Cross connected jumper cables. Car turns but willl not start.
SOURCE: 2009 corolla hooked up jumper cable backwards, car won't start
TAKE OF BOTH CABLES AND GROUND THEM TOGETHER FOR 30 OR SO MINUTES, THIS WILL RESET THE CARS MEMORY, TEST VOLTAGE ON BATTERY WITH VOLT METER & IF IT IS BELOW 12.31V THEN CHARGE THE BATTERY , ONCE BATTERY CHARGED HOOK UP BATTERY LEADS (TO RIGHT TERMINALS) & ATTEMPT TO START CAR, IF ALL YOU GET IS A CLICK THEN LOCATE THE STARTER MOTOR & GIVE IT A FIRM WHACK WITH A HAMMER (SERIOUSLY) THIS WILL FREE UP THE STARTER & WILL ALLOW THE CAR TO CRANK
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