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Power options

Tiny
LOUISCESARINI
  • MEMBER
  • 1992 MERCEDES BENZ 500SEL
  • 5.0L
  • V8
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
I parked my car for approximately a year. Put in new battery. Car turns over and starts, but none of power options work windows, locks, alarm, etc.
Monday, November 28th, 2016 AT 11:35 AM

4 Replies

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Have you checked the fuses yet?
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Monday, November 28th, 2016 AT 3:55 PM
Tiny
LOUISCESARINI
  • MEMBER
  • 3 POSTS
No. I didn't know you could blow a fuse just by hooking up a new battery. But I will do that next and let you know.

Thanks
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Tuesday, November 29th, 2016 AT 5:32 PM
Tiny
LOUISCESARINI
  • MEMBER
  • 3 POSTS
The fuses are all good. At first I said the car would start, now it turns over but won't start and I still have no alarm, power windows, locks, seats, etc. There must be some way to reset the system.
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Wednesday, November 30th, 2016 AT 9:34 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
You didn't happen to hook up the battery backwards for a second did you? If not there must be a main relay that got burnt up, there is a main power supply that is not working. I tried looking up the wiring diagram but doesn't seem to have the info we need. Use a test light and start probing around.

Please let us know happens so it will help others.

Best, Ken
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Thursday, December 1st, 2016 AT 11:40 AM

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