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How to check if computer is bad - Cars & Trucks

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The computers in modern automobiles very rarely go bad. Simply perform a OBDII test for stored faults. If the computer is bad there will be a communication failure. Other wise read the codes. This scan should be done every 30,000 miles. Be sure to delete any stored codes after reading to stay current. this will save you from buying parts you don't need. Replacing a computer(ECU) is your last resort. Its very expensive.

Posted on May 15, 2017

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Posted on Jan 02, 2017

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