Air Bag Light Stays On?
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Laughing Gas
Joined: Aug 2003
Posts: 836
Likes: 9
Air Bag Light Stays On?
On my 1999 F250 my air bag light is staying on. It flashes once then five more times several times then stays on .
From what I have found that is telling me it's code 15. I have seen several error codes in research with code 27 being one of the most common.
My passenger air bag light is working and it does cycle and go out.
I should say recently I added power heated mirrors and tapped into wires under the dash for running light, left and right turn and a power directly do the fuse panel fuse 27 for customer access.
I tested the wires I tapped into for running, left and right turn and they were the correct wires.
I checked the fuses in the fuse panels related to the air bags and they are good.?
From what I have found that is telling me it's code 15. I have seen several error codes in research with code 27 being one of the most common.
My passenger air bag light is working and it does cycle and go out.
I should say recently I added power heated mirrors and tapped into wires under the dash for running light, left and right turn and a power directly do the fuse panel fuse 27 for customer access.
I tested the wires I tapped into for running, left and right turn and they were the correct wires.
I checked the fuses in the fuse panels related to the air bags and they are good.?
Tuned
Joined: Nov 2018
Posts: 292
Likes: 64
From: PA
On my 1999 F250 my air bag light is staying on. It flashes once then five more times several times then stays on .
From what I have found that is telling me it's code 15. I have seen several error codes in research with code 27 being one of the most common.
My passenger air bag light is working and it does cycle and go out.
I should say recently I added power heated mirrors and tapped into wires under the dash for running light, left and right turn and a power directly do the fuse panel fuse 27 for customer access.
I tested the wires I tapped into for running, left and right turn and they were the correct wires.
I checked the fuses in the fuse panels related to the air bags and they are good.?
From what I have found that is telling me it's code 15. I have seen several error codes in research with code 27 being one of the most common.
My passenger air bag light is working and it does cycle and go out.
I should say recently I added power heated mirrors and tapped into wires under the dash for running light, left and right turn and a power directly do the fuse panel fuse 27 for customer access.
I tested the wires I tapped into for running, left and right turn and they were the correct wires.
I checked the fuses in the fuse panels related to the air bags and they are good.?
This may be dumb, but did you check under the driver's seat to see if your AIRBAG electrical connection is secure and connected properly ?
If you somehow disconnected that connection directly under the driver's seat, your air bag light will stay on. Ask me how I know.
Got Data?
Joined: Dec 2012
Posts: 4,251
Likes: 1,383
From: Lake Stevens, WA
Do you get any other codes when you read them with a scanner? There might be some "Bxxxx" codes that can help guide us in addition to that code 15 from the airbag light itself.
From a post out of the thread below:
DTC: Diagnostic trouble code, retrieved using scan tool.
LFC: Lamp fault code, flashed on air bag indicator.
Tone will sound only if additional DTCs are present
Here are the airbag codes
LFC
DTC-----LFC-----PRIORITY-------DESCRIPTION
B1231---19----------3-----------RCM Crash Data Memory Full
B1342---24----------2-----------RCM is Faulted
B1869---Tone c------—
B1870---Tone c------—
B1871---25 ---------14----------Passenger Air Bag Deactivation (PAD) Switch/Module Fault
B1877---46----------24----------Driver Pretensioner Circuit Resistance High
B1878---17----------26----------Driver Pretensioner Circuit Shorted to Battery or Ignition
B1879---17----------26----------Driver Pretensioner Circuit Shorted to Ground
B1881---47----------25----------Passenger Pretensioner Circuit Resistance High
B1882---18----------27----------Passenger Pretensioner Circuit Shorted to Battery or Ignition
B1883---18----------27----------Passenger Pretensioner Circuit Shorted to Ground
B1884---27----------15----------Passenger Air Bag Deactivation (PAD) Lamp Inoperative
B1885---46----------24----------Driver Pretensioner Circuit Resistance Low
B1886---47----------25----------Passenger Pretensioner Circuit Resistance Low
B1887---15-----------6----------Driver Air Bag Circuit Shorted to Ground
B1888---16-----------7----------Passenger Air Bag Circuit Shorted to Ground
B1890---27-----------15---------Passenger Air Bag Deactivation (PAD) Warning Lamp Shorted To Ground
B1891---—-----------------------Air Bag Tone Warning Indicator Circuit Shorted to Battery or Ignition
B1892---—------------—---------Air Bag Tone Warning Indicator Circuit Shorted to Ground or Open
B1916---15------------6----------Driver Air Bag Circuit Shorted to Battery or Ignition
B1921---21------------4----------RCM Bracket Ground Resistance High
B1925---16------------7----------Passenger Air Bag Circuit Shorted to Battery or Ignition
B1932---32------------8----------Driver Air Bag Circuit Resistance High
B1933---33------------9----------Passenger Air Bag Circuit Resistance High
B1934---34------------10---------Driver Air Bag Circuit Resistance Low
B1935---35------------11---------Passenger Air Bag Circuit Resistance Low
C1414---29------------5----------Incorrect Vehicle ID
----------------------------------No Communication with the Restraints Control Module (RCM)
https://www.ford-trucks.com/forums/4...-stays-on.html
From a post out of the thread below:
DTC: Diagnostic trouble code, retrieved using scan tool.
LFC: Lamp fault code, flashed on air bag indicator.
