I am having some battery drain issues on my truck that kills it in about two days of sitting. I just did a fuse pull diagnosis on it and found that it is constantly pulling about .2 amps and when I pull fuse 14 (Battery saver relay, interior lamp relay, accessory delay relay) it dropped to about .09 amps and when I pulled fuse 15 (stop lamp switch, (speed control, brake shift interlock, ABS, PCM module Inputs), GEM Module, RABS Test Connector) it dropped to about .02 amps (which I know is about what it should be). Would anyone know what could be the problem?

*Note; I made sure to remove the hood light and not to lose the connection when I put my voltmeter on.

Thanks,
Charles

 

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Are you sure you don't have a bad battery? That little current is not abnormal. The PCM and GEM do draw constant power for the KAM (keep alive memory). Another place to look for draw is the alternator. After all it's connected directly to the battery. were you using a low amp probe with a multimeter? If so I would clamp it to the BAT+ cable and then (carefully) disconnect the alt. output. I would also have the battery tested.

 

To the above, .2 ampere draw is normal? I'm getting to old.

To the thread starter, you went from .2 amperes to .09 by removing fuse 14. Check into those items one at a time.

Current draw in the mili-ampere scale is normal, keep looking for a draw above that.

 

I know that the battery is good cause I took it to kragen and had it tested. So far I have checked some of the relays associated with the fuses and they have seemed good. I will also check out my alternator tomorrow.
Thanks

 

Could some one tell me what the stop lamp switch is too?

 

Look where the brake pedal lever attaches to rod going thru firewall.

 

I checked the stop lamp switch and it seemed to not be the problem. Is there a special way I should go about checking the alternator? Which wire should I pull?

 

Did u ever get this fixed? I'm having the same problem