All of the sensors are interchangeable. To confirm whether a sensor is functioning normally, switch it with a known good sensor
from the other end of the vehicle.
Text in Illustration
NEXT -- Continue to next step.
3. CHECK DTC OUTPUT
(a) Clear the DTCs See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes/Intuitive Parking Assist System.
(b) Check for DTCs See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes/Intuitive Parking Assist System.
Result:
C -- END (REAR RIGHT SENSOR WAS DEFECTIVE)
B -- REPLACE PARKING ASSIST ECU See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist
Systems/Parking Assist Control Module/Service and Repair/Parking Assist ECU/Removal
A -- REPLACE CLEARANCE WARNING ECU See: Accessories and Optional Equipment/Collision Avoidance and Parking
Assist Systems/Parking Assist Control Module/Service and Repair/Clearance Warning ECU/Removal
Up to 08/2009
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 output.
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
See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Distance Sensor/Adjustments.
PROCEDURE
1. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM)
(a) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.
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