Battery Drain: key light and clock flickering?

[cctt]

Hey guys. Have a 2015 and recently after the truck sat for 3 days, I went to go drive it and it wouldn’t crank. Battery was drain for some reason. New battery installed last year with optima agm. Anyways charged it back up and it’s been fine. But I notice that the key light and clock has a dim flickering when the key is out. I wonder if this is causing the drain. I pulled the 10 amp fuse for the dome underneath the hood and it turn it off. The fuse is good. I do have something pulled into the obd2 port for throttle. Not sure if that can drain the battery.

Ang suggestion?

 

[fourrunnerbill]

Hey guys. Have a 2015 and recently after the truck sat for 3 days, I went to go drive it and it wouldn’t crank. Battery was drain for some reason. New battery installed last year with optima agm. Anyways charged it back up and it’s been fine. But I notice that the key light and clock has a dim flickering when the key is out. I wonder if this is causing the drain. I pulled the 10 amp fuse for the dome underneath the hood and it turn it off. The fuse is good. I do have something pulled into the obd2 port for throttle. Not sure if that can drain the battery.

Ang suggestion?

It's likely what you have plugged in. Trouble shoot this by removing it and see if the issue goes away.

 

[gunner4187]

https://www.youtube.com/watch?v=-uW5e-sLK0o&pp=ygUjcGFyYXNpdGljIGRyYXcgdGVzdCB3aXRoIG11bHRpbWV0ZXI%3D

 

[cctt]

just an update.

I have narrowed it down to the ACC fuse on the driver side kick panel. When I pull that fuse, the key light and interior dome light doesn't blink on and off. The clock is off as well.

With the ACC fuse in, my remote key wouldn't lock/unlock until I continually click on it. With the ACC fuse out, the remote key work the first time and all symptom goes away.

This suggest something to do with the ACC fuse and device connected to it.

From what I gather, the ACC run the following:

1. audio system
2. 12v power outlet
3. clock
4. accessory relay circuit?

With the ACC fuse in, I unplug the stock audio system. Same symptom.

I'll see if I can unplug the 12v power outlet next.

Does anyone think it could be the integration relay (part 82641-60080) which is located in the engine fuse box. I believe that relay is connected to the ACC fuse? since when the key is in the ACC or ON, it uses that integration relay.

I saw someone posted document to test the integration relay which I will give it a shot before ordering it.

I replaced the MBX which is the body ecu thinking that was the issue as the parasitic drain was on ECU-B fuse under the hood. When I pull that fuse it would go down.

anyways if someone has the wiring diagram for the ACC fuse or the body ecu (mpx), I would greatly appreciate it.