2016 Chevy 4500 "Service Airbag" & No Start???
Many thanks to RV Owner @RockFishon for troubleshooting a pesty electrical problem. I'm just sharing the details.
"I have a 2015 Chevy Express 4500 RV cutaway for a Coachmen Freelander 21QB with a little over 18,000 miles.
Symptom - When trying to start engine, turn key , dash goes dark and nothing happens, the engine does not turn over. Stop turning key and "SERVICE AIRBAG" is displayed and dash chimes 33 times."
Here's the full thread:
https://www.gmtruckclub.com/threads/2015-chevy-express-4500-service-airbag-and-no-start.1455158/
Bottom line: There's a bad solenoid called the Run/Crank relay, and when it goes out your engine won't crank and you may see the "Service Airbag" message on your console.
Solution is to buy a replacement from Napa or Autozone. The problem solenoid is #15 in the fusebox under the hood on the driver's side. You can try replacing it with the A/C relay #40.
Bonus: Here's a diagram of the fuse box layout.
https://www.autogenius.info/wp-content/uploads/2018/01/chevrolet-express-fuse-box-engine-compartment-2011.jpg
I hope this helps someone as much as it saved me an expensive tow job.
Pay it Forward,
-Grouchy
"I have a 2015 Chevy Express 4500 RV cutaway for a Coachmen Freelander 21QB with a little over 18,000 miles.
Symptom - When trying to start engine, turn key , dash goes dark and nothing happens, the engine does not turn over. Stop turning key and "SERVICE AIRBAG" is displayed and dash chimes 33 times."
Here's the full thread:
https://www.gmtruckclub.com/threads/2015-chevy-express-4500-service-airbag-and-no-start.1455158/
Bottom line: There's a bad solenoid called the Run/Crank relay, and when it goes out your engine won't crank and you may see the "Service Airbag" message on your console.
Solution is to buy a replacement from Napa or Autozone. The problem solenoid is #15 in the fusebox under the hood on the driver's side. You can try replacing it with the A/C relay #40.
Bonus: Here's a diagram of the fuse box layout.
https://www.autogenius.info/wp-content/uploads/2018/01/chevrolet-express-fuse-box-engine-compartment-2011.jpg
I hope this helps someone as much as it saved me an expensive tow job.
Pay it Forward,
-Grouchy
