need help: Airbag Error Code 18

Posted by: Panzerbulldog

need help: Airbag Error Code 18 - 06/01/21 03:09 AM

my second post smile request for help.
The airbag light in the tachometer-unit on my P71 is lightning permament.
Turning the ignition ON, the light blinks one time and then 8 times, so its error 18. As far as i know it could be the Airbaglight ond the passenger side in the dash, but this works. Another problem could be the crash sensor on the drivers side. I got a "new" crashsensor from "CROWNRICK" and replaced it.
But it didn´t bring the result i was hoping for. The airbags light is still lightning.
Maybe the Airbag controlunit is broken?
Anybody here who had the same problem or knows whats wrong?
thanks for your help
greetings from germany
Posted by: Davidzq

Re: need help: Airbag Error Code 18 - 06/01/21 08:44 AM

1-8 is Passenger Airbag Disabled warning lamp circuit failure.

How is the light behaving? It should be on for only a short time with passenger seat empty, then go out.
It should be on all the time if there is 30-50lbs of weight in passenger seat.
Should be off if more than 50lbs in passenger seat.
Posted by: Panzerbulldog

Re: need help: Airbag Error Code 18 - 06/01/21 09:39 AM

thanks, correct. The light on the pasenger side is on for a short time after start with an empty seat and then goes out.

Is there a switch or something under the passenger seat which failed?
Posted by: Davidzq

Re: need help: Airbag Error Code 18 - 06/01/21 12:42 PM

The code is specific to the light. All other components have their own codes.

It's actually pretty common for the lights to fail...They have a specific resistance value to them to monitor the circuit, yours night be starting to fail. I'd try throwing in a junkyard one just to test.
Posted by: Panzerbulldog

Re: need help: Airbag Error Code 18 - 06/02/21 03:25 AM

Hi David,
i have another Crown vic (bad condition, paint is crab) and tonight i couldn´t sleep so i took the light of em out and put it in my dailydriver. The same error frown