DTC C1A0A: Front Radar Sensor Region Code Mismatch [04/2013 - 10/2016]: Description

The driving support ECU assembly uses the millimeter wave radar sensor assembly to detect obstacles in front of the vehicle.

Based on this information, the driving support ECU assembly sends pre-collision control operation signals.

When the millimeter wave radar sensor assembly is replaced with a new one, it acquires the country specification information from the driving support ECU assembly. Also, when the driving support ECU assembly is replaced with a new one, it receives country specification information from the main body ECU (multiplex network body ECU). When country specification information in the millimeter wave radar sensor assembly, driving support ECU assembly and/or main body ECU (multiplex network body ECU) do not match, DTC C1A0A is stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1A0A	Front Radar Sensor Region Code Mismatch	When the engine switch is on (IG), the country specification information from the driving support ECU assembly and millimeter wave radar sensor assembly do not match for approximately 2 seconds.	Millimeter wave radar sensor assembly Driving support ECU assembly Main body ECU (multiplex network body ECU)