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FORD BRONCO
-> ELECTRICAL; EEC/PCM, Self-Test, wiring diagrams...
-> Fusible Link
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WELCOME to MIESK5's BIG BRONCO LINKS - We now have over 26,000 LINKs!
This is a Ford Bronco, Truck & Van Technical & Parts LINKS site developed by the MIESK5 Family & is not affiliated with the Ford Motor Co. in any manner.
Although we initially developed this site for 78-96 Big Broncos, information in many Links also applies to F, E Series & Cars. UPDATE; all Links via web.archive may be down; Copy orig. URL & go to http://replay.waybackmachine.org/ to search for the new archived copy
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"...there is a fusible link between the starter relay and alternator..." (under license from Delmar Publishers, comb of Chilton/Nichols/Delmar & Haynes); some may be incorrect, as reported by Seabronc, thanks Seabronc! NEW SITE URL!!! MUST REGISTER TO VIEW; select year, make, model, engine size and go to appropriate section
Source: by Chilton via AutoZone
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A, B & J Location Diagram, Engine Area in a 92 5.0 & 5.8
Source: by Ford via Jem270 at Supermotors.net
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A, F, G, J, L, M, N, P, W & Y Location in Wiring Diagram in an 89; Fusible Link A-Brown 18ga to Rear Window Defroster; W-Blue 20g to Fuel Pump Relay; N-Blue 20g to EEC Power Relay; F-Blue 20ga to Trailer; Y-Blue 20ga to N.C.; L-Brown 18ga to ?; M-Brown 18ga to ?; G-Blue 20g to Exterior Lamps, Trailer; P-Blue 20ga to ?; & J-Green 14ga to Alternator
Source: by Seabronc (Rosie, Fred W) at Ford Bronco Zone Forums
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A, F, G, L, M, N, P & W Location in Engine Bay Diagram in a 90 4.9L Page 1
Source: by Seattle FSB (SeattleFSB) at SuperMotors.net
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A, F, G, L, M, N, P & W Location in Engine Bay Diagram in a 90 5.0 & 5.8 Page 2
Source: by Seattle FSB (SeattleFSB) at SuperMotors.net
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A, F, I, J, L, N, M, P Location in a 92 4.9
Source: by Ford via chiltonlibrary.com
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A, J, L, M, G, W, N, G & P Location in Wiring Diagram in a 90; Fusible Link A-Brown 18ga to Rear Window Defroster; L-Brown 18ga to C202; M-Blue 20g to C202; G-Blue 20g to Exterior Lamps; W-Blue 20g to Fuel Pump Relay; N-Blue 20g to EEC Power Relay; G-Blue 20ga to Trailer Adapter; P-Blue 20ga to Splice 115 to Connector 202 & Exterior Lamps & Daytime Running Lamp (DRL); J-Green 14ga to Alternator
Source: by Seattle FSB (SeattleFSB) at SuperMotors.net
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B Location in Wiring Diagram in an 86, Fusible Link B to the fuel pump relay & Link Green, 14 gauge from battery to alternator
Source: by Xris at SuperMotors.net
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B, D, E, F, G, H, I & N Location in Wiring Diagram in an 83; I-Orange to?, H-Green to Link B-Yellow to Trailer, G-Green to Aux Battery Relay, F-Red to Trailer, E-Orange to Splice S220, N-Red to Start/Ignition (EEC), D-to Voltage Regulator A & Alternator S
Source: by Seabronc (Rosie, Fred W) at Ford Bronco Zone Forums
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Bad Fusible Link pic & depiction; "...most fusible links have melted/charred insulation when they burn out..."
Source: by miesk5 at FSB
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D & M Location in Wiring Diagram for a 90; Fusible Link D, Blue, 20 gauge from EEC relay to TFI ignition module; Fusible Link M, Brown, 18 gauge from starter relay to ignition switch
Source: by SeattleFSB (Seattle FSB) at SuperMotors.net
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F, G, J, L, M, P Location in Engine Bay Diagram in a 90
Source: by Seattle FSB (SeattleFSB) at SuperMotors.net
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Fire Possibility pics; "...We thought we’d show you what a fusible link does while it is “protecting” your vehicle. Just imagine what happens when there are gas fumes, fresh paint or a shop rag nearby! Ron Francis has never used them andnever will..."
