battery

  1. P16E3 code

    I recently Tried to start up my car the other day but wouldn’t start i would Have power but couldn’t get the car to start even after jumping it, i had It towed to my dealership and the found a P16E3 code they reprogrammed the key and ever since it’s been able to start, i checked The battery...
  2. Battery issues

    I have a 2017 Honda Civic EX-T coupe. I'm on my third battery currently and something is draining my battery. I bought this battery last year (April 9th, 2023) and so it hasn't even been a year yet, so I don't think the battery should be dead. We jumped it and it's starting and running, but when...
  3. 2020 civic Head lights dimming in the morning

    2020 Civic 2.0L Canadian models Just noticed few weeks ago, my lights dimming little bit and coming back to normal bright when I try to slow down to stop at the stop sign or red light in the morning (Cold engine temp condition), happens every morning now when I try to fully stop like right...
  4. Battery/Hondata tune

    Currently tuned on Hondata and I’ve been considering changing out my battery to something lighter. Question is, will disconnecting the battery erase my current tune or is the tune locked in after the initial overwrite? Coming from older style of Hondata i.e Kpro/S300 where the software is...
  5. Check Charging System warning

    Hi all, I got my battery replaced today but unfortunately the mechanic broke a sensor attached on the battery. Since then my Check Charging System warning light has been on. Does anyone know what this sensor is and if its safe to continue to drive until I get it fixed next week? I’m afraid...
  6. Car Failed To Start

    I have a 2018 FBO Si with Phearable's "race" tune on ktuner V2. I'm just curious if anyone has had this problem before. I was leaving work and got into my car. When I unlocked the doors, all of the electrical systems turned on normally (headlights, start up animation, ktuner V2, etc). I pushed...
  7. Car not turning off after tints

    Hi, I just got tints for my 2020 civic hatchback sport. But right after I got my car back I noticed that an error message showed up saying “keyless start system problem” and because of that my card electric system won’t turn off(audio screen). Also can’t lock my car as well after I turn it off...
  8. Help Battery disconnect warning message

    I disconnected my battery to install my clutch the drive carefully message is gone but now I have warning lights for the power steering, abs, saying that there is a problem with the systems is this just a simple code delete or do I need to have Honda hook up their scanners.
  9. Immobilizer Issue

    Hi, I have a Canadian 2017 Civic Si. My battery went dead so I replaced it with a new one. Did the procedure for Canadian models as suggested and what was on the dash. Brake + Clutch + push start with fob. Car will not turn over, immobilizer light blinking red. I've tried both key fobs. I've...
  10. Converting 51R to H5 battery

    Documenting my attempt at buying stock Honda parts from Type-R or other 10th gen models with the larger H5 battery. My original battery is nearing 5 years old and I'd like to upsize for the replacement. I welcome any input. The mounting points for the larger battery are different so it is not...
  11. 2020 civic lx headlight dimming with lower power sub setup?

    Hey all, I’ve been lurking here for a while especially for help when installing my sub into my civic I got in November. So I’m wondering if anybody else is having the same issue as me. For reference I have a 2020 civic lx (Canada) and I installed a single 12 inch JL audio subwoofer(4 ohms)...
  12. Battery Tray Holds Water

    I changed out the battery on the Sport Hatchback and the Battery Tray held quite a bit of water in it from last weeks rain. Did anyone else experience this when they changed out the battery? To prevent this should I: 1)Drill small hole to drain? Looks like it sits over transmission? Or 2)Leave...
  13. Relation between voltage on battery terminals, honda hack and cigarette lighter

    I found that voltage reported by honda hack is very different to voltage measured directly on battery terminals. With engine off voltage was 12.48V and honda hack reported voltage between 11.7 and 12.1V. Voltage on cigarette lighter was 12.1V. Are values reported by honda hack (value from ecu...
  14. Ktuner Battery Dead, Warnings Flashing

    My battery is dead because of cold weather. Even i couldn't open trunk and locks. After i start the car now, traction and skid warnings are always on, can't turn it off. Is it because of Ktuner? How can i make it normal? Should i flash ktuner again?
  15. Need help with dead battery

    Hey guys, I need some help with my battery. My car is a 2018 CTR bought back in April 2018, i have installed a sirimoto flex fuel kit, and i have the gauge set under the hood. But, i never split the wire to the MAF Sensor, just put it in a fuse slot in the fuse box labelled "32" in the top...
  16. Dashcam Parking Mode - Battery Issue?

    Wondering if any of you folks have experienced this sort of issue with a hardwired dashcam setup. My girlfriend's 2019 Civic's battery voltage is dropping from ~14v to ~12.1v within 30 seconds of the car shutting off. This is causing problems with her hardwired dashcam setup and the dealership...
  17. Dammit, dead battery on 2019?!?!

    My '19 hatch is not even a year old yet and seemingly outta now where, the battery died. Roadside came out and jumped it and now I'm sitting at the dealership waiting on a new battery. The service guy acted like, "yep, another dead battery replacement" when I told him what happened. What is up...
  18. Stock battery enough power for 1800rms sub?

    Recently, I upgraded my previous subs with a whole new system. 2 Kicker L7 Q class squares. They push 1800rms and 3600peak. My lights dim and flash when the beat hits every single time. My subs also sound very weird, some songs will hit hard then the next song that’s supposed to hit super hard...
  19. OEM Updated Canadian Battery - 2016 - 2018 Civic (All models)

    I should say all models except for the Hybrid. I wanted to change my battery before winter. I tried Costco and Canadian Tire group 35 batteries, but my stock battery hold downs wouldn't fit. I didn't want to bother buying a bunch of extra parts to make it fit, So I figured I'll just buy it from...
  20. Smart Key Fob dead after attempted battery replacement

    Both of my key fobs were low on battery so I attempted to replace the battery on both. I used the same type of battery as it had before and installed it correctly with brand new batteries but now the fob does not work at all. The red light does not illuminate when buttons are pressed. I tried...


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