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What does fusible shortage affect - Cars & Trucks

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John

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A fusible link is a short piece of insulated low-voltage cable within an automotive wiring harness that is designed to protect the harness in applications where a fuse is unsuitable. In an extreme current overload situation, the conductor within the link is melted while the ensuing flame and spark is contained within the link's insulation.

Fusible links are not rated in amps like fuses because each installation is unique and designed to meet specific circuit protection requirements.

The automotive service industry recommends using the same gauge and length as the blown fusible link after the cause of failure is corrected.

Typically, a given harness segment is protected by a fusible link that is four gauge numbers smaller. A 14-gauge wire would be protected by an 18-gauge fusible link. A 6-gauge wire would be protected by a 10-gauge link, and so on. Odd number wire gauge sizes like 19, 15, 13 and 11 are counted when sizing a link. The length of a fusible link should not exceed 9".

In general, a fusible link should never be used to replace an automotive fuse unless authorized by a vehicle factory service bulletin. Likewise, never replace a fusible link with an automotive fuse.

Fusible links are used in most starting circuit applications. For more technical info on fusible links, visit www.sae.org

Posted on Dec 01, 2013

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Where is fusible link located on a 2004 Hyndai Elantra?


There are nine fusible links in the engine compartment relay and fuse box: 120A FUSIBLE LINK (BATT), 30A FUSIBLE LINK (ABS 1), 30A FUSIBLE LINK (ABS 2). 30A FUSIBLE LINK (BLOWER), 40A FUSIBLE LINK (IGN), 20A FUSIBLE LINK (ECU), 50A FUSIBLE LINK(BAT), 20A FUSIBLE LINK (RAD), and 20A FUSIBLE LINK (COND). The passenger compartment junction block contains the 30A FUSIBLE LINK (PWDW)

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1998 Cavalier--I have no brake lights flashers,radio, AC/heater,or head lights. There are dash lights and the car will crank but not turn over. No blown fuses, changed all the relay fuses.


Check the starter connections for a corroded/blown fusible link.Pull on the wires attached there and if one pulls apart easily,it's defective.

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If you are mechanically inclined, check for power at the starter when turning key to start. Where is your fusible link attached ? Try by passing starter solenoid, if engine turns over, you may have a bad starter.

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u got a shortage some were u r gonna he to wire them into the other brake lights its pretty easy to do and it wont affect the car in any way try that

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I need a 1988 honda prelude under hood fuse diaphagram


The closest I got to a diagram was this, but it doesn't have the legend for each maxi fuse under the hood: REPLACEMENT
  1. Remove the fuse and relay box cover.
  2. Inspect the fusible links to determine which is faulty.
  3. Unplug and discard the fusible link. Fig. 1: The engine compartment relay box contains the maxi-fuses 93136p69.jpg

  4. Inspect the box terminals and clean if corroded. If any terminals are damaged, replace the terminals.
  5. Plug in a new fusible link of the same amperage rating. WARNING
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  6. Check for proper operation of the affected circuit(s).
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1 Answer

Have a 1990 bmw 735i inline 6 and the poles got reversed when someone was jumping my car and now the electrical is acting strangely as well as the battery seems to no be holding a charge. wondering if the...


The ECU would be another place to look. This is really sad and I can see you could spend a lot of money chasing a solution. My suggestion is, spend the money once, go to an Auto Electrician and get them to provide the answer which should be pretty quick.

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Make sure to check all fuses under the hood and inside the car. If there was a short then a fuse, fuses or fusible links is shot. Check the big fuses or circuit breakers. Remove them, one at a time and check for continuity with an ohmeter; you can also touch one side to the positve battery pole and test the other side for power with the test light connected to ground. Let me know what you come up with.

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Check the 120amp Alternator Fusible link#13 (for 2002 model) located in the fusible link block. (Note: a fusible link is a properly sized piece of wire that is designed to provide major protection when a short occurs) as regular fuses provide minor issue protection.

Check the 5amp ALT-S fuse as this directly affects charging.

Lastly check the 10amp IG2 fuse.

You may find that you have now have a spare alternator (your orginal that was ok) OR You can always sell it on ebay or craigslist.

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1 Answer

Your experience?


first of all you have to find out what is all on that circuit; I do not recommend you replacing this with a fuse higher then called for!
do you have an amp or after market radio? if you do then disconnect this and see if the fuse doesn't blow

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1 Answer

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Try checking the fusible links in the wiring harness near the starter. My 91 had a similar problem where I lost my radio and my headlights. Turned out those fusible links were all corroded. replaced the bad ones (winter time- pain) and all was well again.

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