Honda No Start Flashing Green Key On Dash - Easy Fix!

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HELPFUL LINNKS:
Transmission fluid on a 2007 Honda Pilot.
—Torque specs- Drain plug 36 ft-lbs....fill plug 33ft-lbs
MATERIALS USED:

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After replacing the battery on my vehicle the car would not start. The problem is that in the process of changing the battery a fuse was blown. The fuse was in charge of the immobilization system.That is the system that is designed to read the ignition key and make sure that it is in fact the proper key for the vehicle. This is part of the antitheft system. Vehicles can blow fuses for several reasons. It could be a short in the wiring, moisture issues, or very commonly after working on your vehicle. Replacing the battery, replacing the starter, replacing the alternator, replacing the fuel pump, etc.
Honda no start flashing green key on dash easy fix key – immobilizer control unit issue

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Honda key problem, honda car not starting, emergency start, valet key, valet key to start car, key fob,

[collaborationstation]

Thanks! Here's a few bucks to say thanks for the video!

[fessorx]

2006, Honda Element. The car doesn't start. The blinking green key comes on and doesn't go off, I checked the under-hood fuse box. #6 ECU 15 amp fuse was bad. Replacement fixed the issue.
Thank you all for your time and post. This all helped me to diagnose the issue. I truly appreciate this.

[NVChocolate]

WOW...you are amazing. My daughter was trying to bling out her car and placed a bling ring around the ignition...car would start and turn off. Went so far to call AAA for a jump. So, when she told me she placed the bling ring on the car that morning, did my research and found your video. Removed the bling ring and voila...car starts with no issue.
JESUS bless you...you came through for us.

[racheldrapeau]

Thank you so much!!! I got stranded outside of my city (it's 9:15pm and dark as hell) for a class I was teaching that just ended. It's cold and pouring rain, I've had a rough fucking day and I'm so relieved I didn't have to get a $300 tow and that my car works again. 🙏🙏🙏🙏

[mikerosenberg]

Thanks so much for posting this. The vehicle locksmith, after carrying out a diagnostic test, told me the ECU had failed and would cost £2k+ to repair and my car was probably a write-off! Checked the fuse, it wasn’t blown but tarnished. A quick clean, popped it back in and bingo, it started!

[HNY._.IFFCAL]

this happened to me at the store and immediately I tried my valet key (normal non remote key [a.k.a. backup key]), and I fixed it asap in about 30 seconds and never had a problem again thank God. have a good day

[jonesnjake]

I literally spent the last two hours trying to figure out why my Pilot wouldn’t start. I thought I checked every fuse and relay until I was about to give up. I turn the car on and see the green key flashing and then found your video. Thanks for saving my sanity. Great video.

[terenasaldana]

Dude, you just helped me stranded on lunch break away from work, in my daughter's 2009 honda civic. You saved the day Thank You so much! It was the fuse for the chip reader...(which I never knew)
Someone had put a 7.5 in a 10 slot & it was toasted!
Thank You Again!

[shanefinneran]

Spot on.
Tested every fuse, all checked out. Pulled the ACG S, cleaned and plugged back in. All is working, must have just been loose.
Never would have found this otherwise.

Saved me $$ and headache. Have a beer on me.

[marlenebibart]

This works. Just had a mechanic looked at my 04 pilot an they was trying to change my fuel pump but thank to this video I just saved money I didn't have to spend

[ppalm]

I have a 2014 Honda Pilot and found your vid. I checked the fuse and even got a brand new one and didn't solve problem. Then I decided to try jumping the battery with my other car. BAM! It started. I immediately replaced the battery.
So my car gets the GREEN KEY symbol when battery has failed.
So, there's something people can try. But thanks for posting. It helps to consider all possibilities

[jkia]

You are still saving owners money. I misread the obd 4 to 9 jumper and blew the same fuse as yours. What was puzzling about it was the engine acted like it wasn’t getting fuel. It would crank over just fine. It had nothing to do with a fuel pump relay or a broken key fob. Thanks again for sharing!!

[AhneCR]

I am up in the cold north and my dear little 2004 Honda with very few miles, turned over but wouldn't catch. I saw the flashing green light, looked it up in the manual, called the helpful Honda dealership and they said it was electrical and needed to be reprogrammed. Called CAA to have it towed as it was in the way of the plow's route. Then, I thought I'd look it up and see if there was any video on it. Sure enough, I found this one and even though my Honda is not the same year and the fuse boxes are not in the same location, I pulled a few things off and found it. Used my keys to pull out the 15 fuse where it had the initials for the fuel immobilizer, or at least I guessed something to that effect. With two keys, I pried the fuse in question out and easily accessed the spare, popped it in and the car turned over like a charm. Thank you "Check It Out"! I cancelled CAA and saved myself who knows how much as the dealership didn't have to look at it!

[Mtktnstrends]

I was having the same problem today on my Honda Freed. Fortunately my 8yrs old son had told me that I left the dashboard lights on and he put them off. I noticed the battery might have gone down. I recharged it and the problem was solved. Though your video is very informative. A thumbs up from Kenya.

[r-dz-nyc]

Thank you so much, ,you’re brillant
I got stuck under rain and temperature bellow 37, and my accord doesn’t stop honking for 5 minutes, I couldn’t do nothing, ,the key signe shows on dashboard, car battery almost dead until I checked your video and I changed the fuse like you said and suddenly the car is on❤❤❤❤..
Much love brother ..you the best
Big shout out from nyc

[natesambo]

We had this happen on our 2008 Honda Pilot on one of the keys, but it was starting fine with the Honda factory key and keyfob. What had happened was, we ordered a new keyfob shell for the broken keyfob and it turns out there is a little transponder chip that you have to transfer to the new keyfob. This video helped me track that down so thanks!

[ryanfox]

You are a the man! Thank you so much. I haven’t figured out what tripped the fuse yet, but this video helped me get home when I was stranded 3 hours away in a podunk town at 3 AM with my 13 year old daughter. We made it home. Now I’m going to go and try to figure out the cause/problem. I can’t thank you enough.

[Jtfreeze]

Omg thank you 🙏🏿 I just purchased a 2006 Honda Pilot and I went to leave the gas station and it wasn’t starting up the car sounded good and was running quietly and perfect then I noticed the green light flashing key symbol And immediately looked it up 30 minutes later after loosing my little fuse pullers …. I finally was able to get it to turn over to bad I was only sold one key with this vehicle thank you anyway you save me a lot of trouble I haven’t renewed my AAA yet so I don’t know what I would’ve done

[jasonw]

My daughter put a diamond key ring decoration on the key area of the ignition. Well, not familiar with the flashing green key this stumped me for a few days. Thanks to your video i can out, took off the diamond decoration and now car is running!

[bylomax]

Dude I'm so glad you posted this video. 🎉🎉🎉💯
I the green key symbol was the answer. I had trouble before when my key fob battery. Went dead. After I locked the car. I replaced the battery and the car started.
My key fob is broke. So starting the car with the key and not the fob in hand the car went out start .
After watching your video I understand now how the security system works thank you so much.