Head Up Display (HUD) Inoperative
WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
Head Up Display (HUD) Inoperative
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Head Up Display Schematics | |||
| 1 | Did you perform the Instrument Panel Cluster (IPC) Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Instrument Cluster |
| 2 |
|
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Does the HUD display 2 dashes? | Go to Step 4 | Go to Step 5 |
| 4 | Test the HUD clock circuit for a short to ground, or an open at the IPC. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 18 | Go to Step 6 |
| 5 | Test the HUD ground circuit for a short to B+, or an open at the IPC. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 18 | Go to Step 8 |
| 6 | Test the HUD data circuit for an open or a short to ground at the IPC. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 18 | Go to Step 7 |
| 7 | Test the HUD strobe circuit for an open or a short to ground at the IPC. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 18 | Go to Step 13 |
| 8 | Test the HUD ignition 1 circuit for a short to ground, or an open at the IPC. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 18 | Go to Step 9 |
| 9 | Test the HUD dim slider circuit for an open at the IPC. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 18 | Go to Step 10 |
| 10 | Test the HUD switch ground circuit for an open at the HUD switch. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 18 | Go to Step 11 |
| 11 | Test the HUD switch dim slider circuit for an open at the HUD switch. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 18 | Go to Step 12 |
| 12 | Test the HUD switch page circuit for an open at the HUD switch. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 18 | Go to Step 13 |
| 13 | Inspect for poor connections at the harness connector of the HUD switch and IPC. 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 18 | Go to Step 14 |
| 14 | Inspect for poor connections at the harness connector of the HUD. 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 18 | Go to Step 15 |
| 15 | Replace the HUD switch. Refer to Head Up Display Switch Replacement . Did you find and correct the condition? |
Go to Step 18 | Go to Step 16 |
| 16 | Replace the HUD. Refer to Head Up Display Replacement . Did you find and correct the condition? |
Go to Step 18 | Go to Step 17 |
| 17 | Replace the IPC. Refer to Instrument Panel Cluster (IPC) Replacement . Did you complete the replacement? |
Go to Step 18 | - |
| 18 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 2 |