How to Fix Chevrolet Malibu P305F Code
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- Опубликовано: 16 июл 2024
- A high failure rate of the small auxiliary battery in the trunk of the Chevrolet Malibu Eco models is the most common cause of a check engine light associated with the P305F code.
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Just wanted to say that I got this P305F code my 2015 Malibu along with another code ( P16D0 - but doesn't have anything to do with this code). After finally getting the part for the other code, I had only this code left. I had the auxiliary battery tested before I purchased one, and it tested just fine, no issues 100% and 13 volts. I also tested all the connections from the front and back like this video showed. My issue turned out to be my main battery. I had a mechanic test the main battery, and even through the battery had 12.7 volts, the device read "bad battery" and showed that the battery did not have enough cranking power. I replaced the main battery and it fixed my problem and the code.
What did u need to do for the p16D0?
My car has that code and doesn't start.Both batteries are good but now car won't start. What do I do now?
Thank you. Dealership wanted $225.00 to run Diag / connect code reader. Auto zone charged $0.00 to read and Google to code. You helped me save $325.00
Dealership wanted $100.00 to install the battery if I bought it from them. Autozone had the exact battery for $80.00 less AND installed at no cost!!!
Just changed my buddy's auxiliary battery, he took it to the dealership and they told him $1700 to fix the problem! They were going to charge him $670 for the battery and another $670 for some sensor they claimed was bad them $500 in labor! The auxiliary battery only had 8 cold cranking amps left.
Thanks for the video. The auto stop feature is absolutely ridiculous. If I had known about it before I bought this car, it would've been a No from me
same!
Same
Same!
You saved me from bringing my car back to the dealership. Money saver... Thanks
Nice job on the video. You explained the issue very well.
thanks man come to find out I'm missing a nut on one of my main battery fuses, you're the bomb
Thank you thank you!! I'm out of town and my check engine came on while I was on the highway. My scan tool returned this code and I didn't know if it was worth sweating or not.
Great video. Very well explained and demonstrated as well. Thank you.
Great tutorial, thanks for the step by step.
Thank you !!! This battery exchange solved the issue.
Thanks, straight to the point video.
I love these newer GM car vids bc im a gm tech and love learning more about them. it gives me a heads up if I ever get one with a similar issue
Thank you this saved me time and money
Thanks...great explanation and it fixed my issue.
Great video 👍 thank you and keep up the good work
I believe the ground you pointed to at the 3:45 mark is G110 and actual ground called out in bulletin is below battery box a little further and is G103. Great vid by the way.
Thank you so much. This is big help.
Good shit! Perfect video sir p👌🏼
Damn yo thanks for the info this video helped a ton! I have my car auto stop/start off and i noticed that from time to time it turns off at stops. Then from time to time i hear a little alarm going off in the car when I start the car. And just today my check engine light came on so I’m definitely taking it to get tested since i don’t have a test tool.
Thx so much you really saved me from spending too much money great idea thx
Thank you. $120 later and an easy battery swap and the issue is gone
Damn chevy was about to swindle me for an ass whooping 800bucks just for a simple replacement of my aux battery lol Thanks for the tip man
This might as well be a recall issue.... smh
I’ve replaced that battery twice in the lifespan (256,932miles)of my 2015 Malibu it’s ridiculous, but I’ve learned when that code pops up it’s the darn battery
Very good video! Thanks for the help!
Thank you for sharing this video
Having a second battery that needs to be replaced (after paying for a diagnosis) at least as frequently as the main battery, defeats the savings of the start-stop system, especially if the second battery has a shorter life than that of a regular battery. With gas prices going down savings of start stop system are even less.
bigcrowfly and it's also wearing down the starter a lot more than it'd have if it wasn't designed by idiots.
@@aliabdallah102 oh yeah add starter.... having it fixed tomorrow
it's all a fucking racket.
Great video!
thank u so helpful
And great video, btw.
Thank you
Thank you your video was very helpful
Where is a good place to buy that battery? autoparts ? in the web?
