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.
@TheRealChunk602
11 ай бұрын
What did u need to do for the p16D0?
@lindasanchez1250
5 ай бұрын
My car has that code and doesn't start.Both batteries are good but now car won't start. What do I do now?
@pabloortiz945
Ай бұрын
@@lindasanchez1250Its ur dual battery control mudule the black rectangular module on top of battery next to the mega fuse's i got the doorman on amazon 😅 Good luck 🤞🏼
@PaulEllisBIGDATA
Жыл бұрын
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!!!
@MrBubyV
Ай бұрын
Auto mechanic wanted to charge me $280.00 🤦🏽♂️ auto zone had it for $150.00 Walmart had it for $89.00 ……guess what I did. ✅
@jacobeschler1872
2 жыл бұрын
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
@loulou9297
Жыл бұрын
same!
@hellrzr_6158
6 ай бұрын
Same
@latoyajones1545
4 ай бұрын
Same!
@donniev8181
Жыл бұрын
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.
@MrBubyV
Ай бұрын
ALL dealerships charge an arm and a leg for their mechanical services regardless. It’s their only profit towards overhead ,..past selling vehicles 🚗
@dawnyb6871
8 жыл бұрын
You saved me from bringing my car back to the dealership. Money saver... Thanks
@deanreed7196
3 жыл бұрын
Nice job on the video. You explained the issue very well.
@isaacu
2 жыл бұрын
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.
@MYTUBEJOSE
7 жыл бұрын
thanks man come to find out I'm missing a nut on one of my main battery fuses, you're the bomb
@jessiesdad07
8 жыл бұрын
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.
@bigcrowfly
9 жыл бұрын
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.
@aliabdallah102
7 жыл бұрын
bigcrowfly and it's also wearing down the starter a lot more than it'd have if it wasn't designed by idiots.
@joannstafford8169
3 жыл бұрын
@@aliabdallah102 oh yeah add starter.... having it fixed tomorrow
@BobSmith-vj5kz
Жыл бұрын
it's all a fucking racket.
@BlueLineGroovy
2 жыл бұрын
Thank you !!! This battery exchange solved the issue.
@254zero
2 жыл бұрын
Thank you. $120 later and an easy battery swap and the issue is gone
@MattN8tvYT
2 жыл бұрын
This might as well be a recall issue.... smh
@Roberto-gp3yx
Жыл бұрын
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
@ademuyiwaolalekan7557
3 жыл бұрын
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
@nickevers9571
3 жыл бұрын
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?
@tayyslime1608
3 жыл бұрын
Did you ever find the answer to this ?
@nickevers9571
3 жыл бұрын
@@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.
@tayyslime1608
3 жыл бұрын
@@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 .
@nickevers9571
3 жыл бұрын
@@tayyslime1608 The light will not go off until you clear the code.... but the auto-start system will work again.
@MegaHotboy87
2 жыл бұрын
Great question
@Matthew6verses33
Жыл бұрын
Thanks, straight to the point video.
@FredoFit_
4 жыл бұрын
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
@DaRealMk
Жыл бұрын
I'm going through that right now. 2017 Chevy Impala LT 2.5L Ecotec
@Telles1035
Жыл бұрын
Great video. Very well explained and demonstrated as well. Thank you.
@maddenchamp33
Жыл бұрын
Would this cause the main battery to be dead the next day if the aux battery is bad?
@Richard-xc3cw
8 жыл бұрын
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
@MarkWhitelaw-d5n
8 ай бұрын
Thanks...great explanation and it fixed my issue.
@robertkrause6040
3 жыл бұрын
Shame that the access panel patch for the aux battery doesn't match the polarity of the battery inside.
@El_LeChErO91
Жыл бұрын
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.
@fmotukpe5210
Жыл бұрын
Thx so much you really saved me from spending too much money great idea thx
@rogersanchez5775
8 ай бұрын
How much is the battery
@luisgordillo1695
Жыл бұрын
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. 🤘🤘
@BlueRain508
9 ай бұрын
How do you disconnect it?
@luisgordillo1695
8 ай бұрын
@@BlueRain508 just disconnect the negative first then the positive. 👍
@melodylopez7068
4 жыл бұрын
Great tutorial, thanks for the step by step.
