Lighting
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| • |
Lighting brightness not automatically controlled (no difference
between day and night)
|
|
| • |
Check the lighting control
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| • |
Check the ambient light sensor operation
|
| • |
Check the CAN communication
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|
| • |
Check the lighting control in the cluster USM
→ If working, HUD has no problem.
|
| • |
Check the ambient light sensor operation
→ If the ambient light sensor works, check the communications
(BCM ↔ HUD)
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Light sensor
BCM
Cluster
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Adjustment function
|
| • |
Display position not adjusted
|
|
| • |
Check the mirror movement when IG is on or off (parking
position)
|
|
| • |
If the step motor does not work when IG is on or off,
→ The step motor in HUD fails.
|
| • |
If the step motor in HUD works when IG is on or off,
→ Check the CAN communications (cluster ↔ HUD)
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|
HUD
Cluster
|
Head Up Display Unit Repair procedures