Battery, display and LiDAR sensor have separate guides, giving a distinct path for depth-sensing faults.
What to check before buying
Depth sensor
iFixit lists a LiDAR sensor guide apart from the rear camera and display guides. A fault in depth scanning should be identified separately from a cracked camera cover.
Battery and screen
A worn battery and damaged OLED screen each have model-specific instructions. The Pro's display and sensor parts differ from the standard iPhone 13.