Lexus ES: CAN Communication Failure (Message Registry) (U1000)
DESCRIPTION
If DTC U1000 is stored frequently, duplicate the problem symptoms and perform troubleshooting 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 Chassis > Rear Camera > Clear DTCs(b) Check for DTCs.
Chassis > Circumference Monitoring Camera Control Module > Trouble Codes Chassis > Rear Camera > Trouble Codes| Result | Proceed to |
|---|---|
| No DTCs are output | A |
| DTC U1000 is output ("Panoramic View Monitor") | B |
| DTC U1000 is output ("Parking Assist Camera") | C |
HINT:
If these DTCs are output frequently, duplicate the conditions that cause the problem symptoms and perform troubleshooting again, even if the DTC was not output when rechecking for DTCs.
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| A |  | USE SIMULATION METHOD TO CHECK |
| B | | REPLACE PARKING ASSIST ECU |
| C | | REPLACE REAR TELEVISION CAMERA ASSEMBLY |
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Components
COMPONENTS ILLUSTRATION *1 PARKING ASSIST ECU *2 PARKING ASSIST ECU COVER
Installation
INSTALLATION PROCEDURE 1. INSTALL PARKING ASSIST ECU (a) Turn back the front floor carpet assembly as shown in the illustration. (b) Engage the 2 guides to temporarily install the parki
SEE MORE:
Terminals Of Ecu
TERMINALS OF ECU CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (a) Disconnect the MB main body ECU (multiplex network body ECU) connector. Click here (b) Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure
Generator Temperature Sensor Circuit Short to Ground (P0A3611,P0A3615)
DTC SUMMARY MALFUNCTION DESCRIPTION These DTCs are stored when the generator temperature sensor output is abnormal. The cause of this malfunction may be one of the following: Hybrid vehicle control ECU malfunction
Hybrid vehicle control ECU internal malfunction
Generator temperature sensor ma
