INSPECTION PROCEDURE
NOTICE:
When the millimeter wave radar sensor is replace 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. ADJUST MILLIMETER WAVE RADAR SENSOR
(a) Adjust the millimeter wave radar sensor See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist
Systems/Distance Sensor/Adjustments.
NEXT -- Continue to next step.
2. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM)
(a) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.
(b) Clear the DTCs See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes/Pre-Collision System.
(c) Drive the vehicle.
(d) Recheck for DTCs.
OK:
DTC C1A11 or C1A14 is not output.
HINT
After performing the radar beam axis adjustment, if the same DTC is output again after the DTC detection conditions are met,
replace the driving support ECU.
NG -- REPLACE DRIVING SUPPORT ECU See: Cruise Control/Cruise Control Module/Service and Repair/Removal
OK -- END
Up to 08/2009
PRE-COLLISION: PRE-COLLISION SYSTEM: C1A46: Yaw Rate Sensor
C1A46 - Yaw Rate Sensor
DESCRIPTION
The skid control ECU receives vehicle stability signals from the yaw rate sensor and sends the signals to the driving support ECU and ECM. If the
skid control ECU detects that the yaw rate sensor is malfunctioning, the skid control ECU sends a malfunction signal to the driving support ECU,
and the driving support ECU stores DTC C1A46. Also, when DTC C1A46 is stored, the skid control ECU stores DTC C1435 at the same time.
INSPECTION PROCEDURE
HINT
This circuit uses CAN communication. Therefore, be sure to check that the CAN communication system is normal before
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