Thanks worked perfectly i replaced my auxiliary battery
Would this cause the main battery to be dead the next day if the aux battery is bad?
I replaced the battery with a duralast, its on pretty well, i check the grounding. The engine light cleared but a few hours later it came back on. Any advice on what to do for this?
Thanks
Got the same code on my 2017 Chevy impala, everything you said happened to me so I assume the same rules apply to me as well
I'm going through that right now. 2017 Chevy Impala LT 2.5L Ecotec
Don’t have a battery tester that shows cold crank but I wanna check it before I replace it what should I do :,( and autozone doesn’t have that either
I love you thank you😘
If both batteries are good but the positive terminal and ground to the aux battery were loose could that be the problem?
How much is the battery
Good video . just need to make sure to disconnect the rear aux battery before testing or may test good due to front battery feeding to the back one. 🤘🤘
How do you disconnect it?
@@BlueRain508 just disconnect the negative first then the positive. 👍
I need help, so my car never had CEL on, it has been at the Bodyshop for 3 weeks, i just got it back today and had cel on, i got code P058D and U0073 under pending on my scanner… i checked the voltage under the door battery it reads 11.99 when car is on and 13.66 on the battery un the trunk.. when i clear the codes cel comes back on…. Do i really need to replace under hood battery or what is it??? Its 2014 malibu 2.5l lt Eco
Shame that the access panel patch for the aux battery doesn't match the polarity of the battery inside.
Same on the Impala? (2015)
Great video. I have a 2016 Malibu LS and the check engine light came on and I noticed that the auto-start system quit working. I guessed (correctly) that it was the battery in the trunk. I have not replaced it yet as it just happened two days ago. Now onto my question. I really dislike the auto-start. Will any damage be done in any way if I just don't change the battery?
Did you ever find the answer to this ?
@@tayyslime1608 Yes and no. The dead/dying battery was responsible for the code. I put in a new battery, cleared the code and all was good. As for will any damage be done if I did nothing.... I never got a response, but an educated guess is no. No power to the auto-start and it just won't engage. I can't conceive of any issue with that except one and that's why I got the new battery. If I didn't get a new battery the check engine light would always be on, and maybe when something more serious happens I would not know, because its always lit.
@@nickevers9571 thank you I’m going to get a new battery for the trunk to see if the light goes off . I spent 300 on the BCM I’m thinking I don’t need that .
@@tayyslime1608 The light will not go off until you clear the code.... but the auto-start system will work again.
Great question
Tks.
Im beat on this one. Replaced main battery, aux battery, cleaned the grounds, replaced dbcm, and fuse block ontop of the main battery, still illuminates for p0305f.
I’ve done the same thing, did you figure it out?
Any luck...I'm sitting in my car with hood up and multimeter digging into everything
Same issue here installed a motor with 30000km on it and it starts up and dies and the codes are p305f and p058d I've tried everything listed on the technical service bulletin but also I had found another bulletin posted from GM stating if you have these codes to contact a GM engineer his name and number was also listed on said bulletin aswell so I'm trying that monday
Hello I need help with my 2013 Chevrolet malibu 2.5L I need to know were the Fuel pump relay is located at can you help me thank you..
Can this cause theft deterrant mode?
Had the second battery in the trunk replaced twice already and they only last about two to three months anyone else experience this?
I still have the code showing up. Changed both batteries and also changed the main battery top module. Check all ground cables but nothing still there. So I dont know what else to do. I took it to the dealer they had it for 7 days and they didn’t figure out either I end up getting the car back home. Now im getting code P2646 rocket arm solenoid. And car is shaking when driving the car. I will replaced the solenoid and see what happens. But also probably will change the whole battery ground negative terminal and maybe I will change the battery current sensor as well
I fixed at the end it was Fuse #18 battery isolator. Is locate it under the hood fuse box next to the main battery open it and replace fuse 18 you can use the fuse at spot 57 which is a spare.
I been driving like that for years whit the light on, same code p305f, is it safe?
BERY GOOD
What is the torque spec on those 8mm nuts in the fuse block?
