Pinpoint Test H: An Individual FDIM Display Is Inoperative - Vehicles With Navigation

Information and Entertainment System

Pinpoint Test H: An Individual FDIM Display Is Inoperative - Vehicles With Navigation

Normal Operation

The Front Display Interface Module (FDIM) display provides information based on the video signal from the Audio Control Module (ACM). In addition to the information that the ACM controls for the navigation and audio system, the ACM receives inputs via the Medium Speed Controller Area Network (MS-CAN) from the following modules:

- Accessory Protocol Interface Module (APIM): SYNC system information (if equipped)
- HVAC module: climate control system information

If the ACM loses the signal from any of these modules, only that specific display is inoperative.

- DTC U0164:00 (Lost Communication With HVAC Control Module: No Sub Type Information) - set by the ACM if it does not receive status messages from the HVAC module for greater than 5 seconds with the ignition in the RUN position. When this occurs, the FDIM may not display correct (if any) climate control information.

This pinpoint test is intended to diagnose the following:

- Communication network concern
- FDIM
- ACM



PINPOINT TEST H: AN INDIVIDUAL FDIM DISPLAY IS INOPERATIVE - VEHICLES WITH NAVIGATION

H1-H6:

H6-H7: