Test Notes

Normal Operation
The air bag Electronic Crash Sensor (ECS) module checks for driver air bag circuit shorts to battery or ignition by monitoring the voltage of Circuit 941 (LG) and 942 (BL) at Pins 1 and 15. If the ECS detects a short to battery or ignition on either of these pins, it will store a Diagnostic Trouble Code (DTC) B1916 in memory and flash a Lamp Fault Code (LFC) 15 (or higher priority code if one exists) on the air bag indictor.

Possible Causes
A driver air bag circuit shorted to battery or ignition could be caused by:
^ a short to battery or ignition on Circuit 941 (LG).
^ a short to battery or ignition on Circuit 942 (BL).
^ a short to battery or ignition on the air bag sliding contact.
^ a short to battery or ignition on the driver air bag module.