There are 2 different directions for that code and as HMAC300 suggested, you need a professional scan tool to be more precise.
O: LFC 27/DTC B1884-Pass Air Bag Deactivation Warning Lamp Inop
Normal Operation
The Restraints Control Module (RCM) has the ability to deactivate the passenger air bag under certain conditions. When the passenger air bag is deactivated, the Passenger Air Bag Deactivation (PAD) switch warning lamp will be illuminated.
The RCM monitors the PAD switch warning lamp for open or short to ground conditions. If the RCM detects an open or short to ground condition on the PAD switch warning lamp circuit, it will store a Diagnostic Trouble Code (DTC) B1884 in memory and flash a Lamp Fault Code (LFC) 27 (or higher priority code if one exists) on the air bag indicator.
Possible Causes
A PAD warning lamp inoperative fault could be caused by:
an open or short to ground on circuit 1113 (YE/LG).
A damaged or burned out PAD indicator.
A damaged or inoperative PAD lamp.
A damaged or inoperative RCM.
A blown PAD switch I/P fuse.
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P: LFC 27/DTC B1890-Psgr Air Bag Deact. Lamp Short/Btry
Normal Operation
The Restraints Control Module (RCM) has the ability to deactivate the passenger air bag under certain conditions. When the passenger air bag is deactivated, the Passenger Air Bag Deactivation (PAD) switch warning lamp will be illuminated.
The RCM monitors the PAD switch warning lamp for short to battery conditions. If the RCM detects a short to battery condition on the PAD switch warning lamp circuit, it will store a Diagnostic Trouble Code (DTC) B1890 in memory and flash a Lamp Fault Code (LFC) 27 (or higher priority code if one exists) on the air bag indicator.
Possible Causes
A PAD warning lamp short to battery fault could be caused by:
a short to battery on circuit 1113 (YE/LG).
A damaged or inoperative PAD switch.
A damaged or inoperative RCM.
Friday, November 1st, 2013 AT 12:44 PM
