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1998 S10 Security losing memory - 1999 Chevrolet S-10 Pickup

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If you are referring to the ECU loosing its stored memories, you may want to check the terminals of your battery if they are loose. The ECU needs constant voltage to keep its data. Loose terminals while your car is off can make the ECU go on reset without the driver noticing it. If the terminals are ok, have the power wire or ground of the ECU traced for loose or open connections.

Posted on Jul 30, 2009


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