Pinpoint Test T : DTC U0459:68: Notes

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Pinpoint Test T: DTC U0459:68

Diagnostic Overview

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Service Information for information about these practices.

Normal Operation and Fault Conditions

The HUD module is designed with a temperature sensor internal to the module. Due to extremely hot weather conditions, the temperature sensor circuit allows the HUD module to disable under high temperature conditions, which could damage the HUD module LEDs. The HUD module is designed with a LED prove-out test. Upon each ignition cycle when the ignition switch is in RUN, the LEDs illuminate for a period of time indicating the HUD module is functional.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Conditions
U0459:68	Invalid Data Received From Head Up Display: Event Information	Sets as a continuous memory in the C-CM when network communication is lost from the HUD module or if the HUD module is over-temperature.

Possible Sources

C-CM
HUD module