Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Head Up Display Schematics | ||||
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 |
Is the HUD display visible? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Do all of the segments on the HUD illuminate? | -- | Go to Step 4 | Go to Step 10 |
4 | Test the ignition 3 voltage circuit for an open, a high resistance, or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Repairs. Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 5 |
5 |
Does the test lamp illuminate? | -- | Go to Step 7 | Go to Step 6 |
6 | Test the dimmer switch signal circuit for a an open or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Repairs. Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 8 |
7 | Inspect for poor connections at the harness connector of the HUD module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 10 |
8 | Inspect for poor connections at the harness connector of the HUD dimmer switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 9 |
9 | Replace the HUD dimmer switch. Refer to Head Up Display Switch Replacement . Did you complete the replacement? | -- | Go to Step 11 | -- |
10 | Replace the HUD module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | -- | Go to Step 11 | -- |
11 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
