of the C103M in-line connector is circuit 970 with a dark green/white (DG/W) wire.
- What circuit uses the black/pink (BK/PK) wire at C103?
- Circuit 140 (BK/PK) appears at the top of both the C103F and C103M connector diagrams.
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