battery in hatch = battery drain

[grey88smokin]

Ok, well the test light did not light on the neg or positive side.

I had the DMM on A DC/AC, moved it to mA and got the same reading. I have uA mA and then the setting I was using in the first place. I disconnected the clock and the DMM went from 1.73 to .43. This was using the mA setting.

I tested the ground in the trunk and have less than .5 ohms.

My logic in checking amps across the battery was to see if any of the circuits were pulling as many amps as the battery had. As in being shorted to ground.

So where the car stands now it should be good on that one circuit(I think). I have a drain of about 1.95 when the thin brown wire, it has a 10A fuseable link and from that link is yellow, is connected. With the ignition on, when powered the fuel pump primed. Is there anything else this wire powers that I need to look at?

[Meotchh]

Enjoy the christmas ornament.

[grey88smokin]

I found where this mystery wire goes. It is the power to the EEC. It has continuity to pin #1 and to the EEC relay.

With that wire connected the drain is 1.97; I took the harness off the EEC and the drain went down to 1.53. Disconnecting the EEC relay did not fix the issue. Now that I am thinking about it, is there a problem if there is cont to pin #1 with the key off? Sound like the relay could be stuck maybe even if disconnecting if didn't bring the drain down?

Thanks for all the input so far, I have learned quite a bit so far. This is the first time I am chasing down a drain on the battery so I am on very unfamiliar territory.

[blueboss]

Ok.....If you're trying to measure continuity between two points, those two points MUST be isolated from everything. This holds true for all electrical circuit troubleshooting. In your case, if you want to accurately measure that wire, you must disconnect it from the EEC then measure it. Otherwise, you're measuring everything inside the EEC as well.

From the description of EEC Pin 1 (keep alive power), one could deduce that voltage is applied at all times to keep the memory alive. Hence, voltage at all times, with or without the key on. From my experience 430 mA will discharge a battery. But you've got a bigger drain elsewhere. And I'd be looking at that clock circuit myself. You disconnected the clock and current went from 1743 mA to 430 mA (the latter being KA power or EEC pin 1 current draw). I'd say that's a big 'ol giant foam finger pointing at the clock circuit. Whaddya think?