INSPECTION PROCEDURE
PROCEDURE
1. CHECK DTC
(a) Clear the DTC See: Steering and Suspension/Suspension/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes.
(b) Perform a road test.
(c) Check for DTC See: Steering and Suspension/Suspension/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes.
Result:
HINT
If a CAN communication malfunction DTC and a related sensor malfunction DTC are output at the same time, the CAN
communication malfunction must be repaired before troubleshooting the sensor malfunction DTC.
B -- USE SIMULATION METHOD TO CHECK See: Accessories and Optional Equipment/Antitheft and Alarm
Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled Systems/How To Proceed With Troubleshooting
A -- GO TO CAN COMMUNICATION SYSTEM See: Powertrain Management/Computers and Control Systems/Information
Bus/Testing and Inspection/Initial Inspection and Diagnostic Overview/CAN Communication System/How to Proceed With
Troubleshooting
Up to 08/2009
CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: U0100,U0122,U0123,U0126,U1104: Lost Communication with
ECM / PCM "A"
U1104 - Lost Communication with Driving Support ECU
DESCRIPTION
The ECM communicates several signals with each sensor and ECU by CAN communication circuit.
There are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.
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