Pinpoint Test G: The HUD Module Is Inoperative
WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
- G1 CHECK FOR HUD MODULE LED PROVE OUT TEST NOTE: Remove the vehicle from the extreme heat source or sunload condition prior to testing the vehicle.
- Ignition ON.
- While placing the ignition switch in RUN, observe the HUD module LEDs.
Do the HUD module LEDs illuminate?
- Yes : The HUD module LEDs are operating correctly at this time. The concern may have been caused by extreme temperatures. TEST the system for normal operation.
- No : GO to G2 .
- G2 CHECK THE COMMUNICATION NETWORK
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Network Test.
- Carry out the network test.
Does the HUD module pass the network test?
- Yes : GO to G3 .
- No : REFER to MODULE COMMUNICATIONS NETWORK , The HUD module Does Not Respond To The Scan Tool.
- G3 CHECK THE DTCs FROM THE HUD MODULE AND C-CM SELF-TESTS
- Check the HUD module and C-CM DTCs from the self-tests.
Are any DTCs recorded?
- Yes
: For HUD
module DTCs, REFER to DTC CHARTS
.
For C-CM DTCs, REFER to CRUISE CONTROL .
- No : GO to G4 .
- G4 CHECK FOR CORRECT HUD MODULE OPERATION
- Disconnect the HUD module connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the HUD module connector and make sure it seats correctly.
- Operate the system and verify the concern is still present.
Is the concern still present?
- Yes : INSTALL a new HUD module. REFER to HEAD UP DISPLAY (HUD) MODULE . TEST the system for normal operation.
- No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.