Dynamic Radar Cruise Control System
CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: C1A0A: Front Radar Sensor Region Code Mismatch
C1A0A - Front Radar Sensor Region Code Mismatch
DESCRIPTION
The driving support ECU assembly uses the millimeter wave radar sensor to detect obstacles in front of the vehicle.
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 the country specification information from the main body ECU. When the country specification information in the sensor and 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 Adjustments.
PROCEDURE
1. READ VALUE USING TECHSTREAM
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Clear the DTCs.
(d) Enter the following menus: Powertrain / Radar Cruise / Data List / Country# (F Radar Sens).
(e) Read the Data List and check the country specification information of the front millimeter wave radar sensor and vehicle.
Radar Cruise
Result
B -- REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY Removal
A -- Continue to next step.
2. CHECK WHETHER DTC OUTPUT RECURS (DTC C1A0A)
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Clear the DTCs Dynamic Radar Cruise Control System.
(d) Perform the following to make sure that the DTC detection conditions are met.
HINT
If the detection conditions are not met, the malfunction cannot be detected.
(1) Drive the vehicle at a speed of 50 km/h (30 mph) and 170 km/h (105 mph).
(2) Turn the cruise control switch (ON-OFF button) on.
(3) Push the -/SET switch to activate the cruise control.
(e) Enter the following menus: Powertrain / Radar Cruise / Trouble Codes.
(f) Read the DTCs.
Result:
B -- REPLACE DRIVING SUPPORT ECU ASSEMBLY Removal
A -- END