My daughter's car keeps blowing the EUC fuse. I took it to the dealer and they were unable to help me solve my problem. I can't trust the car enough for her to take it back to school with her. On a couple of occassions the check engine light has come on and it looses power on the highway. Any help would be appreciated.
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Re: 2000 Accent ECU fuse
Try by unplugin the oxigen sensors, specially if this car has been in an mufler shop for catalitics or mufler repairs, sometimes they are not to carrefull and might damage an oxigen sensor, this sensor are located on the mufler pipe, and they look similr to an spark plug.
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ECU =ENGINE CONTROL UNIT.
it is the computer,the brain of the car or truck,
it runs every electrical sensor and spark plug
ignition and fuel system its what give u the codes
when something gos bad
and if the ECU is bad the car may not start
Thats the fuse for the ECU, engine control module, and is a 15amp for gas 2.0. i would locate the ECU which is under the center of the plenum in the engine compartment and disconnect the long plug. Check for green discoloration on the multipin connector. Sometimes moisture will get in there and short some of the pins together. Leave ECU unplugged and replace the fuse. If it still blows cause is between the fuse and the ECU.
The ECM1 fuse blowing usually indicates that the fuel pump wires shorted inside the tank. If you drop the tank and remove the module, you will probably find the insulation burned off the gray pump wire.
Hi had a similar problem last week with my 2000 accent took car to dealer who put it on the computer, turned out that the 'mass airflow unit' needed replacing. Very expensive part cost £182 and labour £36 (Hyundai dealer) sorry!!!!
The problem is not 100% solved. I have figured out that the problem is in the ground circut for the "Body ECU" system. The only circut effectfed is the door, ignition switch ilumination. If a ground is forced to the circut it works oK.
What I need is a diagram of the internal workings of the "body ECU". I have not yet removed it but it can be much more than a bunch of relays. By the way tell the guy with SD22 Nissan to search SD22. The sole distributor for that product is located in SanFran.