my 2009 dts will not start
I'm assuming u meant doesn't crank. When u say doesn't start, car turns over but doesn't run. If it doesn't turn over, make sure battery is fully charge. If battery is good, check battery cables for corrosion including the one to the starter. If cables are ok, check for voltage at starter solenoid, if no voltage, trace back to starter relay, if relay is not being energized, trace voltage back to ignition switch
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