Odyssey battery draining

I just read a post talking about the doors and the battery draining. We have been having trouble with the doors seeming to hang up when we try to open or close it. It would act as if something bumped it and would beep and open/close back. The safety feature and all...

In other words could the door be related and how and how would we fix it?

Check YouTube for checking parasitic battery drain

You appear to have a parasitic drain problem. I had this on a 2008 as well as a 2014 Honda Odyssey van. What the problem was is that a AC relay fuse had gone bad. When the fuse goes bad, it constantly tries to engage the air conditioning compressor even when the vehicle is turned off. As a result, it keeps trying to engage the compressor until the battery is totally drained. The AC relay, which is less than thirty bucks, should fix your problem. Swap it out with a new one, and see if that fixes your problem. If it does not, please take your van to a real mechanic to do an electrical system analysis.

Same problem on my 2005 Honda Odyssey EXL drains battery, alternator n battery good. Both sliding doors good. Replaced A/C Clutch Relay(R4), Ebay $9.50 for 5, very cheap!

YOU HAVE THE WRONG BATTERY IN YOUR VEHICLE. UPGRADE YOUR 550 ACC BATTERY TO A 600 ACC OR HIGHER. YOU WILL BE GLAD YOU DID. SAJ

When you needed to to replace the AC clutch relay cuz it was draining your battery dead was your air conditioning still working

Great answers, but my problem was not the ac relay, Left slider door was not working and the drain was from the micu module in the rt rear of the vehicle...pulled the top left right plug off that part and the .6 amp current drain went to 0...no battery problems since, Now to figure out what's going on with that door...

I'm having a similar issue with my 2018 Odyssey. It's just over a year old and kept in the garage, so the battery shouldn't need replacing yet. I brought it to the dealer for a sliding door latch recall. Since then, the battery has been dying every weekend. After it happened the first time, we've been hypervigilent checking the lights, etc. We haven't left anything on or open. So we think it's the doors. I'm at the dealer right now waiting to see what they say....

GuruCTQH4 I am having the same issue. Could you let me know what the dealer said and if the issue was fixed?

I have the same problem and have not found the solution. It is draining 0.2 amp and if I keep the car standing for 2-4 days - It dies. I took out fuses one by one and check if current dropped. I didn't find any fuse that significantly reduces the drain current. I need help which components/subsystems don't go through fuse system.

I’m having the same issue. We are on third battery and replacing every two years.

Same issues with battery drain. I have been experiencing noted issues with doors and over the summer my AC did stop working. We are on battery #3 and alternator #2 (about 9 months span) Going to attempt to follow some of the tips noted in here.

We are on our 3rd battery. Did a parasitic battery draw test and had .32 ma draw. Pulled Backup #7 fuse and reading decreased to .02 ma. Looking at the schematic it’s showing the rear sliding door mechanism might be the culprit. Might have an issue with the micro switch causing an audible door alarm while in drive. There no warning lights in the instrument panel indicating the rear sliding doors are open. I’ll post my finding once I find the root cause.

We are also having audible door alarm while in drive. Switching to manual door silences the alarm but the battery drain has been happening along with it since fall. Waiting to hear your finding Odydude. Thanks!

Any answer to audible door alarm while driving? I'm having repeated dead batteries in 2016 Odyssey and have had problems with door alarm for past year (usually when very hot outside).

i had this problem on my 2009 Honda Oddysey. i did all the checks, replaced the AC relay, took it to several shops and still had the problem. I notice that there are 10 relays with the same part number as the AC relay. There are 4 under the front driver side above the fuses, 3 on the front passabger side next to the fuses, and 3 under hood 1 being the AC relay. I went through 4 batters in a years time. I thought if the AC relay could cause this problem, then any one could be a problem seeing that they are the same relay. I replaced them all about 4 months ago and it fixed the problem. I do not care which one was bad, all I know is the problem is fixed.