@jeffebaugh8827
22 күн бұрын
Could that also cause problems with the My Link radio? It intermittently cuts out....
@terryblue894
2 жыл бұрын
Hello, I keep having this issue. But my auto stop/start still comes on. Could it be another issue?
@micheloscar94
5 ай бұрын
Very good video! Thanks for the help!
@luiszayas-y3i
10 ай бұрын
Thank you for sharing this video
@ericinalaska7648
2 жыл бұрын
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?
@don_cortez9764
4 жыл бұрын
Thank you this saved me time and money
@arenrome6460
7 жыл бұрын
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.
@carlossilva261
4 жыл бұрын
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
@westganighttrain5166
2 жыл бұрын
Did you ever find out what the problem was?
@wendysimms4352
3 жыл бұрын
Thanks worked perfectly i replaced my auxiliary battery
@Odawgfrm310
Ай бұрын
what’s the tool you use ?
@DiegoFlores-ep3co
Жыл бұрын
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?
@orinmangar2333
4 жыл бұрын
You pointed to the incorrect ground. The ground is at G103 which is under the battery by the starter!
@flako7745
Жыл бұрын
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
@flako7745
Жыл бұрын
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.
@MrForthepunx
7 ай бұрын
I been driving like that for years whit the light on, same code p305f, is it safe?
@williyamaustin2106
2 жыл бұрын
Thank you so much. This is big help.
@danielslaughter104
10 ай бұрын
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.
@Tacotrd
10 ай бұрын
I’ve done the same thing, did you figure it out?
@leerivenbark
7 ай бұрын
Any luck...I'm sitting in my car with hood up and multimeter digging into everything
@MaritimerMechanic
6 ай бұрын
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
@GEE93631
26 күн бұрын
Its the battery control module on to top of the main battery its complete out need to replace and problem solved
@juangarcia7355
3 жыл бұрын
Do i need to erase the code manually or does it go away after driving a few miles ??
@dakotatodd9414
Жыл бұрын
If it hasn't gone away by now, I would try clearing it manually.
@matthewbryan3757
3 жыл бұрын
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
@robertmichael.wood.2008
2 жыл бұрын
same bro have you found out the issue ?
@MegaHotboy87
2 жыл бұрын
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?
@MattN8tvYT
2 жыл бұрын
Dang, that blows, gives me an idea on mine.
@Manny-117
3 жыл бұрын
If both batteries are good but the positive terminal and ground to the aux battery were loose could that be the problem?
@alexgardiner3977
4 жыл бұрын
Great video 👍 thank you and keep up the good work
@JetBomb-xx6ye
4 жыл бұрын
Good shit! Perfect video sir p👌🏼
@chevyssboy89
2 жыл бұрын
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
@EliasWolf77
3 жыл бұрын
Had the second battery in the trunk replaced twice already and they only last about two to three months anyone else experience this?
@brooklynant2047
Жыл бұрын
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.
@loulou9297
Жыл бұрын
It sucks he wasn't able to answer you. Did you ever get it fixed? If so please tell me what happened?
@Ocean2753
8 жыл бұрын
Where is a good place to buy that battery? autoparts ? in the web?
@royvilla4505
3 жыл бұрын
Same on the Impala? (2015)
@shahinyoutube2074
3 жыл бұрын
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
@pabloortiz945
Жыл бұрын
Can this cause theft deterrant mode?
@exterminator2141
2 жыл бұрын
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..
@cainpaul08
5 ай бұрын
I bet that was a rental car... no smoking decals are a dead giveaway
@lisadurbin4628
Жыл бұрын
thank u so helpful
@donniev8181
Жыл бұрын
Great video!
@Zack18153
7 ай бұрын
Mine has the code good ground good aux battery and no harness chaffing i changed the module and its still not fixed.
@sandrahhh97
2 жыл бұрын
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 😪
@Randomgoodgirl
2 жыл бұрын
Oreillys or auto zone
@mzc0mpt0n14
4 жыл бұрын
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
@KJ-xw1ms
2 жыл бұрын
Throw it in neutral
@olawuyidare2905
Ай бұрын
Please I'm in Nigeria How can I purchase the auxiliary battery and battery fuse terminal
@ahmedtijanizuma1721
11 күн бұрын
I have them and I wish I can help
@billdurham8477
2 жыл бұрын
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.
