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I need help please. I changed the battery in my 2009 challenger and now for some reason the blinkers, horn, wipers don't work and I have the stability control lights are on. What did I do wrong. Everything worked before replacing the factory battery.
 

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This may work. The PCM is corrupt. Remove the battery cables again. Get them away from the battery and hold them together for at least 30 seconds. This will discharge all the memory capacitors in the PCM. Put the battery cables back on and see if the car is back to normal.
-John
 

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The Old Guy is right on point!

My 2009 (that I've owned for 11 years) had similar issues, and I changed the Battery twice, then changed the Alternator, then the ECU, only to find out the HARNESS was DONE!

There are very few options for replacing the 2009 Challenger Harness, and I actually had to have it Re-Strung (recreated). I couldn't find a replacement.

Maybe, you'll be able to a replacement in your neck-of-the-woods.

Good Luck
 
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