Source: by Ron Francis via Ryan M (Fireguy50) at fordfuelinjection.com
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J Location in Wiring Diagram in 92-95 Bronco & F Series; Link J (12 gauge, Gray from Battery to Alternator)
Source: by Steve83 (Steve, That dirty old truck) at SuperMotors.net
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Location in Wiring Diagram for 84 Bronco & F-Series; "...Similar to 80-91 Bronco & F-Series..."; from Starter Relay
Source: by Steve83 (Steve, That dirty old truck) at SuperMotors.net
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Location in Wiring Diagram in a 78; from ignition switch to starter relay; and alternator to battery; in Haynes wiring diagram
Source: by Mike S (Broncster, BRONKSTER) at SuperMotors.net
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Location in Wiring Diagrams in 78 Bronco & 76-78 F Series; Ignition Switch, Distributor, Duraspark, C6 Neutral Safety Switch, Windshield Washer & Washer, Starter & Relay, Battery, Alternator, Horn & Relay, etc.
Source: by Blue79 at photobucket via 7879blueovalbronco.com
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Location in Wiring Diagrams in Electrical and Vacuum Troubleshooting Manual (EVTM) Partial, (Bronco similar for many diagrams), F 150 for 86, 89, 91 & 95; EEC, Start/Ignition, EFI/Fuel System, Emissions, E4OD, AOD/C6 (+ clutch interlock switch), etc.
Source: by Ford via Ryan M (Fireguy50) at fordfuelinjection.com
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Location pic at Starter Relay in 92-96
Source: by Steve83 (Steve, That dirty old truck) at SuperMotors.net
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Location pics (two) in an 86 (scroll down)
Source: by Chris B (Blue, bronco boy) at telus.net
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Location pics in an 85 & 89 (between the starter relay and alternator)"...the first two pics are of an 89 5.0. because of the loom i wasnt able to trace the wires...The second pic is at the starter relay to show you a fusible link wire (the green wire in my fingers you can see at the eyelet there is a black plastic block). the third pic is of my 85. i think that big block is another style fusible link ford used on older stuff (but im not sure)..."
Source: by shift1313 (Matt) at Ford Bronco Zone Forums
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Location pics in an 88
Source: by mrwp819300 at SuperMotors.net
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Locations in 87-88 F-series w/ 5.0, 5.8 or 7.5 & 87-88 Bronco w/ 5.0 or 5.8; "... the power feed for the ECM and ignition comes through four separate fusible links. The power for the ECM and the EEC power relay comes from fusible link N which has a YELLOW wire coming from the link into the EEC power relay. In 1987 and 1988 only, there is a second fusible link (Z)on the other side of the EEC power relay that extends to the ECM and many of the solenoids under the hood. The link comes out from the EEC power relay with a RED wire. Fusible link D has a WHITE/LIGHT BLUE wire that runs to the ignition coil. Fusible link M has a YELLOW wire that runs to the fuel pump relay. Other model years and engines are different and this information may not be accurate for your truck..."
Source: by greystreak92 (Joe B) at fte
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pics, Ford
Source: by Sherco Auto Supply
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Repair & Color/ Gauge sizes; "... Fusible link wire is normal wire with special insulation designed to contain the heat, spark, and melted metal when the wire burns from excessive current draw. Fusible link wire is not rated in Amperes since its characteristics are less-obvious, but it is typically 4 gauges (AWG) smaller (higher number) than the circuit it protects. Although many vehicles now use MEGA or MAXI fuses where older vehicles used fusible link wire, replacing older fusible links with fuses is not recommended unless the rest of the wiring is upgraded to match the newer arrangement. Never replace a fuse with fusible link wire. In an emergency, smaller-gauge wire may be temporarily substituted for fusible link wire until an appropriate repair can be made; Orange - 22ga. - 0.35mm; Gray - 20ga. - 0.5mm;
Blue - - - 18ga. - 0.8mm; Black - 16ga. - 1.0mm;
Gray - 14ga. - 2.0mm; Blue - 12ga. - 3.0mm;
Orange - 10ga. - 5.0mm; Black - 8ga. - 8.0mm..."
Source: by Steve83 (Steve, That dirty old truck) at SuperMotors.net
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S Location in Wiring Diagram in an 86 5.0; Fusible Link S, Blue, 20 gauge to the fuel pump relay
Source: by Ryan M (FireGuy50) at fordfuelinjection.com
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Symbols in Wiring Diagrams
Source: by Steve83 (Steve, That dirty old truck) at SuperMotors.net
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T Location in Wiring Diagram in an 83; Miesk5 NOTE; from Starter Relay
Source: by Seabronc (Rosie, Fred W) at Ford Bronco Zone Forums
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Wiring Diagram in an 84
Source: by toddcomputer.com
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Wiring Diagram in an 84 (diagram #4)
Source: by toddcomputer.com
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Z Location in Wiring Diagram in an 87; Fusible Link Z, Red, 18 Gauge to the fuel pump relay
Source: by Vincent C at autorepair.about.com
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