Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: CAN Communication Failure (Message Registry) (U1000)
DESCRIPTION
If DTC U1000 is stored frequently, duplicate 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 | Parking assist ECU |
PROCEDURE
| 1. | CHECK FOR DTC |
(a) Clear the DTCs.
Chassis > Circumference Monitoring Camera Control Module > Clear DTCs(b) Check for DTCs.
Chassis > Circumference Monitoring Camera Control Module > Trouble CodesOK:
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.
Click here .gif)
| OK |  | USE SIMULATION METHOD TO CHECK |
| NG | | REPLACE PARKING ASSIST ECU |
Control Module Communication Bus Off (U0073,U0100,U0126,U0129,U0140,U0163,U0233,U0265-U0268,U1110)
DESCRIPTION These DTCs are stored if there is a malfunction in the CAN communication system connected to the parking assist ECU. HINT: If CAN communication system DTCs are stored, they may also be sto ...
"CHK" message(s) are displayed on the SIGNAL CHECK screen.
DESCRIPTION On the SIGNAL CHECK screen, it is possible to check if the signals sent to the parking assist ECU are normal. Click here HINT:
On the SIGNAL CHECK screen, "OK" (blue) is displayed for ...
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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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