jeffh4

I bought my 2014 Chevy Suburban LT about 6 weeks ago. Replaced the battery 3 weeks ago (bad cell) and over the last week, the battery has been too drained to start in the morning.

Had the battery and alternator tested and they are fine. Removed the battery cable from the positive terminal and put a multimeter in series to measure the current draw when the car is off.

• All fuses in place: 2.1 Amps
• Removed Radio fuse : 1.6 Amps
• Removed Radio fuse and all 15 Amp fuses: 1.5 Amps
• Removed Radio fuse and all 10 Amp fuses: 1.1 Amps

At this point, I'm thinking that this model just has a very high current draw when powered off. Does anyone know what a good range should be for a 2014 LT or similar model?

Thanks,

tech2

approx 50 mamps is allowable. i haved tested the pick ups and they go down to 10mamps.
-unplug/disconnect any aftermarket stuff on the vehicle....ie.aftermarket remote start module; a normally operating aftermarket remote start adds 30mamps.

it may take up to 20minutes for the modules to enter sleep mode after you disconnect and power up thru your meter. Use a battery isolator as your meter will probably time out.
when you take a fuse out...don't put it back in or you could wake up a module.

jeffh4

Thanks for the tip. Along with the instructions in this video:


I figured out that I was doing several things wrong (plugging fuses back in, not waiting 30 seconds for charging circuits to complete, had the door open once, etc.).

As a result, I've isolated the part of the circuit that has the problem. I'll write a separate thread for it.

Thanks!