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Fuse #13 in engine compartment keeps blowing

Tiny
AGEL
  • MEMBER
  • 2000 MITSUBISHI ECLIPSE
  • 4 CYL
  • 2WD
  • MANUAL
  • 142,854 MILES
I was driving and it just turn off. I check the fuses I found number thirteen blown. I replaced the fuse and it runs for a little bit then it turns off again.
Thursday, February 22nd, 2018 AT 4:35 PM

30 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,256 POSTS
Hello,

The #13 fuse goes to the cooling fans engine controls and air conditioner. The first thing I would check is the cooling fan, with the engine off open the hood and see if you can rotate the cooling fan it should turn freely.

Check out the diagrams (Below)

Please let us know what you find.

Cheers, Ken
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Wednesday, February 28th, 2018 AT 10:06 AM
Tiny
AGEL
  • MEMBER
  • 40 POSTS
Good evening I check the fan and its ok I disconnected and put a new fuse try to star the car and it blew up the fuse again. I try connect the scanner to diagnose the car but it shows an error. Could you send me images of were the ecm is located please?
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Wednesday, February 28th, 2018 AT 2:12 PM
Tiny
KEN L
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  • 47,256 POSTS
Hello,

It looks like the ECM is under the hood on the drivers side here is a diagrams of its location (below). I would test the ignition coils and fuel injectors.

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

and

https://www.2carpros.com/articles/how-to-test-an-ignition-system

These can build up high resistance causing the fuse to blow.

Check out the diagrams (Below)

Please let us know what happens.

Cheers, Ken
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Thursday, March 1st, 2018 AT 11:35 AM
Tiny
AGEL
  • MEMBER
  • 40 POSTS
I still cant find what keeps blowin the fuse
i already check alternator, starter, fan, ignition, switch, coils elictrical conetor but no luck finding the problem
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Friday, March 2nd, 2018 AT 9:20 AM
Tiny
KEN L
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I would disconnect all oxygen sensors, you can drive it without them to test.
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Friday, March 2nd, 2018 AT 10:18 AM
Tiny
AGEL
  • MEMBER
  • 40 POSTS
Car wont star it cranks but wont star fuse n#13 keeps blowing up
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Friday, March 2nd, 2018 AT 10:20 AM
Tiny
AGEL
  • MEMBER
  • 40 POSTS
It wont even let me scan the car
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Friday, March 2nd, 2018 AT 10:21 AM
Tiny
CARADIODOC
  • MECHANIC
  • 33,864 POSTS
A simple trick to finding a short is to replace the blown fuse with a pair of spade terminals, then use small jumper wires to connect them to a 12 volt light bulb. A brake light bulb works well. When the circuit is live and the short is present, the bulb will be full brightness and hot so be sure it's not laying on the carpet or against a plastic door panel. Now you can unplug electrical connectors and move things around to see what makes the short go away. When it does, the bulb will get dim or go out.
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Friday, March 2nd, 2018 AT 12:19 PM
Tiny
KEN L
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That fuse feeds the ignition switch can you unplug it and see if it happens?
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Friday, March 2nd, 2018 AT 2:03 PM
Tiny
AGEL
  • MEMBER
  • 40 POSTS
It blows the fuse when I turn the gniton switch to star the car I trya new switch butstill does the same
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Saturday, March 3rd, 2018 AT 9:57 AM
Tiny
AGEL
  • MEMBER
  • 40 POSTS
How could I check if the ecm is bad
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Saturday, March 3rd, 2018 AT 9:58 AM
Tiny
KEN L
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You cant only a electronic repair shop can. If you unplug the ECU does it pop the fuse?
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Saturday, March 3rd, 2018 AT 1:26 PM
Tiny
AGEL
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  • 40 POSTS
No it doesnt pop the fuse without the ecu disconected
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Saturday, March 3rd, 2018 AT 3:46 PM
Tiny
KEN L
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All right getting warmer. Plug the ECU back in and disconnect all oxygen sensors and retry the test.
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Monday, March 5th, 2018 AT 10:24 AM
Tiny
AGEL
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Could any one send me wiring diagrams for the ecm 2000 eclipse
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Tuesday, March 6th, 2018 AT 10:26 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Yep got you covered, here are the full wiring diagrams for the engine and a guider to help you do some testing.

https://www.2carpros.com/articles/how-to-check-wiring

Did you try the oxygen sensors?

Cheers, Ken
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Tuesday, March 6th, 2018 AT 12:58 PM
Tiny
AGEL
  • MEMBER
  • 40 POSTS
I diconected the two oxigen censors and it keeps blowing the fuse
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Thursday, March 8th, 2018 AT 3:46 PM
Tiny
KEN L
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Ignition coil, fuel injectors are next. Please disconnected and see if the fuse still blows
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Friday, March 9th, 2018 AT 12:48 PM
Tiny
AGEL
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  • 40 POSTS
I already try that and it kept blowing the fuse
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Friday, March 9th, 2018 AT 4:56 PM
Tiny
KEN L
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Test all computer wiring to ground if everything checks out replace the ECU.
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Friday, March 9th, 2018 AT 6:03 PM

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