Hyundai Kona: Head Up Display System / Head Up Display Unit Troubleshooting

Troubleshooting

Category

Error symptoms

inspection item

Detailed inspection item

Related parts

Lighting

•	HUD not working

•	Lighting brightness not automatically controlled (no difference between day and night)

•	Check the lighting control

•	Check the ambient light sensor operation

•	Check the CAN communication

•	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)

Light sensor
BCM
Cluster

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)

HUD
Cluster

Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the instrument cluster. (Refer to Indicator ...

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Inspection Operating Logic Test (Manual only) Inspect the PTC operation by confirmation logic as follows; 1. Entering (1) Set the Floor mode and maximum heating position. (2 ...

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Inspection 1. Turn the ignition switch OFF. 2. Disconnect the RCV connector. 3. Measure resistance between the RCV terminals 1 and 2. 4. Check that the resistance is within the spec ...