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Parasitic battery drain

Tiny
DON_W33
  • MEMBER
  • 2004 CHEVROLET BLAZER
  • 4WD
  • 110,000 MILES
Looking for causes of parasitic battery drain. Fuse box has symbols for each fuse, but what do they mean? Examples of those not obvious - HOLPW/W LDLEV HTDMIR.
The last one is some mirror, but which one?
Haynes manual shows a few if you search all the wiring diagrams.

Question - what do the fuse box symbols mean?

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Friday, June 28th, 2019 AT 9:29 AM

2 Replies

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

Can you send me a picture of the cover so I can tell you each one?

I attached a guide for doing a parasitic draw for the car.

https://www.2carpros.com/articles/car-battery-dead-overnight

Roy
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Friday, June 28th, 2019 AT 11:03 AM
Tiny
STEVE W.
  • MECHANIC
  • 13,443 POSTS
The ones you ask about are -
HOLPW/W = Headlight wiper/washer
LDLEV = Electronic Load Leveling
HTDMIR. = Heated Mirror.

Two common issues for a draw are the instrument cluster and the radio.
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Friday, June 28th, 2019 AT 12:16 PM

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