Question about 2001 Chevrolet Malibu

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How do I fix a check engine light problem

Disconnect the negative pole of the battery

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Check engine lights are to be reset using an ODB II reader. You can usually have this done for free, both reading and resetting the code, at any Autozone. If Autozone is not nearby, try any parts store that DOES NOT offer mechanical services. Stores with mechanics will want to charge a diagnostic fee. Stores that only sell parts will do the reading and resetting as a free service to get your parts business. Also, knowing the code may make it easier to fix permanently as the lights usually come back on after being reset unless something was actually done to correct the problem.

Posted on Nov 27, 2014


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The engine block should be ground. Check between the poles on the battery for 12 volts. Then check between the positive pole on battery and engine block for 12 volts. If you don't get 12 volts between positive pole and engine block you may need a new ground cable or all negative connector cleaned and tightened.

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It is usually marked on the casing. +(or a red marker around the pole) is positive. If you havent removed the battery connect a bulb between one of the poles a piece of bare metal (ie engine). If the bulb lights up you're on the positive. If you have already removed the battery use a multimeter and measure voltage across the poles on the battery, if the meter gives a positive reading the red test lead is on the positve. If it gives a negative reading ie -12.35V(digital meter) the red is on negative. If you have an analogue meter(a meter using a needle) it will swing to the left when red lead is on neg.

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then remove the negative battery pole, press the brake down for 90 seconds reconnect the battery pole..

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try disconecting your negative pole off the battery, then use a 12 volt light bulb one contact, with its socket conect one wire to the battery negative and the other one to the negative cable that you disconect of the battery, if the light bulb flashes, you have an open circuit probably caused by the timer that keeps your courtesy lights on for 2 minutes, try opening and shutting all doors and check. this is done with engine off

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