Air Bag Code 41
Logistics Pro
Joined: Jul 2003
Posts: 3,588
Likes: 46
From: Lawton, Oklahoma
Year and model would help. Flash code 41 on a 98 F150 would be a Right hand crash sensor open circuit.
Normal Operation
The voltage at Pin C209-16, Circuit 617 (PK/O), is set by the air bag diagnostic monitor to be slightly less than battery voltage. Circuit 617 (PK/O) is connected to Circuit 624 (Y/W) inside the RH air bag sensor. Therefore, the voltage at Pin C208-24, Circuit 624 (Y/W) should be the same as the voltage at Pin C209-16, Circuit 617 (PK/O).
The air bag diagnostic monitor periodically pulls the voltage at Pin C209-16, Circuit 617 (PK/O), low to verify the connection to Pin C208-24, Circuit 624 (Y/W). If the voltage at Pin C208-24, Circuit 624 (Y/W), does not pull low as a result of this test, the air bag diagnostic monitor will store in memory the diagnostic trouble code (DTC) B1941 and flash a lamp fault code (LFC) 41 on the air bag indicator. If the connection between Pin C209-16, Circuit 617 (PK/O), and Pin C208-24, Circuit 624 (Y/W), is later repaired, the DTC B1941 will be stored in memory.
Possible Causes
Failure to get low voltage at Pin C208-24, Circuit 624 (Y/W), during the test can be caused by:
an open circuit in the wiring harness in either Circuit 617 (PK/O) or Circuit 624 (Y/W).
an open circuit inside the RH air bag sensor across Circuit 617 (PK/O) or Circuit 624 (Y/W).
a short to battery or ignition voltage in any of the Circuits 617 (PK/O), 619 (PK/W), 624 (Y/W), or 625 (Y/LG).
Normal Operation
The voltage at Pin C209-16, Circuit 617 (PK/O), is set by the air bag diagnostic monitor to be slightly less than battery voltage. Circuit 617 (PK/O) is connected to Circuit 624 (Y/W) inside the RH air bag sensor. Therefore, the voltage at Pin C208-24, Circuit 624 (Y/W) should be the same as the voltage at Pin C209-16, Circuit 617 (PK/O).
The air bag diagnostic monitor periodically pulls the voltage at Pin C209-16, Circuit 617 (PK/O), low to verify the connection to Pin C208-24, Circuit 624 (Y/W). If the voltage at Pin C208-24, Circuit 624 (Y/W), does not pull low as a result of this test, the air bag diagnostic monitor will store in memory the diagnostic trouble code (DTC) B1941 and flash a lamp fault code (LFC) 41 on the air bag indicator. If the connection between Pin C209-16, Circuit 617 (PK/O), and Pin C208-24, Circuit 624 (Y/W), is later repaired, the DTC B1941 will be stored in memory.
Possible Causes
Failure to get low voltage at Pin C208-24, Circuit 624 (Y/W), during the test can be caused by:
an open circuit in the wiring harness in either Circuit 617 (PK/O) or Circuit 624 (Y/W).
an open circuit inside the RH air bag sensor across Circuit 617 (PK/O) or Circuit 624 (Y/W).
a short to battery or ignition voltage in any of the Circuits 617 (PK/O), 619 (PK/W), 624 (Y/W), or 625 (Y/LG).
Hotshot
Joined: Aug 2002
Posts: 12,679
Likes: 14
From: BC, Canada
Hi Tim and welcome to the forum 
A flashout code 27 means a problem with the PAD (Passenger Airbag Disable) switch.
The common cause is the bulb in the switch is burned out. According to Ford you have to replace the switch to cure it.
If you do a search on here I think you'll find instructions on just replacing the bulb.
A flashout code 27 means a problem with the PAD (Passenger Airbag Disable) switch.
The common cause is the bulb in the switch is burned out. According to Ford you have to replace the switch to cure it.
If you do a search on here I think you'll find instructions on just replacing the bulb.
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