You pointed to the incorrect ground. The ground is at G103 which is under the battery by the starter!
I've been sorting this problem out for a bit on a 2016 Malibu. My question that I just cant seem to resolve is. Why does this model eat up these batteries so often. You had indicated 99% of the time its the problem. 100% so far for me. I replaced the battery after I had researched and learned that likely to be the case. And a simple test. Seemed like after a few months the check engine light came back to life. So I again started looking into all the connections and Fuse block and the (DBCM) dual battery control module. All seemed well. So back to the battery to double check because stranger things have happened. Sure enough. The battery was at 27%. recharged full. Hooked up again and had dropped to 76%. Bad battery indicated. So trying to locate a new battery. Probably sitting in a shipping container off the port of Los Angeles. Does this battery charge from the alternator as well or? Would it benefit from separate trickle charging? Does the frequent charging over charge/cycle and kill it? Usually these little batteries die of neglect and lack of regular charging and or use. But you'd think in a regularly driven vehicle it would be maintained well enough to last as well as your primary battery. AutoZone has a Duralast Platinum AGM with a 3 yr replacement warranty. Most others are only a year. That seems to be about the life span. Any thoughts or light you can shed?
I have the same problem . I replaced the front battery now I’m going to texst the auxiliary battery probably that’s the reason I have the code.
A couple of months ago my husbands car stereo turned off as he was driving suddenly the car turned off completely. He quickly started the car and as he drove the car would turn off a couple of times more. We notice that at times when he turned the steering wheel it would just turn off. Is that a main issue on any Malibu or on certain model years.
This is happening to my car right now , 2015 impala LS . Don’t know what’s the issue , replaced the battery in the front , back , and battery control module
Did you ever find out what the problem was?
I bought two brand new batteries for my 2015 Chevy Malibu LS from the dealership Chevy and I still get the same code reading and none of my bolts or anything are loose and none of those things in the engine are rubbing up against each other and stuff like you said that can cause it to happen but I get it randomly all the time I mean I’ve literally had the batteries for six months or less
same bro have you found out the issue ?
This is ridiculous, I keep getting code PO58D which says axillary battery or battery sensor. Replacement of axillary still doesn't fix it and dealer wants 678 dollars to replace the sensor saying it's 2 hours. I thought the sensor was right on top of regular battery cable, am I wrong?
Dang, that blows, gives me an idea on mine.
Malibú no me ensiende 2014 2.5 tiene sinco codiljos y son p0013 p0014 p2645 y p305f aljun código de estos que aga que no arranque respuesta por favor
Do more excursion vids
Mine has the code good ground good aux battery and no harness chaffing i changed the module and its still not fixed.
Just want to tell thanks p305f I change the auxiliary battery and work it took 2 days to restart is back to normal
They should use a super capacitor setup instead. The lifespan would be much longer (but super caps of course are larger for the same capacity). Even lithium batteries would be a better alternative given the extended lifespan you can get from them now if you only charge them to a maximum of 70-80% their rated capacity.
The manufacturers do this to hopefully pad future revenue streams!
If the code sets when the battery drops to 9.7V, measure the the voltage at the battery while the car does an auto shutoff. 20' of cheap speaker wire, banana plugs, clips for the other end. Or sport for a Power Probe or Chinese knock off.
Hello, I keep having this issue. But my auto stop/start still comes on. Could it be another issue?
Do i need to erase the code manually or does it go away after driving a few miles ??
If it hasn't gone away by now, I would try clearing it manually.
Tengo un Malibú 2014 y tiene estos códigos p0013.p2645,p0014.p00133yp305f no me ensiende aljun código de estos asé que no arranque por fa una respuesta
Failed emissions and have been having issues with the aux battery, so many places that check engine lights for free have no idea about my trunk battery. I need to pass emissions so I’m hoping this works. Tired of all my lights going out when I take off at a stop light
Throw it in neutral
News flash I've changed auxiliary, main battery ,modules and alternator , had wiring ckd ....not by shade tree mechanic but supposedly knowledgeable certified trained chevy mechanics dealership. Car is crap, dealerships fleecing at its best. My daughter has Cruze and had similar problems. Wouldn't suggest either to anyone.
