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
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Parts Location
PARTS LOCATION ILLUSTRATION *1 FORWARD RECOGNITION CAMERA *2 MILLIMETER WAVE RADAR SENSOR ASSEMBLY *3 BRAKE ACTUATOR ASSEMBLY - SKID CONTROL ECU *4 RACK AND PINION POWER STEERING GEAR ASSEMBLY - POWER STEERING ECU *5 ECM - - ILLUSTRATION *1 AIRBAG ECU ASSEMBLY
Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) auxiliary battery terminal, initialize the following systems after the cable is reconnected. System Name See Procedure Lane Control System (for H
