Lexus ES: Control Module Communication Bus Off (U0073,U0100,U0126,U0129,U0140,U0163,U0233,U023B,U0265,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 stored in other systems.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U0073 | Control Module Communication Bus Off | Control module communication bus off | CAN communication system |
| U0100 | Lost Communication With ECM/PCM "A" | Lost Communication with ECM | CAN communication system |
| U0126 | Steering Sensor Communication | Lost communication with steering sensor | CAN communication system |
| U0129 | Lost Communication with Brake System Control Module | Lost communication with skid control ECU | CAN communication system |
| U0140 | Lost Communication with Body Control Module | Lost communication with main body ECU (multiplex network body ECU) | CAN communication system |
| U0163 | Lost Communication With Navigation Control Module | Lost communication with multi-display assembly | CAN communication system |
| U0233 | Lost Communication with Blind Spot Monitor Master Module | Lost Communication with Blind spot monitor sensor LH | CAN communication system |
| U023B | Lost Communication with Panoramic View Monitor Control Module | Lost Communication with parking assist ECU | CAN communication system |
| U0265 | Lost Communication with Image Processing Sensor A | Lost Communication with rear television camera assembly | CAN communication system |
| U1110 | Lost Communication with Clearance Warning ECU | Lost communication with clearance warning ECU assembly | CAN communication system |
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 Codes| Result | Proceed to |
|---|---|
| DTCs are output | A |
| No DTCs are output | B |
HINT:
- If CAN communication system DTCs are stored, they may also be stored in other systems.
- If the CAN communication system has been inspected and repaired in other systems, the DTCs will not be output when rechecking for DTCs.
-
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
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| A |  | GO TO CAN COMMUNICATION SYSTEM |
| B | | USE SIMULATION METHOD TO CHECK |
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Lost Communication with Image Processing Sensor B (U0266-U0268)
DESCRIPTION These DTCs are stored when communication between the parking assist ECU and front television camera assembly, side television camera assembly LH, side television camera RH is not possible.
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 DT
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