Tone will sound only if additional DTCs are present
Here are the airbag codes
LFC
DTC-----LFC-----PRIORITY-------DESCRIPTION
B1231---19----------3-----------RCM Crash Data Memory Full
B1342---24----------2-----------RCM is Faulted
B1869---Tone c------—
B1870---Tone c------—
B1871---25 ---------14----------Passenger Air Bag Deactivation (PAD) Switch/Module Fault
B1877---46----------24----------Driver Pretensioner Circuit Resistance High
B1878---17----------26----------Driver Pretensioner Circuit Shorted to Battery or Ignition
B1879---17----------26----------Driver Pretensioner Circuit Shorted to Ground
B1881---47----------25----------Passenger Pretensioner Circuit Resistance High
B1882---18----------27----------Passenger Pretensioner Circuit Shorted to Battery or Ignition
B1883---18----------27----------Passenger Pretensioner Circuit Shorted to Ground
B1884---27----------15----------Passenger Air Bag Deactivation (PAD) Lamp Inoperative
B1885---46----------24----------Driver Pretensioner Circuit Resistance Low
B1886---47----------25----------Passenger Pretensioner Circuit Resistance Low
B1887---15-----------6----------Driver Air Bag Circuit Shorted to Ground
B1888---16-----------7----------Passenger Air Bag Circuit Shorted to Ground
B1890---27-----------15---------Passenger Air Bag Deactivation (PAD) Warning Lamp Shorted To Ground
B1891---—-----------------------Air Bag Tone Warning Indicator Circuit Shorted to Battery or Ignition
B1892---—------------—---------Air Bag Tone Warning Indicator Circuit Shorted to Ground or Open
B1916---15------------6----------Driver Air Bag Circuit Shorted to Battery or Ignition
B1921---21------------4----------RCM Bracket Ground Resistance High
B1925---16------------7----------Passenger Air Bag Circuit Shorted to Battery or Ignition
B1932---32------------8----------Driver Air Bag Circuit Resistance High
B1933---33------------9----------Passenger Air Bag Circuit Resistance High
B1934---34------------10---------Driver Air Bag Circuit Resistance Low
B1935---35------------11---------Passenger Air Bag Circuit Resistance Low
C1414---29------------5----------Incorrect Vehicle ID
----------------------------------No Communication with the Restraints Control Module (RCM)
https://www.ford-trucks.com/forums/4...-stays-on.html
Thread Starter
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Laughing Gas
Joined: Aug 2003
Posts: 836
Likes: 9
I checked all the plugs under the drivers seat with no results. Also rechecked the fuses related to the airbag with no results. I removed the heated mirror wire to fuse #27 in the panel with no results.
When I tapped into the main wire harness under the dash according to the Mirror installation instructions I had to remove some factory tape around the harness. After tapping the wires I re-wrapped the harness.. I removed the tape to check the wires I added and gave the wires a little more room. Success! Light is out. All I can think of although I can't see anything maybe when I removed the factory tape I nicked something?
I'm going to leave the 6 inch area where I removed the harness tape free for now.
If problem flares up again I may have to go back in there and examine the wire harness more closely.
When I tapped into the main wire harness under the dash according to the Mirror installation instructions I had to remove some factory tape around the harness. After tapping the wires I re-wrapped the harness.. I removed the tape to check the wires I added and gave the wires a little more room. Success! Light is out. All I can think of although I can't see anything maybe when I removed the factory tape I nicked something?
I'm going to leave the 6 inch area where I removed the harness tape free for now.
If problem flares up again I may have to go back in there and examine the wire harness more closely.
Banned
Joined: Dec 2018
Posts: 3,541
Likes: 458
I've often wondered what the shelf life is on those airbags and if I should be expecting it to either fail to work in a collision or blow up in my face while going down the road. Almost tempting to remove it and not have to wonder any more.
It's a Van Gogh
Joined: Feb 2010
Posts: 7,813
Likes: 1,335
From: Elk Grove, CA
I checked all the plugs under the drivers seat with no results. Also rechecked the fuses related to the airbag with no results. I removed the heated mirror wire to fuse #27 in the panel with no results.
When I tapped into the main wire harness under the dash according to the Mirror installation instructions I had to remove some factory tape around the harness. After tapping the wires I re-wrapped the harness.. I removed the tape to check the wires I added and gave the wires a little more room. Success! Light is out. All I can think of although I can't see anything maybe when I removed the factory tape I nicked something?
I'm going to leave the 6 inch area where I removed the harness tape free for now.
If problem flares up again I may have to go back in there and examine the wire harness more closely.
When I tapped into the main wire harness under the dash according to the Mirror installation instructions I had to remove some factory tape around the harness. After tapping the wires I re-wrapped the harness.. I removed the tape to check the wires I added and gave the wires a little more room. Success! Light is out. All I can think of although I can't see anything maybe when I removed the factory tape I nicked something?
I'm going to leave the 6 inch area where I removed the harness tape free for now.
If problem flares up again I may have to go back in there and examine the wire harness more closely.
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Hotshot
Joined: Mar 2014
Posts: 10,750
Likes: 1,065
From: Douglassville, PA
That is a good question, I never heard anything on a shelf life for them. FYI, the 'air bags' are activated with an explosion. There is some sort of explosive container in there that gets lit up when activated by a sensor somewhere up on the bumper. Also FYI, primers and ammo don't seem to have any shelf life restrictions if they're kept dry.
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