I have an airbag light flashing code 42. Best I can tell that should be a problem with the driver side front crash sensor. I have heard that they can get corroded at the plug and that I should unplug it and clean it. Problem is, I can't find it. It isn't where I find most (along the core suppport near the radiator) or along the frame rail. I was told it might be behind the trim at the A pillar but no luck there. The body shop I checked with has the same drawing that I found on the Internet.....showing a frontal crash sensor and pointing to the front end. Not too helpful. They checked it over for about 20 minutes and gave up. Can anyone help me with a specific location (the more specific the better) for this sensor?

Thanks!

 

I tried cleaning and checking all of the wiring connectors under each front seat without any luck. I had read that some of the wires are too short and are damaged at the connectors, causing an open circuit. I purchased the front airbag sensor, but was unable to locate where it was, so I went back to the dealer parts department. I will have to take the front bumper cover off and hopefully, it will be in plain view. I plan to give it a go tomorrow.

drpugh

 

I found and replaced the front airbag sensor, after disconnecting the battery and waiting for 15 minutes before doing anything to the sensor. I found the sensor by looking in the area through and above the front license plate holder. Put some light in that area and you will see it. The bolt that held the sensor to the mounting bracket was so rusted that it had expanded enough to crack the sensor, allowing moisture to get in and cease it's functioning. Hope this helps you.

 

I had to get the car up on a lift before I found the sensor, right where you describe. The bolt that goes through the sensor body also caused the sensor to crack in half. (Nice engineeering to place a cheap steel bolt through an electronic part and mount it where it will get a frequent salt water bath). After replacing the sensor I am good to go.

 

thanks i see it just above the front license thru an opening there..its all full of rust. Can I install a new one myself? Any special instructions other than disconnect the battery first?