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.
Click here .gif)
| A |  | USE SIMULATION METHOD TO CHECK |
| B | | REPLACE PARKING ASSIST ECU |
| C | | REPLACE REAR TELEVISION CAMERA ASSEMBLY |
READ NEXT:
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:
Inspection
INSPECTION PROCEDURE 1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY (w/ Auto Wiper System) (a) Measure the resistance according to the value(s) in the table below. *A for Type A *B for Type B *a Component without harness connected (Windshield Wiper Switch Assembly) - - HINT: If t
System Diagram
SYSTEM DIAGRAM ELECTRICAL REMOTE CONTROL MIRROR FUNCTION MIRROR HEATER FUNCTION AUTOMATIC GLARE-RESISTANT EC MIRROR FUNCTION Communication Table Sender Receiver Signal Communication Method Air Conditioning Control Assembly Air Conditioning Amplifier Assembly Mirror heater switch
