F250 Airbag light blinks and stays on!
#1
F250 Airbag light blinks and stays on!
Hey, what the heck.
I pulled my CD player and put it back in and now my air bag light won't go out when it self tests. It blinks for a while then stays on steady.
What's up with that -- I thought I was having enough problems with the CD player as it was?
Steve
I pulled my CD player and put it back in and now my air bag light won't go out when it self tests. It blinks for a while then stays on steady.
What's up with that -- I thought I was having enough problems with the CD player as it was?
Steve
#2
#4
Try this procedure.
DISARMING THE SYSTEM
Disconnect the negative battery cable from the battery.
Disconnect the positive battery cable from the battery.
Wait one minute. This time is required for the back-up power supply in the air bag diagnostic monitor to completely drain. The system is now disarmed.
If you are disarming the system with the intent of testing the system, do not! The SRS is a sensitive, complex system and should only be tested or serviced by a qualified automotive technician. Also, specific tools are needed for SRS testing.
ARMING THE SYSTEM
Connect the positive battery cable.
Connect the negative battery cable.
Stand outside the vehicle and carefully turn the ignition to the RUN position. Be sure that no part of your body is in front of the air bag module on the steering wheel, to prevent injury in case of an accidental air bag deployment.
Ensure the air bag indicator light turns off after approximately 6 seconds. If the light does not illuminate at all, does not turn off, or starts to flash, have the system tested by a qualified automotive technician. If the light does turn off after 6 seconds and does not flash, the SRS is working properly.
Disconnect the negative battery cable from the battery.
Disconnect the positive battery cable from the battery.
Wait one minute. This time is required for the back-up power supply in the air bag diagnostic monitor to completely drain. The system is now disarmed.
If you are disarming the system with the intent of testing the system, do not! The SRS is a sensitive, complex system and should only be tested or serviced by a qualified automotive technician. Also, specific tools are needed for SRS testing.
ARMING THE SYSTEM
Connect the positive battery cable.
Connect the negative battery cable.
Stand outside the vehicle and carefully turn the ignition to the RUN position. Be sure that no part of your body is in front of the air bag module on the steering wheel, to prevent injury in case of an accidental air bag deployment.
Ensure the air bag indicator light turns off after approximately 6 seconds. If the light does not illuminate at all, does not turn off, or starts to flash, have the system tested by a qualified automotive technician. If the light does turn off after 6 seconds and does not flash, the SRS is working properly.
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#8
If you can read out the trouble code based on the flashes of the air bag light I can give you the code description. My F-350 is a 99.5 but I suspect the codes are the same for the 02 as the 99. Here is the process.
Retrieving Lamp Flash Codes (LFC)
The Electronic Crash Sensor (ECS) monitors the Supplemental Restraint System (SRS) for possible faults. If a fault is detected while the ignition switch is in the RUN position, the ECS will illuminate the air bag indicator located in the instrument cluster. When the ignition is cycled (turned off and then turned on), the air bag indicator will flash the two-digit Lamp Fault Code (LFC). The air bag indicator will flash the LFC five times, then it will remain illuminated for the rest of the key cycle. The ECS will also communicate the current and historical DTCs through the Data Link Connector (DLC) , using the New Generation STAR (NGS) Tester. If the air bag indicator does not function, and the system detects a fault condition, the ECS will signal the GEM to activate an audible chime. The chime is a series of five sets of five tone bursts. If the chime or buzzer is heard, the SRS and the air bag indicator requires service.
Lamp fault codes are prioritized. If two or more faults occur at the same time, the fault having the highest priority will be displayed first. After that fault has been corrected, the next highest priority fault will be displayed.
John
Retrieving Lamp Flash Codes (LFC)
The Electronic Crash Sensor (ECS) monitors the Supplemental Restraint System (SRS) for possible faults. If a fault is detected while the ignition switch is in the RUN position, the ECS will illuminate the air bag indicator located in the instrument cluster. When the ignition is cycled (turned off and then turned on), the air bag indicator will flash the two-digit Lamp Fault Code (LFC). The air bag indicator will flash the LFC five times, then it will remain illuminated for the rest of the key cycle. The ECS will also communicate the current and historical DTCs through the Data Link Connector (DLC) , using the New Generation STAR (NGS) Tester. If the air bag indicator does not function, and the system detects a fault condition, the ECS will signal the GEM to activate an audible chime. The chime is a series of five sets of five tone bursts. If the chime or buzzer is heard, the SRS and the air bag indicator requires service.
Lamp fault codes are prioritized. If two or more faults occur at the same time, the fault having the highest priority will be displayed first. After that fault has been corrected, the next highest priority fault will be displayed.
John
#9
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)
.
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)
.
#10
Your my buddy -- the error code was "B1884---27----------15----------Passenger Air Bag Deactivation (PAD) Lamp Inoperative"
Once I knew what the flash code was I turned off the passenger air bag and sure enough the "passenegr air bag off" light did not come. I wiggled the key around in the lock and the light started to work again. I cycled the ignition again and the system tested OK!
You saved me couple hundred, thanks
Steve
Once I knew what the flash code was I turned off the passenger air bag and sure enough the "passenegr air bag off" light did not come. I wiggled the key around in the lock and the light started to work again. I cycled the ignition again and the system tested OK!
You saved me couple hundred, thanks
Steve
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#14
Originally Posted by jetfxr
My 02 Explorer gives me a flash code "34" meaning circuit resistance is low. What would I do to find/fix this fault. Thank You Paul in Wisconsin