RESOLVED: Parasitic Battery Drain of 250mA on Fuse 7 7.5A . Could it be something else besides door latch?

hpark21 · Jul 31, 2022

Did you TEST the NO/NC switches from digikey to CONFIRM their operation? NO switches (Normally Open) = if that little button is NOT pressed then there will be no continuity between the 2 leads.
NC switches (normally closed) = if the little button is NOT pressed, then there WILL be continuity between the 2 leads.

fatlard · Aug 1, 2022

hpark21 said:
Did you TEST the NO/NC switches from digikey to CONFIRM their operation? NO switches (Normally Open) = if that little button is NOT pressed then there will be no continuity between the 2 leads.
NC switches (normally closed) = if the little button is NOT pressed, then there WILL be continuity between the 2 leads.

Yes and tested fine. I did am sure they are in the right location now…. I also swap the cables around and it did not make a difference…. Still at 770ma draw….
Biggest issue is now the latch is no longer working and fully engaged…with the door fully shut…

I cannot open the door manually and or using the motor. It sealed and no longer opens. The door panel is still open so I can access all the cables…but there is no way for me to unlatch the door. I cannot get the to 3 bolts holding the latch from the back of the door

even if I wanted to order a full OEM latch…. I cannot get the door open to get this latch out…

I am DOA and will most likely bring it into the dealer tomorrow

hpark21 · Aug 1, 2022

fatlard said:
Yes and tested fine. I did am sure they are in the right location now…. I also swap the cables around and it did not make a difference…. Still at 770ma draw….
Biggest issue is now the latch is no longer working and fully engaged…with the door fully shut…

I cannot open the door manually and or using the motor. It sealed and no longer opens. The door panel is still open so I can access all the cables…but there is no way for me to unlatch the door. I cannot get the to 3 bolts holding the latch from the back of the door

even if I wanted to order a full OEM latch…. I cannot get the door open to get this latch out…

I am DOA and will most likely bring it into the dealer tomorrow

can't you manually pull the cable to disengage the latch?

Disconnect the power going to the latch (A):

Then, monitor to make sure that the latch cables are moving when you pull the out side door handle - and is properly attached.
If needed, try to PULL on the latch cable (there are 2 of them) - to see if it will manually unlatch - while pushing the door out - assuming front latch is working:

fatlard · Aug 2, 2022

Issue resolved.

Car has been repaired. Latch has been replaced by the dealer. See this thread for more details on LATCH replacement. RESOLVED: Help? DIY project headed towards nuclear...

Parasitic drain is gone.
Total cost was $871 after coupon was applied.

fatlard · Aug 5, 2022

Well this super sucks.. I took the dealer's word for it that the parasitic draw is gone...

Van would not start today. Measure the amp draw on the negative battery. ~260mA draw. WTF.

Called dealer and we have to schedule a follow up visit...two Monday's from now.

alpha1976 · Aug 5, 2022

fatlard said:
Well this super sucks.. I took the dealer's word for it that the parasitic draw is gone...

Van would not start today. Measure the amp draw on the negative battery. ~260mA draw. WTF.

Called dealer and we have to schedule a follow up visit...two Monday's from now.

man this really sucks! I hope they fix it. Good luck!

thscott · Aug 5, 2022

fatlard said:
Well this super sucks.. I took the dealer's word for it that the parasitic draw is gone...

Van would not start today. Measure the amp draw on the negative battery. ~260mA draw. WTF.

Called dealer and we have to schedule a follow up visit...two Monday's from now.

Bummer. Sadly dealerships are bad for doing complex diagnostics. Perhaps your other latch is bad?

fatlard · Aug 5, 2022

thscott said:
Bummer. Sadly dealerships are bad for doing complex diagnostics. Perhaps your other latch is bad?

The odds are against both going bad at the same time.

Would body codes B1222, B1234 or B1241 cause a parasitic drain?

fatlard · Aug 5, 2022

Would my dashcam that I hardwired in the cable bunder above the sunglass's holder cause the parasitic drain? Is that run off FUSE 7?

hpark21 · Aug 5, 2022

fatlard said:
Would my dashcam that I hardwired in the cable bunder above the sunglass's holder cause the parasitic drain? Is that run off FUSE 7?

