Question about 2005 Chevrolet Cobalt

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I have a 2005 chevy cobalt with a parasitic draw off the battery. i found a .75 amp constant draw through the bcm2 fuse under the hood and traced the wire to the ip fuse panel. i just need to know what the red/white wire in the top right corner in the main red screw in connector controls. its not in the two clip in bcm connectors

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Posted on Jan 02, 2017

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SOURCE: Low Beams Stay On

Also, the daytime driving lights are controlled by relay. It's possible the relay may have melted down inside and is shorted, remaining on even when primary ignition power is off. The relay runs about $15.00 to $20.00 USD and might be worth a shot to replace. Likely you can get one at a recycling yard for a dollar or two.

Posted on Feb 07, 2009

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SOURCE: 2004 Chevy Cavalier wont start after replacing fuses

A little dificult solving this without actually being there..but you may want to check for trouble codes first. Also check the junction box in the engine compartment for corrosion. Remove it from its mounting and flip over so you can see under neath. Check for any corrosion in there.

Posted on Jul 26, 2009

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SOURCE: 1999 Chevy Tahoe - replacing right side view

is the mirror being replace because glass broken just pull on mirror backing will pop off careful of heat wires /if unit being replaced harness clip is behind the access panel with 3 nuts- if connector fell down into door slowly pull up, mirror wires are only 3-4 inches long

Posted on Oct 23, 2009

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SOURCE: Main/Connector Rod bearing replacement

To do that properly you will have to pull the motor out, remove crank, check to see if you need standard or oversized bearings and do all new gaskets.

Posted on Jan 18, 2010

alicantecoli
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SOURCE: 2007 chevy equinox battery goes dead over night

also feed to alternator ,the doides have gone renew the diode pack or the alternator complete

Posted on Apr 08, 2010

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if short trace fuses if no fuses are blown test and check battery cables and connections if parasite drain then the following links will assist you
How to Find Parasitic Battery Drain How To Perform Parasitic Draw Test EricTheCarGuy How to do Parasitic Battery Drain Test

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What fuse? Fusebox is either under dash or drivers side or on side of dash on drivers side. Might be an aux fuse box under hood

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What causes my battery to drain overnight? Parasitic (or ignition key off) drain is the cumulative load produced by electrical devices, for example, emissions computers, clocks, security alarms, radio presets, etc., that operate continuously after the engine is stopped and the ignition key has been switched off. Normal parasitic loads are below 75 milliamps (.075 amps). When the parasitic load is greater than 75 milliamps (.075 amps), batteries will drain more quickly. Glove box, trunk, and under hood lights that do not automatically turn off when the door is closed or shorted diodes in alternators are the most common offenders. Cooling fans, power seat belt retractors, radios and dome lights left on, alarm systems, and electric car antennas have also caused batteries to drain overnight. Leaving your headlights on will generally discharge a fully charged car battery, with 90 minutes of Reserve Capacity (36 amp hours), within a couple of hours.

It is highly recommended, especially if you are using a sealed wet "Maintenance Free" (Ca/Ca) battery, that you allow it to thaw if frozen, fully recharge it in a well ventilated area with an external battery charger, remove the surface charge, and load tested both the battery and the charging system for latent damage from the deep discharge. You could have a damaged or bad battery. If the alternator is warm and the engine is cold, then check for a shorted diode in the alternator.

Below are some methods that are used to test the parasitic load with the engine NOT running, under hood light disconnected, all accessories switched off, and the vehicle doors closed:
  • Connect a 12-volt bulb across the positive and negative battery terminals to test the bulb and the battery. If it glows brightly, then remove the negative battery cable and connect the bulb in series between the negative battery cable terminal clamp and the negative battery terminal. If the bulb continues to glow brightly, then start removing fuses or connections to the positive battery post one-at-a-time until the offending electrical component is identified by the bulb dimming.

  • A better approach is to use a DC ammeter, for example a Fluke 175, inserted in series with the negative battery cable terminal clamp and the negative battery terminal or a clamp-on DC ammeter, like a Fluke 336 or i410 around the negative battery cable. Starting with the highest scale, determine the current load. If the load is above 75 milliamps (.075 amps) after the initial surge, then start removing fuses or connections to the positive battery post one-at-a-time until the offending electrical component is identified by the parasitic load dropping to within 75 milliamps (.075 amps).

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1 Answer

05 Chevy cobalt have no power to fuse block for fuel pump


You have no voltage at 15 amp fuel pump fuse in the under hood fuse/relay center ? There is a fuel pump relay also in same under hood fuse box. The fuel pump fuse gets power from the fuel pump relay. The ( PCM ) engine computer controls that relay, gives power or ground electronically to turn the relay on giving power to the fuel pump through the fuel pump fuse. You could have a bad relay or an anti-theft system problem . What engine does you vehicle have 2.0 L or 2.2 L the 2.0 L engine gets power differently to fuel pump .

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Fuse box location 2005 chevy cobalt


There are two locations for fuse boxes on a 2005 Cobalt. 1) is under the hood, on the driver's side, under the jump start contact. 2) is inside the center console, on the right side. The forward part of the console kick panel has a press-opening panel, which, when removed, reveals the fuse box.

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Check your trunk and dome light circuits.

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take your battery to a parts store. they will test it. It is probably shorting out inside and causing the loss. buy new battery.

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remove the positive cable from your battery then connect a test light in between the cable and the terminal of the battery. at this point it will be lit up. if you have an under hood light the bulb will need to be removed as well as the radio fuse and unplug any thing from the cigar lighter. remove the dome light fuse. if the test light is still lit up then you have a parasitic drain. the first thing i would do is remove the large red wire from the back of the alternator as a shorted field is the most common form of parasitic draw, if the test light is still on and are sure that everything is off and unplugged then start removing fuses one by one while checking if the test light is still on. once the test light goes off then you have found the circuit that is causing the draw. repair will depend on the circuit

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A stuck relay will do this.

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