Normal Operation

WARNING: This page is about a different car, the 2010 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

The Body Control Module B (BCM-B) controls the output of several vehicle systems by means of solid state drivers. When an overload occurs on any of these drivers, a DTC will be set. The module also tracks the number of repetitive faults on each of these circuits. The module compares this number of overloads to 3 progressive thresholds established for each circuit. If the 3 thresholds have not been exceeded, then the DTC of the affected circuit can be cleared by eliminating the fault, then clearing the DTCs and running the self-test. At the point that each of the first 2 thresholds are exceeded, DTC U1000:00 will be set along with the DTC relating to the affected circuit. Once the final threshold has been exceeded, the affected output is permanently disabled, and DTC U3000:49 will be set, at which time the BCM-B must be replaced.

DTC U1000:00 (Solid State Driver Protection Actived - Driver Disabled: No Sub Type Information) - sets when the BCM-B has disabled a circuit due to a repetitive fault causing a circuit overload. A corresponding DTC for the circuit in question will also set.
DTC U3000:49 (Control Module: Internal Electronic Failure) - sets when one or more output functions are permanently disabled due to a repetitive circuit overload fault. DTC U3000:49 will be set with DTC U1000:00. When DTC U3000:49 is present, a new BCM-B must be installed after the fault condition has been corrected.

This pinpoint test is intended to diagnose the following:

Output circuit short to ground or voltage
BCM-B