I have a my Odyssey 2007 at the Honda dealership for 3 weeks you let the car sit three days battery is dead. They put new battery, changed ac relay switch fixed both power door still believe there is an issue wit left door, but they said no any other ideas

Go to a mechanic that specializes in electrical. You don't happen to live in nocal?

Kamibird, I'm having same battery drain and left sliding door problem on my 2009 Odyssey EXL. Do you know a good mechanic that specializes in electrical around Sacramento CA?

if you leave your key in it drains the battery... i have the same dead battery problem.. the doors arent connected so that they shut by themselves and i think the doors are our problem also..

I have a 2006 Honda Odyssey. I've had the issue with the door chime staying on unless the automatic door switch is turned off. The drivers side sliding door sometimes works (when the chime stays on while driving) and sometimes doesn't (the chime will stay off while driving). I also have a parasitic draw going on that drains my battery in a day or so. The battery is brand new. I took the van to the Honda dealership and they were unable to find the issue with the draw. They did say that it appears the sliding door rear latch was faulty and the control unit. I've replaced both and hasn't fixed the battery drain. I don't want to spend another $135 at Honda just for them to tell me they don't know anything. What would be the next step to find out what's killing my battery?

and never forget that the factory radio could be the cause ... i just had that with an 2005 odyssey..

I'm having same battery drain and left sliding door problem on my 2009 Odyssey EXL. Anyone know a good mechanic around Sacramento CA that specializes in electrical and has dealt with this seemly common issue? Any help with this frustrating issue is much appreciated!

Do your sliding door closes and unlatches about 1/4”

GuruH1WTR< My right door does that and I have the parasitic power drain issue W/the door alarm while in gear.

For anyone who suffers from parasitic power drain issues and whose sliding door doesn’t latch properly, attached is a photo of the sliding door latch motor. Remove it from its housing and check for a seized spring latch. Spray it with WD40 and move it back and forth. Once it releases add some grease and replace and it should fix your problem.

I fixed my door, It was one of the micro switches on the rear latch, it was bent out of shape causing it to not engage Let's hope this fixes the parasitic drain issue as well, fingers crossed.

GREAT!!! good luck

I have a parasitic drain problem on both my 2006 odyssey EX with power sliding doors (I replaced left sliding door rear lock) and now my 2007 odyssey LX with manual doors has a 3.9 amp parasitic draw. If i remove fuse 22 the drain stops the 70 amp side is the problem. It supposedly supplies the passenger fuse box, but I pulled out every fuse and both Omron relays above the fuse box and the 3.9 amp parasitic drain persists. Does anyone have a wiring diagram of the circuit the 70 amp part of fuse 22 120 A/ 70 A ?

I have Battery draining issue too. I have the radio on - on accessory mode, in 10 minutes the battery is totally dead. The alternator and battery were changed but resulted in same problem when radio on accessory mode. My thought is the battery could be undersized --- and lesson is run the car if the radio is on. I have other cars but do not have this electrical problem. Any suggestions?

Guys if the culprit in the rear sliding door for the culprit and chaining the motor is the answer do you know how much will it cost

For months I suffered with parasitic drainage on my 2006 Honda Odyssey. Checked every fuse you can think of. After some of my own labor and lots of research I fixed the problem and it never came back. The cost $0. It turned out to be the rear passenger sliding door latch. I have a picture on one of my previous post. There’s also a video explaining the whole procedure.

I have a 2007 ex, buzzer would go unless I turned it off. Left side sliding door motor bad, computer thinks the door is open (buzz), won't go to sleep, battery dies in 3 days. Replaced it, $500 parts and labor, no problem since.

We have changed the a/c relays and still have the battery drain. We turned the power doors off. And is still draining the battery. We had a new alternator and battery installed recently. Any other ideas on what to check?

