Pre-Collision System

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

DTC C1A0A - Front Radar Sensor Region Code Mismatch

DESCRIPTION

The driving support ECU uses the front 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 front 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 combination meter. When country specification information in the sensor and ECU do not match, DTC C1A0A is output.






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

PROCEDURE

1. READ VALUE USING FRONT MILLIMETER WAVE RADAR SENSOR
(a) Enter the following menus: Powertrain / Radar Cruise /. The select "Data List".
(b) Read the Data List and check the country specification information of the front millimeter wave radar sensor and vehicle.

Result





HINT:
- The country specification information of the driving support ECU is decided by the combination meter. Even if the vehicle and sensor country specification information match, if the country specification information for the vehicle and ECU/meter do not match, it is necessary to replace the ECU and meter.
- When the country specification information (North America [<-]Europe [->]) for the vehicle body and sensor do not match, the sensor's information can be overwritten by performing the sensor's axis adjustment.

C -- ADJUST FRONT MILLIMETER WAVE RADAR SENSOR
B -- REPLACE FRONT MILLIMETER WAVE RADAR SENSOR
A -- REPLACE COMBINATION METER AND DRIVING SUPPORT ECU