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No power to all the fuses and relays

Tiny
VINNYMAN
  • MEMBER
  • 1995 LEXUS SC 300
  • 3.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
Battery died a few nights ago, jumped it and it was running good. Shut it off to try it on its own. Nothing. No lights on dash, radio, headlights, door locks trunk, alarm light. Only thing on is the door ajar indicator and ding that keys in and doors open. Started checking fuses under hood. Nothing alarming there. Checked inside fuse panel and no power to all the fuses and relays. Where do I start?
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Sunday, March 31st, 2019 AT 10:38 AM

5 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

You need to start with a good battery that has at least 12.4 volts. You need to either charge it or replace it.

Then use a voltmeter to check the voltage at the battery with the engine running.

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Roy
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Sunday, March 31st, 2019 AT 1:59 PM
Tiny
VINNYMAN
  • MEMBER
  • 3 POSTS
The battery has been tested, still good battery, with good charge. Even with jumper cables hooked up to car problem above still occurs. Tells me it's not the battery. Please reread original post.
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Sunday, March 31st, 2019 AT 4:51 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
What is the battery voltage exactly?

Roy
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Sunday, March 31st, 2019 AT 5:04 PM
Tiny
VINNYMAN
  • MEMBER
  • 3 POSTS
Car off 12.6.
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Sunday, March 31st, 2019 AT 6:09 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay, good.

Now, what is the battery voltage at the fuse boxes?

Roy
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Sunday, March 31st, 2019 AT 6:36 PM

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