Crazy Battery Drain! Please help
#1
05-23-2019, 04:08 PM
Crazy Battery Drain! Please help
Hey guys....
So I have a bad battery drain, typically overnight. Fuses #3, 6, 9, 29, 31, 33, 34, 41, and 42 are drawing power after the car attempts to sleep! 33 and 34 I am not too worried about as they seem to be the power seat control module, so I assume I can rewire them to ACC on only or something similar that can be found on here.
3 - navigation/TPMS/
6 - AGW
9 - Overhead control panel control unit
29 - Steering column module/ EIS control unit
31 - Upper control panel control unit
41 - Central Gateway Control Unit
42 - ME-SFI/ Driver side SAM control unit
They also seem to cycle on and off. #29 and #41 are the highest draw at .11
When I pull the fuses and measure draw, All of these affected the draw by around .1AMP each. Originally car bounces between .40 - 1.55 Amp draw. With all of these fuses pulled it was still bouncing between .13 - .76
So it took removing (unbolting) F78, F79, and F81 on F33 block to get the drain down to .04-.05 amps. It’s fluctuating. Is this just due to inaccuracies in my cheap meter or the car natural fluctuations or is this some underlying issue that’s waking other things up and multiplying the issue? Otherwise it looks like drivers and rear SAM and interior fuse box (F34) are all affected!?
How can I test individual units? Also there is a noise coming from the steering column also I believe. There is some sensor in there or something?
Thanks in advance.
So I have a bad battery drain, typically overnight. Fuses #3, 6, 9, 29, 31, 33, 34, 41, and 42 are drawing power after the car attempts to sleep! 33 and 34 I am not too worried about as they seem to be the power seat control module, so I assume I can rewire them to ACC on only or something similar that can be found on here.
3 - navigation/TPMS/
6 - AGW
9 - Overhead control panel control unit
29 - Steering column module/ EIS control unit
31 - Upper control panel control unit
41 - Central Gateway Control Unit
42 - ME-SFI/ Driver side SAM control unit
They also seem to cycle on and off. #29 and #41 are the highest draw at .11
When I pull the fuses and measure draw, All of these affected the draw by around .1AMP each. Originally car bounces between .40 - 1.55 Amp draw. With all of these fuses pulled it was still bouncing between .13 - .76
So it took removing (unbolting) F78, F79, and F81 on F33 block to get the drain down to .04-.05 amps. It’s fluctuating. Is this just due to inaccuracies in my cheap meter or the car natural fluctuations or is this some underlying issue that’s waking other things up and multiplying the issue? Otherwise it looks like drivers and rear SAM and interior fuse box (F34) are all affected!?
How can I test individual units? Also there is a noise coming from the steering column also I believe. There is some sensor in there or something?
Thanks in advance.
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