That little AUX12 AGM battery is supposed to have a 36 month free replacement warranty
Respectfully sir, what you said about the auto stop feature being disabled if the fault was present is not true because mine is still working even though I’ve had the code present for quite some time. With me I went to my mechanic & asked that he check the accessory batter & he replaced it. Fine, the code/engine light went away. A couple of days later it was back on again. Then I returned to my mechanic & then he suggested replacing the main battery. Sigh….FINE go ahead & do it. They did it, got the car, coded was gone, check engine light was cleared, everything was good to go. Couple of days later, to my utter amazement, it comes back on AGAIN! So what is it this time? Currently as I am writing to you it’s still on & even my guy doesn’t know what the hell is going on. The 2 NEW batteries can’t be bad, so what’s the problem this time? Went to Advanced Autoparts & they scanned the code & VIOLA! It’s the same old code, now what do I do?
Seriously, this is crazy, but if there’s some other reason that this is happening then I’d appreciate a quick shoutout. Unless of course both new batteries ARE bad but how could that be? With my luck you never know but if you have anything else I could try I’d love to know about it. Thank you.
It sucks he wasn't able to answer you. Did you ever get it fixed? If so please tell me what happened?
Where can I find this battery? I have 2014 Malibu and the engine light turned on. I was told to replace this battery but haven’t had luck finding it 😪
Oreillys or auto zone
I got this code and I tested my batteries and looked at grounds and they said they were good batteries but code is still on. What is my next step? Should I retest the battery in the back while it’s disconnected?
Caleb, I have the same problem. Replaced my rear battery and the check engine is still on. My auto/start still doesn't work. Did you find a solution?
@@eds9460 I was told that it was my alternator
I replaced both batteries and Reseted it. But the light engine come back on..
What was the problem?
What was the problem?
How much does that battery cost.
I've bought a new aux battery light is still on do you know what it could be?
The issue explained in the video causes the engine light to come on not the battery light. But if you find a solution please share. Thanks
Yes my car is not shutting off at lights like it used to and now having trouble starting needs a jump…
Ever get the main battery draining solved?
Hello 👋 I need help with my malibu it has several codes. Can you please reply to me? And helo me out?
So thats gm websites
I bet that was a rental car... no smoking decals are a dead giveaway
My check engine light went away after replacing the aux battery 🙏🏼
Did all that and still have the code.
I am getting water in my floor boards can anybody help please.
check your heater core
Naw thats a known issue. Water comes through tailights in the back. Check your spare tire area..prob lots of water. You will need to seal trunk area. Theres a video on RUclips somewhere
will the light go off by itself if u dont have a scanner tool?
Today my 2014 chevy Malibu was giving me problems. The car shut off once while driving today as well. I took the car to auto zone for a diagnostic and the results were :
(P305F) and (C0800-03) and Secondary DTCs : p0010 & p0011
So I took my car to Schwab for my battery check, they told me that the power problem was from the main battery and the problem wasn’t with the battery in the trunk with their first diagnostic. I took my car back to Schwab after 2 hours of replacing the main battery to make sure the issue was fixed, with another diagnostics. With the second diagnostic, they tell me that the problem is with the battery in my trunk... lol.
Any tips for me to get this issue fully fixed?
2015 and a check engine light? SMH
chevy!
Tommy Siro that’s what I was thinking goodness. I have a 14 and my lights didn’t start coming on until 2018/19
Such a stupid feature.i always shift to Manuel before stopping so this doesn’t happen lol
I change the battery and the engine light is still on???
It might be your battery control module
Did you clear the code?
take negative cable off battery......turn on headlights ..leave 15 minutes..,.reinstall negative post......look for light
I hate the auto stop/start feature just for that reason i want to get rid of this vehicle
ILoveMyAston Martins I just put the car in Manuel as I stop then it won’t turn off.
th