GuruH1WTR Regarding the rear passenger door latch not closing all the way + a slow battery drain: The battery goes dead after not using the van for 3 days and the rear passenger door sticks out about a 1/4" from the rest of the car. I followed the tips that you gave: I removed the door latch cleaned it all up, saw that everything seemed to be working well, and reinstalled it.... but no fix. I also bought one from an auto-wrecker but when testing it, nothing changed so I reinstalled the original. Some extra info: the door seems totally dead, it doesn't respond to any input, whether from the key fob or the dash switch. Any ideas?? I've been trying to figure this out for a long time now.

Did you remove the door latch cover and moved the pivot cam back and forth. My door would not do anything at all. After I removed my door latch and tinkered with it and noticed that one of the pivot pins was seized. I greased it up and managed to get it loose. Once I replaced it and switched on the main sliding door switch it literally came back to life. I truly have done everything you can think of to make it work and it’s going on 2 yrs and it’s still working great.

I found this thread via google - I have a 2008 odyssey. New battery, alternator replaced less than a year ago. I am also experiencing the battery drain issue. Mechanic can’t figure out why. Any advice? What do I tell him to check? I’m not particularly car savvy but googling this seems to have yielded more information than he seems to have come up with having it two weeks. . .

Hi Guru9Y5JVZ and Dka2020. I’m convinced that it has to be the sliding door latch. I’ve done everything fuses, batteries and relays; it still drained. Once I fixed the door latch I no longer have the parasitic drainage problem. Continue working on that latch. Good luck!!!

We are just getting ready to pick up our van from the dealer as well. Exact same problems are you all are mentioning: parasitic battery drain. We also have issues with the drivers side slider beeping, so we have disabled the doors. Still a drain. The dealer is suggesting we replace the master fuse box, but then tell is that may still not solve the problem. I think we will try some of the suggestions here before we spend the $800 for their recommendation....

My mechanic gave up. He disconnected the power locks which is a pain since there is only a keyhole on the drivers door. I can power unlock but not lock. Imagine the circus of me trying to get my two year old in the car. But the key has to be in the ignition to power unlock. But once I’ve done that, then the back hatch is just stuck unlocked. There’s no way to lock it. This is a mess and really annoying.

2007 Odyssey battery drain issue also. tried many things, including AC relay. Our power door cables have been removed for several years, but power latches still draw in & then release back to flush body as normal. could these functioning power latches still be the cause of battery drain?

Hi, don’t let the dealer replace the fuse box. It has nothing to do with your problem. I had the same exact thing. Did everything you can think of to stop the parasitic drainage. Read my previous post about the side locking door latch. It should fix your problem

removing the fuse #7 reduces the current from 0.37 A to nearly zero. #7 is for power lock and security system. Odyssey 2010.

Hoping this helps someone. Same frustrating ~1.5 amp draw causing the battery to drain within about 8 hours on our 08 Odyssey. 1st mech shop couldn’t find it (tried for 2 days) so we started to disconnect battery nightly (would start fine in the a.m.). Took it to electrical specialist shop, found it right away; the A/C clutch relay as noted above. Makes perfect sense as just before we started w this, we turned on the A/C / heater and smelled electrical. Never thought they were related.

If I pull the fuse for the rear sliding door, will that stop the parasitic battery drain (if the door latch is actually the problem)? The fix looks like something I MIGHT be able to do, but can't get to it, so need a stop-gap.

My alternator died on my 2006 Odyssey, and when it did so, it apparently caused a dead short. It killed a brand new 36-month battery in < 50 minutes. When I had the alternator tested, it didn't even confused the alternator tester machine. Replacement solved the problem---and thankfully my trickle charger restored my new battery. It was definitely a weird problem, considering no one had heard of a dead alternator having a dead short condition.

I am having the same parasitic battery drain on my 2015 Odyssey EXL. It is currently at dealer and telling me that it's an issue with hood latch & hands-free/bluetooth module (I did have issues with bluetooth connecting to my phone even when car engine is off). Did anyone have same or similar issue? Thanks in advance for your response/feedback.

https://www.wikihow.com/Find-a-Parasitic-Battery-Drain

I had just changed my starter which i over looked as a drain issue. It seem to have solved the drainage problem.