HOW TO FIND PARASITIC VOLTAGE LEAK AT BATT FUSE ON

2000 GMC Safari

Tiny

granny35658

January, 3, 2012 AT 12:35 AM

Have a parasitic voltage leak at batt fuse on 2000 Safari. Can not find wiring info to know how to track the issue down.

FOUND 15 RELATED QUESTIONS

18 Answers

Tiny

saturntech9

January, 3, 2012 AT 12:37 AM

So the fuse is labeled batt?

Tiny

granny35658

January, 3, 2012 AT 12:43 AM

According to the owners manual it is called "batt fuse" It is under the hood in the bank of fuses located toward the rear of the engine compartment.

Tiny

saturntech9

January, 3, 2012 AT 12:59 AM

So when you pull that fuse the excessive draw goes away?

Tiny

granny35658

January, 3, 2012 AT 1:03 AM

Yes

Tiny

granny35658

January, 3, 2012 AT 1:40 AM

I have checked all the fuses under the dash and under the hood and this is the only one that the excessive draw changes on. I just can't find anything to show me how to trace it to the source of the leak.

Tiny

saturntech9

January, 3, 2012 AT 8:20 PM

That circuit feeds the inside fuse box also thats a big feed I posted some info on what it feeds. Also what is the draw your reading?

Tiny

granny35658

January, 3, 2012 AT 10:56 PM

The reading is.72 amp on that fuse

Tiny

saturntech9

January, 3, 2012 AT 11:00 PM

So is your battery just going dead while sitting over night?

Tiny

granny35658

January, 3, 2012 AT 11:09 PM

Yes sometimes before overnight. I.E. I park it at work at 9AM - If I don't start it by 3PM it will not start at 7PM. Have checked voltage on charger and if not charged overnight it loses at least 20 percent of charge

Tiny

saturntech9

January, 3, 2012 AT 11:18 PM

I have even seen window switches cause parastic draw before so sometimes you really have to check everything.

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