Air bag warning ligth staying on

4 things typically cause a misfire compression gas air or spark try a good tune up and check compression

You need the dealer to reset the light.

The air bag warning lamp should work, so that isn't a fault in itself.I'm therefore assuming that the warning indicator lamp is staying on after startup, which would require that you plug in a diagnostic computer and read any fault codes.

Get the fault code.

DTCa LFCb LFC Priority Description B1318 - - Ignition Voltage Below 9 Volts - - 1 RCM Disconnected, Inoperative, or Lost/Low Ignition Feed B1342 24 2 RCM is Faulted B1231 19 3 RCM Crash Data Memory Full B1921 21 4 RCM Bracket Ground Resistance High C1414 29 5 Incorrect Vehicle Identification Code B1887 15 6 Driver Air Bag Circuit Shorted to Ground B1916 15 7 Driver Air Bag Circuit Shorted to Battery or Ignition B1888 16 8 Passenger Air Bag Circuit Shorted to Ground B1925 16 9 Passenger Air Bag Circuit Shorted to Battery or Ignition B1932 32 10 Driver Air Bag Circuit Resistance High B1933 33 11 Passenger Air Bag Circuit Resistance High B1934 34 12 Driver Air Bag Circuit Resistance Low B1935 35 13 Passenger Air Bag Circuit Resistance Low B1901 14 14 Front External Crash Sensor Shorted to Ground B1941 41 15 Front External Crash Sensor Open Circuit or Short to Battery B2444 48 16 Driver Side Crash Sensor Internal Fault B2445 49 17 Passenger Side Crash Sensor Internal Fault B2441 42 18 Driver Side Crash Sensor Mounting Fault B2440 43 19 Passenger Side Crash Sensor Mounting Fault U2017 44 20 Driver Side Crash Sensor Communication Fault U2018 45 21 Passenger Side Crash Sensor Communication Fault B1993 36 22 Driver Side Air Bag Circuit Shorted to Ground B1992 36 24 Driver Side Air Bag Circuit Shorted to Battery or Ignition B1994 36 26 Driver Side Air Bag Circuit Resistance High B1995 36 28 Driver Side Air Bag Circuit Resistance Low B1997 37 23 Passenger Side Air Bag Circuit Shorted to Ground B1996 37 25 Passenger Side Air Bag Circuit Shorted to Battery or Ignition B1998 37 27 Passenger Side Air Bag Circuit Resistance High B1999 37 29 Passenger Side Air Bag Circuit Resistance Low B1892 - 30 Air Bag Tone Warning Indicator Circuit Shorted to Ground or Open B1891 - 31 Air Bag Tone Warning Indicator Circuit Shorted to Battery or Ignition B1869 Tonec 32 Air Bag Indicator Inoperative B1870 Tonec 33 Air Bag Indicator Shorted to Battery - - - No Communication With the Restraints Control Module (RCM)
a DTC: Diagnostic trouble code
b LFC: Lamp fault code, flashed on air bag indicator.

I have ford winstwinstar air bag stay on someone can gimme advice to fixed is dangerous drive the with the air bag ligth on

your security system is activated. try turning the key on let set for 10 minutes turn it off then start. on some models it has to be done 3 times on off on off on off start. 10 minutes each time

The air bag control module self-checks the crash sensors every time the engine is started, so unless the air bag warning light is on the sensors are assumed to be okay. If a fault is detected, the air bag warning light will come on and usually deactivate the air bag system. Using a scan tool, you can pull the trouble code from the system and refer to the appropriate diagnostic chart in a service manual to troubleshoot the problem. Air bag service information can also be found on the vehicle manufacturer's website. Loss of circuit continuity anywhere in the air bag system, or loss of power to the air bag module are common causes of trouble codes.

Because crash sensors are sealed units, you cannot always determine their true condition by outward appearances. Any sensor that is obviously sustained physical damage as a result of a collision or other damage should be replaced. But what about ones that look okay? Most electromechanical crash sensors are designed to be electrically open in their rest condition. So one quick check you can perform is to check for continuity with an ohmmeter. If the sensor contacts are closed, it has not reset and should be replaced.

CAUTION! Do not attempt to check or replace any crash sensor unless the air bag module has first been deactivated (or deployed as a result of an accident). This can be done by unplugging the air bag connector at the base of the steering column and waiting at least 10 minutes or longer depending on the application (always refer to a service manual for the proper deactivation and removal procedure).

Usually it is the plug and socket under the seats, they get unrelliable with use of the seat, feel underneath the front seats, or look if you can and see if they are looking OK if so you will need to unplug them and tighten the terminals with a really small screwdriver, be gentle, if this works get a nylon cable tie around them to stop the strain on the terminals when the seat moves.

In most cases this problem is caused by the rotating ribbon circuit contact under the steering wheel having a broken filament, the part is known as a clock spring contact, u will need to properly disarm the airbag and remove the steering wheel to access the part. WARNING: Failure to follow factory Airbag disarming protocol can result in an unexpected Airbag deployment and possible serious personnel injury or death.

is this van new for you ? is it a status light letting you know that the airbag is loaded and ready for anypassenger that you have in your van ? do you have a key that you can turn it off in most vans there is an option to turn air bag on or off depending on size or opinion of passenger . im thinking that if its a status light its okay to be on letting you know its ready for opperation . take a look at your owners manual airbag section . and if it does turn out to be a warning malfunction indicator please dont waste time take it to your local dealer and have it checked out .hope this information helps good luck