That is possible. Easy to tell, no? pull fuse #7, start the car and see if dashcam turns on, if not, then yes it runs off of fuse 7. If it still turns on, then no it does not.

thscott · Aug 5, 2022

fatlard said:
Would my dashcam that I hardwired in the cable bunder above the sunglass's holder cause the parasitic drain? Is that run off FUSE 7?

That is very possible. You may have found the cause of your issue.

thscott · Aug 5, 2022

I did not go back and reread your thread, but have you already ruled out the other very common cause of parasitic battery drain - the AC clutch relay?

fatlard · Aug 5, 2022

thscott said:
That is very possible. You may have found the cause of your issue.

just removed the hard wire dash cam. It was tapped using positaps. Sadly the drain still persist…ugh

fatlard · Aug 5, 2022

thscott said:
I did not go back and reread your thread, but have you already ruled out the other very common cause of parasitic battery drain - the AC clutch relay?

purchased a new AC relay just for giggles and swapped it out. Issue still persists

WiiMaster · Aug 5, 2022

fatlard said:
purchased a new AC relay just for giggles and swapped it out. Issue still persists

You did replace the correct relay, yes? There are 3 of them that are all interchangeable but only one of them typically causes a draw. Should be the black one closest to the front of the van.

fatlard · Aug 5, 2022

Yes, correct. I pulled the one between the two blue taller relays. It is the one labeled with the snow flake.

I went on a detaching spree.

Removed hardwire dashcam. It is now powered by USB.
Disconnected driver window and lock switch
Disconnected passenger window and lock switch
Disconnected rear sliding door window switch for both sides
No change in draw.

Disconnected SVCM. 8 milliamp drop.

I guess I am dreading taking this back to the dealer. They are going charge me $180 to diagnosis but I am hoping to convince them they did not fix the original issue. On the dealer invoice notes they explicitly state they have a drop from 700mah to 29mah...

Btw.. how long do you have to wait for deep sleep on the Odyssey to take a reading? I am still reading 260 milliamps after about 30 seconds

thscott · Aug 6, 2022

fatlard said:
Yes, correct. I pulled the one between the two blue taller relays. It is the one labeled with the snow flake.

I went on a detaching spree.

Removed hardwire dashcam. It is now powered by USB.
Disconnected driver window and lock switch
Disconnected passenger window and lock switch
Disconnected rear sliding door window switch for both sides
No change in draw.

Disconnected SVCM. 8 milliamp drop.

I guess I am dreading taking this back to the dealer. They are going charge me $180 to diagnosis but I am hoping to convince them they did not fix the original issue. On the dealer invoice notes they explicitly state they have a drop from 700mah to 29mah... View attachment 169761

Btw.. how long do you have to wait for deep sleep on the Odyssey to take a reading? I am still reading 260 milliamps after about 30 seconds

I think you have to wait a couple hours.

fatlard · Aug 6, 2022

thscott said:
I think you have to wait a couple hours.

really? That crazy amount of time for it to fall to deep sleep

celicool · Aug 6, 2022

Your problem is being compounded because of a bad battery. Get a new battery so you have 1 less factor on your plate. I have a hardwired dashcam too, and it could stay on for a whole day without depleting my 800 CCA battery.

fatlard · Aug 19, 2022

Took the car for a 500 mile drive and unplugged the fuse just in case

Came home last week and the car is operating normally with fuse 7 plugged in. Battery did not drained overnight.

So, I am going to chalk this up to poor battery performance, inexperience DIYer and possibly a latch issue.

I am going to mark as resolved.

RESOLVED: Parasitic Battery Drain of 250mA on Fuse 7 7.5A . Could it be something else besides door latch?

hpark21

fatlard

hpark21

fatlard

fatlard

alpha1976

thscott

fatlard

fatlard

hpark21

thscott

thscott

fatlard

fatlard

WiiMaster

fatlard

thscott

fatlard

celicool

fatlard

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