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Old 03-14-2010, 12:59 PM   #1
toicy4ya
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Default Green Immobilizer Key Keeps Blinking....

Sup Everyone,

I have been having this problem intermitently for a few months now on my 2000 accord ex v6. The green immobilizer key on the dashboard keeps blinking which is preventing my car from starting. Initially i thought it was the alarm due to the reason that it has a remote start. However when i disabled the alarm the immobilizer light kept blinking. Then i thought it was the battery. I took the battery and had it tested at both RS Strauss and Pep Boys. Both confirmed the battery was no good. For a moment i thought this was the reason the immobilizer light kept blinking. I ran to sears and picked up a gold die hard battery and installed it. Still same problem! I tried three different keys just to make sure it wasnt a bad key but the light still keeps blinking. The car was starting up fine for a while then the problem occured two weeks ago after a bad snow storm in which the car sat for two weeks. After the snow storm i gave the car a boost and it turned on without a problem. Each morning for a week I would turn on the car in the morning just to make sure it started. Then this weekend we had a bad rain storm which lasted for three days and the problem re-occured. The light would not stop blinking. I feel this is the main reason my car does not start, My question now is what causes this light to blink, besides faulty keys or battery which we ruled out?

I thought maybe the main relay as i heard these cars suffer from that but would a bad main relay cause the immobilizer light to blink?

Has anyone ever had their immobilizer light keep blinking?
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Old 03-14-2010, 01:34 PM   #2
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Default Re: Green Immobilizer Key Keeps Blinking....

You might have to bite the bullet and bring in to have the dealer look at it. It could be the immobilizer receiver, ECM or something still related to the battery connections. I would check the battery connections first, even check the fuses under the hood and under the dash to rule everything else out first.

Here is a TSB to give you a little more info. regarding the immobilizer system:

http://www.tegger.com/hondafaq/tsb/accord/x97-058e.pdf
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Old 03-15-2010, 02:50 AM   #3
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Default Re: Green Immobilizer Key Keeps Blinking....

I thoroughly checked the battery terminal connections yesterday along with the fuses under the hood and on the side of the dashboard. Thanks for the PDF i will download and review it.

Anyone else ever experience this problem?
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Old 03-16-2010, 10:09 AM   #4
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Default Re: Green Immobilizer Key Keeps Blinking....

redbull-1,

Thanks for the PDF it offered some insightful information. However it didnt have any troubleshooting scenarios.

Is anyone experiencing the same problem?
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Old 03-18-2010, 04:04 PM   #5
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Default Re: Green Immobilizer Key Keeps Blinking....

So i tried to tap on the main relay because i heard if the relay is bad sometimes this will allow the car to start. However when i turn the ignition the car is completely dead. The battery appears as if its completely drained. This is a brand new Die Hard Battery i purchased less than a week ago. When i turn the ignition switch the dashboard flickers then dies. Im at the end of my wits. Can someone offer some advice?
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Old 03-18-2010, 05:38 PM   #6
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Default Re: Green Immobilizer Key Keeps Blinking....

Have the alternator/charging system tested. It may not be recharging your battery or you may have a parasitic drain somewhere that is draining your battery.

On a side note, Sears Die Hard batteries are mainly hype. Sears doesn't make their own batteries. Many times people are overpaying for what they perceive from advertisement to be a superior battery. There are like only three main battery manufacturers. Johnson Controls is one of the better manufacturers. Researching who supplies the battery to the store, etc. is the key.
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Old 02-28-2011, 12:40 PM   #7
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Default Re: Green Immobilizer Key Keeps Blinking....

Sup guys,

Im still having the same problem. I recently found out that my car has a parasitic draw. I guess my question is, could a parasitic Drain cause the Green Immobilizer Key to Keep Blinking if the car sits for a couple of days?
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Old 11-06-2012, 02:15 AM   #8
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Default Re: Green Immobilizer Key Keeps Blinking....

My honda accord has problem for starting engine. Green key blinking. I need an advice. thanks
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Old 11-06-2012, 02:18 AM   #9
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Default Re: Green Immobilizer Key Keeps Blinking....

continue from my first message, My key some kind of card form, and I was disconnect my battery for near two months for waiting some spare parts. It is the reason the immobilizer doesn't recognize my key card or due to ECU error?????
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Old 11-06-2012, 02:21 AM   #10
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Default Re: Green Immobilizer Key Keeps Blinking....

Full story was, my car was driven flooded area and engine stop. Engine has to repair, parts delay. After engine re-installed and engine cannot start due to the green key was shown. Need urgent advice.
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Old 11-06-2012, 08:34 AM   #11
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Default Re: Green Immobilizer Key Keeps Blinking....

Immobilizer indicator is controlled thru immobilizer receiver, PCM, or driver's side multiplex control unit. Either could be bad or you have a lead shorted to ground. Whatever is causing the green light to flash is the reason your battery is draining.
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Last edited by jdowen2; 11-06-2012 at 08:39 AM. Reason: added clarification
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battery, blinking, car, civic, flashes, flashing, honda, immobilizer, imobilizer, key, light, main, pilot, rain, relay, rsx, times, troubleshooting

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