Lexus NX: Control Module Communication Bus "A" Off (U0073,U0155)
DESCRIPTION
These DTCs are stored when the clearance warning ECU assembly cannot receive and recognize several signals via the CAN communication line.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
U0073 | Control Module Communication Bus "A" Off | Control module communication bus off | CAN communication system |
U0155 | Lost Communication with Instrument Panel Cluster (IPC) Control Module | Lost communication with the combination meter assembly | CAN communication system |
HINT:
When 2 or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harnesses of each ECU.
PROCEDURE
(a) Clear the DTCs
Click here
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs
(b) Check for CAN communication system DTCs
Click here
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes
Result | Proceed to |
No CAN communication system DTCs are output | A |
CAN communication system DTCs are output | B |
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