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Hi everyone. I am new here. My daughters have a 2005 Honda Civic EX. I purchased in January. It's been a ride but thru the help of this forum and you tube I had everything which was not working working.
Yesterday they told me the check engine light was one. How long I do not know. I looked up how to place a jumper on the under dash OBD2 connector and turn the key on to get the engine light code it was a 41. I don't know if it is the front O2 sensor of the rear.
Then I created another problem(s) I was in a hurry and placed the jumper between the wrong pins. I am sure I placed it between 4 and 16 instead of 4 & 9. Now none of the power locks work or the radio will not turn on. Yes, I heard it from my daughter the radio didn't work. I have checked the radio fuse, the Power Window fuse under the hood all are good.

I should add the master door unlock switch will unlock the doors. Key fobs will not lock or unlock the doors.

Cross posted in the electrical thread also
Thoughts

 
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please dont create duplicate threads

check all of your fuses, and go buy a proper code reader to get the real code, you can get a bluetooth dongle on amazon for like $20 and the torque pro app is $5

 
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I have found a blown fuse but I will need to get a replacement. Thanks for the Amazon lead on the dongle and torquepro app

 
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Did it end up being fuse 9 in the under-hood box?

 
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Definitely under the hood. The blown fuse is either 8 or 9. I’m getting a new one now. Actually misc pack of them.

number 9 it was

thanks for your help!

now to figure out the O2 sensor

 
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Depending on the code you receive for the Primary or Secondary sensors, it will be part number 19 or 20 in this diagram: https://parts.sonshonda.com/showAsse...rimLevel=24777

Your 2005 has the more expensive sensors than the 01-03. Try Amazon or Ebay with the part numbers for better pricing. Stick with OEM Honda sensors for best results.

 
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Thank you