Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: 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
| 1. | CHECK DTC OUTPUT |
(a) Clear the DTCs
Click here .gif)
(b) Check for CAN communication system DTCs
Click here
| Result | Proceed to |
|---|---|
| CAN communication system DTCs are output | A |
| No CAN communication system DTCs are output | B |
| A |  | GO TO CAN COMMUNICATION SYSTEM |
| B | | USE SIMULATION METHOD TO CHECK |
Rear Sensor Communication Malfunction (C1AED)
DESCRIPTION This DTC is stored when there is an open or short circuit in the communication line between the rear sensors and the ECU, or when there is a malfunction in a rear sensor. DTC No. Dete ...
CAN Communication Failure (Message Registry) (U1000)
DESCRIPTION If DTC U1000 is stored frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again even if the DTC is not output when rechecking for DTCs. DTC ...
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Lexus RX (RX 350L, RX450h) 2016-2026 Owners Manual > Lexus RX (RX 350L, RX450h) 2016-2026 Owners Manual: For your information
Main Owner's Manual
Please note that this manual applies to all models and explains all
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All specifications provided in this manual are current at the time of printing.
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Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Airbag System: Short in P Squib (Dual Stage - 2nd Step) Circuit (B1815-B1818)
DESCRIPTION The front passenger squib 2nd step circuit consists of the airbag sensor assembly and instrument panel passenger airbag assembly. The airbag sensor assembly uses this circuit to deploy the airbag when deployment conditions are met. These DTCs are stored when a malfunction is detected in ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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