Tech Tips
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptom are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | Link |
|---|---|---|
| Headup display is not displayed. | Proceed to "Main Switch Circuit" | |
| Fuse (MPX-B P NO. 1, IG1 D NO. 1) | - | |
| Wire harness or connector | - | |
| Meter mirror sub-assembly | ||
| Brightness of the headup display does not change. | Perform Active Test (Display Brightness) | |
| Read the Data List (Brightness Up Switch (Meter)), Brightness Down Switch (Meter)) | ||
| Meter mirror sub-assembly | ||
| Headup display is not displayed in the correct position. | Perform Active Test (Display Position) | |
| Read the Data List (Projection Position Up Switch (Meter), Projection Position Down Switch (Meter)) | ||
| Meter mirror sub-assembly | ||
| Other headup display malfunction (Other systems are normal) | Meter mirror sub-assembly |