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2011 Challenger srt8 392 slow battery drain

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2011 srt8 challenger
#1
I got a 2011 challenger srt8/392 witht he following problem:
if parked for 3-5 days battery goes empty, got car to dealer and they said the window switches (go up and down when door handle is activated to allow to close the door properly)
malfunction. They replaced switches, still got same problems. Dealer says replace door handles next......
Anyone who diagnosed this issue, fixes, recommendations..?
Thank you!!
 

ACMAVRO

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#2
You could check if you have powered seat that switch isn’t stuck in one of the positions. That was the mysterious thing causing my battery to drain once.
 
OP
T
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Thread Starter #3
You could check if you have powered seat that switch isn’t stuck in one of the positions. That was the mysterious thing causing my battery to drain once.
Thank you, I tried, but does not seem to be stuck
 

ChargerChallenger

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#4
Take it up to @Jimmy N. he will make it right or modify it😁
 

Jimmy N.

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#5
Just pull all the fuses every night.
And don't forget to reinsert them before driving.
 
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#6
I got a 2011 challenger srt8/392 witht he following problem:
if parked for 3-5 days battery goes empty, got car to dealer and they said the window switches (go up and down when door handle is activated to allow to close the door properly)
malfunction. They replaced switches, still got same problems. Dealer says replace door handles next......
Anyone who diagnosed this issue, fixes, recommendations..?
Thank you!!
Hi Taro,
We sincerely regret to hear of your trouble. If we can be of any additional assistance as you are working with your dealer, feel free to send us a private message. We'd be more than happy to help.

Rob
Dodge Cares
 

ChargerChallenger

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#7
Something to think about is rat infestation being a rat could have gnawed through a portion of a wire that’s now has a small short that’s creating this as well. My dad Toyota 2019 model just had his engine wiring eating thru. My GT500 had some wiring eaten as well and caught it just in time. Just ideas and or just pull certain fuses and start narrowing it down. 🤞
 
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#8
Do you have Trinity tuner or other device plugged into the OBDII port? How about anything plugged into the always on cigar lighter outlet or USB ports? Also the dealer should not be guessing what the drain is, they should track it down. 3-5 days for a dead battery is a current drain that should be fairly easy to isolate.
 

Jimmy N.

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#9
Do you have Trinity tuner or other device plugged into the OBDII port?
Good point. I learned pretty quickly not to leave the MM3 monitor plugged in on my Ram.
 

Magnified

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#10
Someone working on the car may have nicked a power wire that is now trickle draining the battery. Had a MB S500 have that happen one a freaking rotor and pad swap. I mean WTF guys. I just don't have the time to even begin to do that stuff myself and I can't stand over them like a kindergarten teacher. Stereo work done on the car or like that?
 

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