would reversing battery cables blow the ecu on a 2001 concorde lxi 3.2
new battery new alternator but running on battery only is it likerly the ecu after cable switch sparks heated wires
You reversed the battery cables and had sparks? You might have blown a fuse. Be more careful.
Hopefully the 50¢ fuse blew and protected the $300 PCM (ECU) from damage. But if the fuses are good, then, yes, the PCM was most likely fried. HTH. -Jim
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