Normal Operation and Fault Conditions
Possible Sources
Fuse Wiring, terminals and connector HUD module
Visual Inspection and Diagnostic Pre-checks
Verify BJB fuse 66 (5A) is OK.
PINPOINT TEST Z : THE HEAD UP DISPLAY (HUD) MODULE DOES NOT RESPOND TO THE
DIAGNOSTIC SCAN TOOL
Z1 CHECK THE HUD (HEAD UP DISPLAY) MODULE VOLTAGE SUPPLY CIRCUITS FOR AN OPEN
Ignition OFF. Disconnect: HUD Module C2395. Ignition ON. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C2395-4 | Ground |
Is the voltage greater than 11 volts?
Yes | GO to Z2 |
|---|---|
No | VERIFY the BJB fuse 66 (5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short. |
Z2 CHECK THE HUD (HEAD UP DISPLAY) MODULE GROUND CIRCUIT FOR AN OPEN
Ignition OFF. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C2395-1 | Ground |
Is the resistance less than 3 ohms?
Yes | GO to Z3 |
|---|---|
No | REPAIR the circuit. |
Z3 CHECK THE HS-CAN2 (HIGH SPEED-CONTROLLER AREA NETWORK 2) CIRCUITS BETWEEN THE HUD (HEAD UP DISPLAY) MODULE AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.