Component Testing

In order to obtain conclusive testing of the Body Control Module (BCM), all of the electronic modules that provide inputs to, or receive outputs from the BCM must also be checked. The most reliable, efficient, and accurate means to diagnose the BCM requires the use of a DRB scan tool and the proper Diagnostic Procedures. The DRB scan tool can provide confirmation that the Programmable Communications Interface (PCI) data bus network is functional, that all of the electronic modules are sending and receiving the proper messages on the PCI data bus, and that the BCM is receiving the proper hard wired inputs and relaying the proper hard wired outputs to perform its many functions.