would reversing battery cables blow the ecu on a 2001 concorde lxi 3.2

Asked by Nov 19, 2015 at 06:49 PM about the 2001 Chrysler Concorde LXi

Question type: Maintenance & Repair

new battery new alternator but running on battery only  is it likerly the ecu   after cable switch sparks heated wires

2 Answers

251,235

You reversed the battery cables and had sparks? You might have blown a fuse. Be more careful.

1 of 1 people found this helpful.
69,405

Hopefully the 50ยข 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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