Test Notes

Normal Operation
The air bag Electronic Crash Sensor (ECS) module checks for passenger air bag circuit shorts to ground by monitoring the voltage of Circuits 943 (Y/R) and 944 (R) at Pins 14 and 28. If the ECS detects a short to ground on either of these pins it will store a Diagnostic Trouble Code (DTC) B1888 in memory and flash a Lamp Fault Code (LFC) 16 (or higher priority code if one exists) on the air bag indicator.

Possible Causes
A passenger air bag circuit shorted to ground could be caused by:
^ a short to ground on Circuit 943 (Y/R).
^ a short to ground on Circuit 944 (R).
^ a short to ground on the passenger air bag module.