Pre-Collision System

PRE-COLLISION: PRE-COLLISION SYSTEM: C1A0A: Front Radar Sensor Region Code Mismatch
C1A0A - Front Radar Sensor Region Code Mismatch

DESCRIPTION

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

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

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





INSPECTION PROCEDURE

NOTICE:
When the millimeter wave radar sensor is replaced with a new one, adjustment of the radar sensor beam axis must be performed Adjustments.

PROCEDURE

1. CHECK MILLIMETER WAVE RADAR SENSOR

(a) Using the Techstream, enter the following menus: Powertrain / Radar Cruise / Data List.

Radar Cruise





(b) Read the Data List and check the country specification information of the millimeter wave radar sensor and vehicle.

Result





B -- REPLACE MILLIMETER WAVE RADAR SENSOR Removal

A -- REPLACE DRIVING SUPPORT ECU Removal