Test Q: No Communication With ECS Module (DTC B1868): Description
WARNING: This page is about a different car, the 2003 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.
Electronic Crash Sensor (ECS) module will communicate fault codes through scan tool using DLC. If scan tool displays NO COMMUNICATION when retrieving continuous DTCs, use this test to troubleshoot system.