Part of the generic C1A16 overview — this page covers the Nissan meaning specifically.
OBD-II Diagnostic Trouble Code
C1A16
Radar stain (Component or system operation obstructed or blocked)
C
Chassis
brakes / steering
brakes / steering
1
Mfr
manufacturer code
manufacturer code
A
Chassis subsystem
16
Radar stain (Component or system operation obstructed or blocked)
Severity · general guide
High
Brakes/steering — inspect soon
Code type
Nissan
System
Chassis
Model
Leaf
Years
2017