Lexus ES: Control Module Communication Bus Off (U0073,U0100,U0126,U0129,U0140,U0163,U0233,U023B,U0265,U0293,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 |
| U0293 | Lost Communication with Hybrid Control Module | Lost communication with hybrid vehicle control ECU 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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