Pinpoint Test H : B106E, B106F: Notes

Diagnostic Overview

Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to Service Information for information regarding Ford-specific diagnostic practices.

Normal Operating and Fault Conditions

The DSM controls the output to the exterior mirrors using solid state drivers. A DTC sets when an overload occurs on any of these drivers. The DSM tracks the number of repetitive faults on each circuit. The DSM compares the 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 B106E sets along with the DTC relating to the affected circuit. Once the final threshold has been exceeded, the affected output is permanently disabled and DTC B106F sets along with DTC B1342, at which time the DSM must be replaced.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Conditions
B106E	Solid State Driver Disabled Due to Short Circuit	Sets when the DSM has disabled a circuit due to a repetitive fault causing a circuit overload. A corresponding DTC for the circuit in question also sets.
B106F	Module Disabled Due to External Fault	Sets when one or more output functions are permanently disabled due to a repetitive circuit overload fault. DTC B106F sets with DTC B1342. When DTC B106F is present, a new DSM must be installed after the fault condition has been corrected.