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Troubleshooting: Front impact sensors on 2009 Civic shows codes..solutions?

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Old 09-17-2018, 03:03 PM
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Default Troubleshooting: Front impact sensors on 2009 Civic shows codes..solutions?

Civic section seems dead so I thought I’d get some
good input here.

Just picked up a 2009 Civic LX-S automatic with 149,000 miles for a commuter yesterday. No cel or srs lights on the dash and both turn on and off at start up.

I scanned all modules with my blue driver obd scanner and got no signal from front left and front right impact sensors. 41-11 and 41-12 I think? As well as the weight sensor on drivers side front seat is also giving me a code but the srs light is off.

I looked under the front bumper and saw both impact sensors mounted and plugged in. Airbag recall was done at the Honda dealer. Car was totaled on way to first dealer before it was ever first sold, very minor repair, I can see the repair and believe it was totaled because it was a new car not because it was a bad accident, have the Carfax showing total loss before dealer took delivery.

any ideas on getting the front impact sensors to work? Wiring looks good and they are plugged in tightly. I was reading and searching that they can fail, can i just unplug and bolt in a new one after having the battery disconnected for 30-60 minutes? Can’t clear the code because until i get signal from impact sensors.
thanks!
Old 09-19-2018, 10:50 AM
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Default re: Troubleshooting: Front impact sensors on 2009 Civic shows codes..solutions?

Originally Posted by ian1006
Civic section seems dead so I thought I’d get some
good input here.

Car forums are dead in general, now days....

.
Originally Posted by ian1006

Just picked up a 2009 Civic LX-S automatic with 149,000 miles for a commuter yesterday. No cel or srs lights on the dash and both turn on and off at start up.

I scanned all modules with my blue driver obd scanner and got no signal from front left and front right impact sensors. 41-11 and 41-12 I think? As well as the weight sensor on drivers side front seat is also giving me a code but the srs light is off.

I looked under the front bumper and saw both impact sensors mounted and plugged in. Airbag recall was done at the Honda dealer. Car was totaled on way to first dealer before it was ever first sold, very minor repair, I can see the repair and believe it was totaled because it was a new car not because it was a bad accident, have the Carfax showing total loss before dealer took delivery.

any ideas on getting the front impact sensors to work? Wiring looks good and they are plugged in tightly. I was reading and searching that they can fail, can i just unplug and bolt in a new one after having the battery disconnected for 30-60 minutes? Can’t clear the code because until i get signal from impact sensors.
thanks!
The vehicle needs to be scanned with a proper scan tool. generic information(which is all you're getting from your little do-dad) isnt enough to properly diag this car. The code is just the tip of the iceberg,you need the data.

Also SRS light should turn on everytime you turn the key on.......
Old 09-19-2018, 01:37 PM
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Default re: Troubleshooting: Front impact sensors on 2009 Civic shows codes..solutions?

Yes srs light comes on then turns off after a couple seconds.
Old 10-15-2020, 04:44 AM
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Default Re: Troubleshooting: Front impact sensors on 2009 Civic shows codes..solutions?

Hi, my 2009 civic has the exact same problems: 41-11 and 42-11. Have you figured out the root cause yet?
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