2007 Honda Civic engine fan not functioning/ dashboard ligh

2007 HONDA CIVIC
26,000 MILES • 4 CYL • 2WD • AUTOMATIC
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FLOODSUCKS
  • MEMBER
  • 1 POST
hi. my honda civic matic got flooded up to its dashboard. we followed that necessary protocols for flooded cars (dont start, change oils, etc). The car was able to start and run BUT the lcd on the dashboard that shows the temperature guage, speedometer and gas guage is blank and is blinking a red light (it was originally yellow). we thought it was a minor probllem so we drove it around and it overheated, turns out that the engine fan is not functioning at all (but the fan linked withe A/C is functioning). my dad said the control that transmits signals for the fan to operate when the engine temperature is up is busted. had it checked with a mechanic/electrician and he said the IMMOBILIZER has to be replaced. I'm confused.. arent immobilizers for alarms and security purposes??? What do you guys think? and what does the blinking red light means?..Please i need a more expert advise. Thank a lot.
PS. btw, we had the fan connected directly to the battery and it worked. just doesnt work when driving and is not attached to battery anymore
Oct 16, 2009 at 9:34 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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MIKE H R
  • CAR REPAIR CONTRIBUTOR
  • 3,094 POSTS
The immobilizer controls the guages and anti theft device. I had worked in a auto auction some time ago and had seen problems with vehicles that were in the water. The water had gotten into all the electrical compodents and it took some time to get things dried out. Compodents may look dry but at times were still wet inside causing faulty readings. Even then at times there were problems. Here is a diagram of the imobilizer system I hope it helps


https://images.2carpros.com/forum/automotive_pictures/54223_honda_immobilizer_system_1.jpg

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Aug 9, 2019 at 5:46 PM
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