INSPECTION PROCEDURE
PROCEDURE
1. CHECK CAN COMMUNICATION SYSTEM
(a) Select "CAN Bus Check" from the "System Selection Menu" screen on the Techstream.
(b) Select "Communication Malfunction DTC" from the "CAN Bus Check" screen, and then select "Enter".
Result:
B -- GO TO CAN COMMUNICATION SYSTEM See: Diagnostic Trouble Code Descriptions/CAN Communication System
A -- CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION
) See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled
Systems/How To Proceed With Troubleshooting
From 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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