Diagnostic Routine G

Diagnostic Routine G

Diagnostic Overview

The Head Up Display (HUD) Module Is Inoperative

Normal Operation and Fault Conditions

REFER to Head Up Display (HUD) Module .

Pinpoint Test

1. CHECK FOR HUD (Head Up Display) MODULE LED (Light-emitting Diode) PROVE OUT TEST
NOTE: Remove the vehicle from the extreme heat source or sunload condition prior to testing the vehicle.

1. Ignition ON.

2. While placing the ignition in RUN, observe the HUD (Head Up Display) module LEDs (Light-emitting Diodes).

Do the HUD (Head Up Display) module LEDs (Light-emitting Diodes) illuminate?








2. CHECK THE COMMUNICATION NETWORK

1. Ignition ON.

2. Using a scan tool, perform a network test.

Does the HUD (Head Up Display) module pass the network test?








3. CHECK THE DTCs (Diagnostic Trouble Codes) FROM THE HUD (Head Up Display) MODULE SELF-TEST

1. Using a scan tool, perform the HUD (Head Up Display) module self-test.

Are any DTCs (Diagnostic Trouble Codes) recorded?








4. CHECK THE C-CM (Cruise-Control Module) SELF-TEST

1. Using a scan tool, perform the C-CM (Cruise-Control Module) DTCs (Diagnostic Trouble Codes) self-test.

Are any DTCs (Diagnostic Trouble Codes) recorded?








5. CHECK FOR CORRECT HUD (Head Up Display) MODULE OPERATION

1. Disconnect and inspect the HUD (Head Up Display) module connector.

2. Repair:

- corrosion (install new connector or terminals- clean module pins)
- damaged pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

3. Reconnect the HUD (Head Up Display) module connector. Make sure it seats and latches correctly.

4. Operate the system and determine if the concern is still present.

Is the concern still present?