@joannstafford8169
3 жыл бұрын
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.
@JAI45624
4 жыл бұрын
Thank you
@kylekanyuck9981
2 жыл бұрын
Thank you your video was very helpful
@juanbultron8971
2 жыл бұрын
Just want to tell thanks p305f I change the auxiliary battery and work it took 2 days to restart is back to normal
@redmen770
Жыл бұрын
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.
@abyssunderground
9 жыл бұрын
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.
@donniev8181
Жыл бұрын
The manufacturers do this to hopefully pad future revenue streams!
@trabucks
3 жыл бұрын
I've bought a new aux battery light is still on do you know what it could be?
@SweetestNya
3 жыл бұрын
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
@caleb2703
2 жыл бұрын
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?
@eds9460
2 жыл бұрын
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?
@Dha504LoverGurlCocoa
Жыл бұрын
@@eds9460 I was told that it was my alternator
@iame5406
Жыл бұрын
I love you thank you😘
@jamiecoleman5067
4 жыл бұрын
Thanks
@fernandopadilla6653
3 жыл бұрын
Tks.
@jima1325
4 жыл бұрын
What is the torque spec on those 8mm nuts in the fuse block?
@mastertek383
8 жыл бұрын
And great video, btw.
@mastertek383
8 жыл бұрын
That little AUX12 AGM battery is supposed to have a 36 month free replacement warranty
@fernaspro
4 жыл бұрын
I replaced both batteries and Reseted it. But the light engine come back on..
@Medgarc94
4 жыл бұрын
What was the problem?
@EliasWolf77
3 жыл бұрын
What was the problem?
@mikew7675
Ай бұрын
I had p16d0 got battery.. fixed the p16d0 code and now I got the p305f code.. this always happens when I have cruise control on.. it starts to bog and I know something is wrong then bam. Low and behold.. code pops up
@teodorotorres4809
4 жыл бұрын
How much does that battery cost.
@misaelcorneliomorales9544
2 жыл бұрын
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
@misaelcorneliomorales9544
2 жыл бұрын
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
@pashapash85
8 ай бұрын
will the light go off by itself if u dont have a scanner tool?
@topgearcelaya
8 жыл бұрын
BERY GOOD
@lzillender
4 жыл бұрын
I change the battery and the engine light is still on???
@hibiscuscoco
4 жыл бұрын
It might be your battery control module
@Renee_Lopez
4 жыл бұрын
Did you clear the code?
@tompowers2475
4 жыл бұрын
take negative cable off battery......turn on headlights ..leave 15 minutes..,.reinstall negative post......look for light
@albertomiranda6402
3 жыл бұрын
Hello 👋 I need help with my malibu it has several codes. Can you please reply to me? And helo me out?
@matiasmagana4518
11 ай бұрын
My check engine light went away after replacing the aux battery 🙏🏼
@Ramzixv
2 жыл бұрын
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?
@MaxAndDaisy0825
4 жыл бұрын
I hate the auto stop/start feature just for that reason i want to get rid of this vehicle
@ericabertagnoli5469
4 жыл бұрын
ILoveMyAston Martins I just put the car in Manuel as I stop then it won’t turn off.
@deandoss2105
3 жыл бұрын
Yes my car is not shutting off at lights like it used to and now having trouble starting needs a jump…
@maddenchamp33
Жыл бұрын
Ever get the main battery draining solved?
@sirot5561
9 жыл бұрын
2015 and a check engine light? SMH
@RicardoPCGamer
8 жыл бұрын
chevy!
@ceecee2352
4 жыл бұрын
Tommy Siro that’s what I was thinking goodness. I have a 14 and my lights didn’t start coming on until 2018/19
@ericabertagnoli5469
4 жыл бұрын
Such a stupid feature.i always shift to Manuel before stopping so this doesn’t happen lol
@ldbenton12
11 ай бұрын
Did all that and still have the code.
@cadene7965
9 жыл бұрын
Do more excursion vids
@djliserio994
4 жыл бұрын
I am getting water in my floor boards can anybody help please.
@juniors9699
4 жыл бұрын
check your heater core
@jimmydajoker
4 жыл бұрын
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 KZitem somewhere
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