Parasitic battery drain

2004 CHEVROLET BLAZER
110,000 MILES • 4WD
Avatar
DON_W33
  • MEMBER
  • 1 POST
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?

Jun 28, 2019 at 9:29 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
ASEMASTER6371
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 52,796 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
Jun 28, 2019 at 11:03 AM
Advertisement
Avatar
STEVE W.
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 15,146 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.
Jun 28, 2019 at 12:16 PM