INSPECTION PROCEDURE
PROCEDURE
1. CHECK DTC (CAN COMMUNICATION SYSTEM)
(a) Check for DTCs See: Powertrain Management/Computers and Control Systems/Information Bus/Testing and Inspection/Initial
Inspection and Diagnostic Overview/CAN Communication System/Diagnosis System
NEXT -- CHECK CAN COMMUNICATION SYSTEM See: Diagnostic Trouble Code Descriptions/CAN Communication
System
Up to 08/2009
PRE-COLLISION: PRE-COLLISION SYSTEM: U0122,U0123,U0126,U0140,U0151,U1100: Lost Communication with Vehicle Dynamics
Control Module
U1100 - Lost Communication with Seat Belt Control ECU
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.
These DTCs are stored when a communication malfunction occurs between the sensors and ECUs that detect collisions, or between ECUs that
perform the pre-collision control.
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