Parasitic Draw Question.

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

TwiztidFate

TYF Newbie
Joined
Nov 6, 2024
Posts
2
Reaction score
0
Good evening everyone. Google has been no help here. Let me tell you what's going on, and what I've discovered.
I bought a 2002 Z71 about a year ago. Drive it damn near daily, then let it sit for about a month. Hopped in and it wouldn't start. No biggie. Jumped it and it was starting daily for about 5 days, then stopped cranking on its own. I've had the red top battery charged and checked, it's good.
I a full charge, I checked voltage at 11.98 volts, cranked it up and hit 14.23. Let it run for around 1 hour, never dipped below 13.85.Alternator is good.
So I've figured it's gotta be a parasitic drain. I disconnected negative terminal and tested amperage at 0mv.ive read it should be 2-4, and 0 is an problem with my multimeter. So I just put the terminal back in the battery and kinda gave up. I went back to the vehicle about 30 minutes later to check for any lights on or anything (looked from outside, didn't open doors) and noticed the bright light indicator was illuminated on the dash.
It does have after market HID lights, but they function properly from what I can tell.
What does it mean that the hi beam indicator stays on when the vehicle is off? It doesn't stay on while the vehicle is running unless I engage the highbeams.
 

Joseph Garcia

Supporting Member
Joined
Aug 2, 2018
Posts
7,375
Reaction score
10,008
Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

You are already receiving sage advice from the knowledgeable folks on this Forum.
 
OP
OP
T

TwiztidFate

TYF Newbie
Joined
Nov 6, 2024
Posts
2
Reaction score
0
It sounds like a back feed through the lighting circuit, or an issue with the multifunction switch. Have you tried disconnecting the head lights and see what happens over night?
I have not. Didn't want to start doing anything else until I got some more info. I'll try this weekend.
 

Fless

Staff member
Super Moderator
Joined
Apr 2, 2017
Posts
11,965
Reaction score
24,382
Location
Elev 5,280
Some good info in a few threads:



 

Forum statistics

Threads
132,464
Posts
1,868,707
Members
97,172
Latest member
Mstrom
Top