Test L

PINPOINT TEST L: LFC 25/DTC B1871 - PASSENGER AIR BAG DEACTIVATION (PAD) SWITCH FAULT

Test L1-L2:

Test L2-L3:

Test L4-L6:

Test L7:

Normal Operation
The Restraints Control Module (RCM) monitors the status of the Passenger Air Bag Deactivation (PAD) switch circuit. The PAD switch signals the RCM by switching a resistance to ground. If the RCM senses 900-1100 ohms in the PAD switch, it enables the passenger air bag and turns off the PAD switch warning lamp. If the RCM senses 400-600 ohms in the PAD switch, it deactivates the passenger air bag and turn off the PAD switch warning lamp on. If the RCM detects an invalid resistance, it will store a Diagnostic Trouble Code (DTC) B1871 in memory and flash a Lamp Fault Code (LFC) 25 (or higher priority code if one exists) on the air bag indicator.

Possible Causes
A PAD switch fault could be caused by:
^ a damaged or inoperative PAD switch.
^ a damaged or inoperative RCM module.
^ wiring, terminals, or connectors.