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My air bag system light started coming on a while ago. Sometimes it will come on and stay on, other times it will go off after a while. This usually happens when it starts raining out. I did some research online and found there is a typical problem on my vehicle (2006 Chevrolet Silverado 1500) where the front air bag sensor has issues. This sensor sits in front of the radiator and is sitting out in the breeze, so no doubt why it would have issues with weather. To verify this was the issue, I put my scan tool on the system and verified this is the issue.

My question is, what is the proper way to prepare your vehicle to do maintenance on the SRS (Supplemental Restraint System)? I can imagine the best way is to disconnect the battery and let it sit, or something, for a period of time ... I just don't want the air bags to blow because I didn't prep correctly. Any referenced advice would be appreciated.

Pᴀᴜʟsᴛᴇʀ2
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2 Answers2

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  1. Disconnect the battery terminals.

  2. Unplug srs fuses if any exists in your fuse box.

  3. Unplug the steering wheel airbag its a yellow wire under steering column with a warning label.

  4. Unplug the dashboard air bag if you have one. It's a yellow wire under the dash. Same warning label on the passenger side.

  5. Replace your sensor

  6. Put your fuses back and connect the battery terminals. Test if the sensor is working with the scan tool.

  7. If the sensor is working ok then disconnect your battery again.

  8. Plug back the the yellow air bag wires.

  9. Reconnect the battery.

  10. Use your scan tool to erase all SRS error codes from the PCM.

Advice - make sure that you have a good sensor and its working before reconnecting the airbag yellow wires.

Pᴀᴜʟsᴛᴇʀ2
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Mohammed Moustafa
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  1. Disconnect the battery terminals
  2. Wait at least for 30mn.
  3. Replace your sensor
  4. Before testing be sure to have plugged back all airbags system.
  5. connect the battery terminals. Test if the sensor is working with the scan tool.

Never check sensors with Multimeter.

sancelot
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