Troubleshooting
OK -- 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
From 08/2009
NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM (for HDD): U0073,U0155,U0164,U1110: Control Module
Communication Bus Off
U1110 - Lost Communication with Clearance Warning ECU
DESCRIPTION
These DTCs are stored when a malfunction occurs in the CAN communication circuit.
INSPECTION PROCEDURE
PROCEDURE
1. CHECK DTC
(a) Clear the DTC See: Accessories and Optional Equipment/Navigation System/Testing and Inspection/Reading and Clearing
Diagnostic Trouble Codes/Navigation System (for HDD).
(b) Recheck for DTCs and check if the same DTC is output again.
OK:
No DTCs are output.
NG -- 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
OK -- 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
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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