2 Week Battery Question

<div class='quotetop'>QUOTE(rick57\";p=\"87151)</div>

Thanks Rick, guess I got your actual readings confused. Thought the classic was lower.

 

When you say door, do you mean the power window circuit?
Here is one theory. . .
Could be rain that has ran down to window up/down switches causing high resistance circuit around switch.
I have noticed when it is raining, and the window is open the slightest bit, that it comes in the window and runs down to the swiches on the (driver side) door arm rest.

 

Sorry for the delay,been busy lately, .

There shouldn't be any drain from the windows/door locks when at rest. The only way might be a Auto Window switch stuck,but have never seen one on a Prius. Any other fuses drop the load? Key out of ignition and trunk light out? Any aftermarket accesories? Radio/dome lights ok? Factory audio?

As for the TSB you asked about, I have only installed it one Prius. An older gentleman was always leaving his sit for extended periods. This TSB had just came out within the previous few months and we suggested it to him. It is a little larger battery and brackets to make it fit. Still,I didn't like the fit and would not suggest it unless you absolutely want it. I would have the battery tested with the Midtronics Tester ( all Toyota dealers should have ) to make sure the battery is ok,100% state of charge. Then I would try to track down the source of the draw. If all is ok, you shouldn't have any problems. :wink:

 

Where do you check the draw from the battery at and using what setting on the meter?

 

Do you mean you have the negative cable unhooked Greg? That is the way to check fro draw. Unhook the negative cable, hook one lead of your meter to the battery post and the other to the cable. That way the meter is in the line. I have not run into any problems with draw on the Prius except for a few that had aftermarket accessories installed. So if yours is all original that is unusual.
As for the battery replacement, I wouldn't think they would warranty it, but I don't think they are to expensive. And I will try to get a minute and check the wiring diagram for what all is on those fuses.

 

Greg,
I believe the window switches are both ok. Chances of 2 bad ones is very high. Think we need to look else where. Also I have an 02' at work to do the battery recall tommorrow and will check the draw in the morning.
As for the fuses, here goes;

The 30A Door fuse goes to the Body ECU. From there, the ECU controls the Power Door Lock Control, Theft Deterrent and Wireless Door Lock Control systems.

The 7.5A ECU-B fuse goes to the Body ECU, A/C Amplifier, EMPS relay ( then to the Body ECU ), Gateway ECU, and Transponder ECU ( for Immobilizer system ). The circuits affected are the A/C system, Combination Meter, Door Lock Control, EMPS ( steering system ), Gateway ECU, Headlight ( if it has Daytime Running ), Immobilizer System, Interior light, Key Reminder/Light Reminder, Light Auto Turn OFF, Power Window, Theft Deterrent, Wireless Door Lock Control.

So you see there are many paths for the power to go. Looking over the circuits I found that ground ID is shared by all of them. It is located on the inside of the drivers hinge post. Maybe looking up from the floor,up under the dash you maybe able to see it. Other then that, I usually just follow the circuits, finding connectors,etc. , then start unplugging. Sometimes it takes a while to trace it down. I will double check the draw readings in the morning and post them for you.

 

You can find the electronic version of the manuals at http://techinfo.toyota.com/
This site requires a subscription but gives you all you should need including any recalls.


Terry

 

Right you are Terry. You can get access to all the Toyota info at techinfo site. It is a subscription to get in there tho. But worth it if you need info for do it yourself.

As for the draw reading Greg, I checked the 02' I have here this morning. Upon hooking up the meter,it was high, then dropped to 75-81ma. I thought maybe I was wrong but leaving it on about a minute or two, it dropped again and was bouncing between 30-36ma. Are you leaving it on long enough? Maybe it will drop more if it had more time. Otherwise it is going to be a hunt to find the draw, :lol:

 

I have not tried to download any but you should be able to save them. The pages are in PDF. I believe Evan and others here have downloaded from the site. And glad to here your electrical system is normal. Maybe you just have a weak battery. Have the dealer check it for you.

 

yes, you can save them. They are organized in small sections and it is a lot of downloading to get them all. But for 20 to 30 dollars and lots of hours spent you should be able to get them all.