The Top DSM Community on the Web

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. Log in to remove most ads.

Please Support Kiggly Racing
Please Support ExtremePSI

Death by millivolts - Parasitic drain!

This site may earn a commission from merchant
affiliate links, including eBay, Amazon, and others.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

bpk1337

15+ Year Contributor
116
5
Oct 28, 2008
Phoenix, Arizona
My battery dies in less than 7 days give or take so I put my meter in series to the battery to see the current draw and started pulling fuses. Narrowed it down to the list below. Even removed all of the fuses, and measured the current drains independently of the other parasitic circuits intact.

30 mA - Headlamp fuse (under hood) ** ??
30 mA - Horn fuse (under hood) ** ??
20 mA - Aftermarket alarm
10 mA - Aftermarket gauges
20 mA - Room lamp fuse (under hood)
10 mA - Factory Anti-theft fuse (kick panel) -Removed-

Total = 120 mA

From my research, the current from the room lamp (ecu memory), and aftermarket gauges (color selection memory) are normal. I went ahead and deleted the factory anti-theft fuse saving me 10mA.

Does anyone know what would cause a draw from the headlamp & horn circuits? If I could get to the bottom of these two it would save me 60 mA.

Extra nerd info:
*I should mention that I had a TK103B GPS tracker that was draining 100 mA no matter what mode I put it in. (Sleep or otherwise) I'm replacing this unit with a TK104. So actual total was 220mA, but I have disconnected this for now since it was the largest contributor to my battery drain.
 
Well 50ma is what honda says is the max you can have. Are you performing this correctly? All doors need to be shut keys out of ignition. Manually latch your hood latch with a screwdriver. Lock all doors and wait 15 mins for control units to shutdown. Once you find the circuit(s) with draw you need to start unplugging components. Control units are usually the prob
 
Yep, clamped my doors closed so I could get in and out and latched my hatch. Removing the fuses above I was about to get to 0 amps of drain but can't figure out why the horn and headlamp circuits are drawing 60mA. Any other ideas?
 
Support Vendors who Support the DSM Community
Boosted Fabrication ECM Tuning ExtremePSI Fuel Injector Clinic Innovation Products Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications MyMitsubishiStore.com RixRacing RockAuto RTM Racing STM Tuned

Latest posts

Build Thread Updates

Vendor Updates

Latest Classifieds

Back
Top