DTC Detection Logic

WARNING: This page is about a different car, the 2012 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A16 (16)	RADAR STAIN	If any stain occurs to ICC sensor body window	Stain or foreign materials is deposited Cracks or scratches exist

NOTE: DTC "C1A16" may be detected under the following conditions. (Explain to the customer about the difference between the contamination detection function and the indication when the malfunction is detected and tell them "This is not malfunction".)

When contamination or foreign materials adhere to the ICC sensor body window
When driving while it is snowing or when frost forms on the ICC sensor body window
When ICC sensor body window is temporarily fogged