Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual: 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 No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U1000 | CAN Communication Failure (Message Registry) | ECU malfunction | Clearance warning ECU assembly |
PROCEDURE
| 1. | CHECK FOR DTC |
(a) Clear the DTCs.
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(b) Check for DTCs.
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OK:
DTC U1000 is not output.
HINT:
If these DTCs are output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even if the DTC was not output when rechecking for DTCs.
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| OK |  | USE SIMULATION METHOD TO CHECK |
| NG | | REPLACE CLEARANCE WARNING ECU ASSEMBLY |
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 Condi ...
No. 1 Clearance Warning Buzzer Circuit
DESCRIPTION This circuit consists of the No. 1 clearance warning buzzer and clearance warning ECU assembly. An ECU-excited type buzzer is used. The ECU operates the buzzers using a sound pattern that ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Can Communication System: Blind Spot Monitor Sensor Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Blind Spot Monitor Sensor Communication Stop Mode Either condition is met:
"Blind Spot Monitor Master" is not displayed on the CAN Bus Check screen of the Techstream.
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Communication system DTCs (DTCs that start with U) ...
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Can Communication System: Clearance Warning ECU Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Clearance Warning ECU Communication Stop Mode Either condition is met:
"Clearance Warning (Intuitive Parking Assist)" is not displayed on the CAN Bus Check screen of the Techstream.
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Communication system DTCs (DTCs that ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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